/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.commons.compress.harmony.pack200;

import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.commons.compress.harmony.pack200.AttributeDefinitionBands.AttributeDefinition;
import org.apache.commons.compress.harmony.pack200.IcBands.IcTuple;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;

/**
 * Class bands (corresponds to the {@code class_bands} set of bands in the
 * pack200 specification)
 */
public class ClassBands extends BandSet {

        private final CpBands cpBands;
        private final AttributeDefinitionBands attrBands;

        private final CPClass[] class_this;
        private final CPClass[] class_super;
        private final CPClass[][] class_interface;
        private final int[] class_interface_count;

        private final int[] major_versions;

        private final long[] class_flags;
        private int[] class_attr_calls;
        private final List<CPUTF8> classSourceFile = new ArrayList<>();
        private final List<ConstantPoolEntry> classEnclosingMethodClass = new ArrayList<>();
        private final List<ConstantPoolEntry> classEnclosingMethodDesc = new ArrayList<>();
        private final List<CPSignature> classSignature = new ArrayList<>();

        private final IntList classFileVersionMinor = new IntList();
        private final IntList classFileVersionMajor = new IntList();

        private final int[] class_field_count;
        private final CPNameAndType[][] field_descr;
        private final long[][] field_flags;
        private int[] field_attr_calls;
        private final List<CPConstant<?>> fieldConstantValueKQ = new ArrayList<>();
        private final List<CPSignature> fieldSignature = new ArrayList<>();

        private final int[] class_method_count;
        private final CPNameAndType[][] method_descr;
        private final long[][] method_flags;
        private int[] method_attr_calls;
        private final List<CPSignature> methodSignature = new ArrayList<>();
        private final IntList methodExceptionNumber = new IntList();
        private final List<CPClass> methodExceptionClasses = new ArrayList<>();

        private int[] codeHeaders;
        private final IntList codeMaxStack = new IntList();
        private final IntList codeMaxLocals = new IntList();
        private final IntList codeHandlerCount = new IntList();
        private final List codeHandlerStartP = new ArrayList();
        private final List codeHandlerEndPO = new ArrayList();
        private final List codeHandlerCatchPO = new ArrayList();
        private final List<CPClass> codeHandlerClass = new ArrayList<>();
        private final List<Long> codeFlags = new ArrayList<>();
        private int[] code_attr_calls;
        private final IntList codeLineNumberTableN = new IntList();
        private final List codeLineNumberTableBciP = new ArrayList();
        private final IntList codeLineNumberTableLine = new IntList();
        private final IntList codeLocalVariableTableN = new IntList();
        private final List codeLocalVariableTableBciP = new ArrayList();
        private final List codeLocalVariableTableSpanO = new ArrayList();
        private final List<ConstantPoolEntry> codeLocalVariableTableNameRU = new ArrayList<>();
        private final List<ConstantPoolEntry> codeLocalVariableTableTypeRS = new ArrayList<>();
        private final IntList codeLocalVariableTableSlot = new IntList();
        private final IntList codeLocalVariableTypeTableN = new IntList();
        private final List codeLocalVariableTypeTableBciP = new ArrayList();
        private final List codeLocalVariableTypeTableSpanO = new ArrayList();
        private final List<ConstantPoolEntry> codeLocalVariableTypeTableNameRU = new ArrayList<>();
        private final List<ConstantPoolEntry> codeLocalVariableTypeTableTypeRS = new ArrayList<>();
        private final IntList codeLocalVariableTypeTableSlot = new IntList();

        private final MetadataBandGroup class_RVA_bands;
        private final MetadataBandGroup class_RIA_bands;
        private final MetadataBandGroup field_RVA_bands;
        private final MetadataBandGroup field_RIA_bands;
        private final MetadataBandGroup method_RVA_bands;
        private final MetadataBandGroup method_RIA_bands;
        private final MetadataBandGroup method_RVPA_bands;
        private final MetadataBandGroup method_RIPA_bands;
        private final MetadataBandGroup method_AD_bands;

        private final List<NewAttributeBands> classAttributeBands = new ArrayList<>();
        private final List<NewAttributeBands> methodAttributeBands = new ArrayList<>();
        private final List<NewAttributeBands> fieldAttributeBands = new ArrayList<>();
        private final List<NewAttributeBands> codeAttributeBands = new ArrayList<>();

        private final List<Long> tempFieldFlags = new ArrayList<>();
        private final List<CPNameAndType> tempFieldDesc = new ArrayList<>();
        private final List<Long> tempMethodFlags = new ArrayList<>();
        private final List<CPNameAndType> tempMethodDesc = new ArrayList<>();
        private TempParamAnnotation tempMethodRVPA;
        private TempParamAnnotation tempMethodRIPA;

        private boolean anySyntheticClasses = false;
        private boolean anySyntheticFields = false;
        private boolean anySyntheticMethods = false;
        private final Segment segment;

        private final Map<CPClass, Set<CPClass>> classReferencesInnerClass = new HashMap<>();
        private final boolean stripDebug;

        private int index = 0;

        private int numMethodArgs = 0;
        private int[] class_InnerClasses_N;
        private CPClass[] class_InnerClasses_RC;
        private int[] class_InnerClasses_F;
        private List<CPClass> classInnerClassesOuterRCN;
        private List<CPUTF8> classInnerClassesNameRUN;

        public ClassBands(final Segment segment, final int numClasses, final int effort, final boolean stripDebug)
                        throws IOException {
                super(effort, segment.getSegmentHeader());
                this.stripDebug = stripDebug;
                this.segment = segment;
                this.cpBands = segment.getCpBands();
                this.attrBands = segment.getAttrBands();
                class_this = new CPClass[numClasses];
                class_super = new CPClass[numClasses];
                class_interface_count = new int[numClasses];
                class_interface = new CPClass[numClasses][];
                class_field_count = new int[numClasses];
                class_method_count = new int[numClasses];
                field_descr = new CPNameAndType[numClasses][];
                field_flags = new long[numClasses][];
                method_descr = new CPNameAndType[numClasses][];
                method_flags = new long[numClasses][];
                for (int i = 0; i < numClasses; i++) {
                        field_flags[i] = new long[0];
                        method_flags[i] = new long[0];
                }
                // minor_versions = new int[numClasses];
                major_versions = new int[numClasses];
                class_flags = new long[numClasses];

                class_RVA_bands = new MetadataBandGroup("RVA", MetadataBandGroup.CONTEXT_CLASS, cpBands, segmentHeader, effort);
                class_RIA_bands = new MetadataBandGroup("RIA", MetadataBandGroup.CONTEXT_CLASS, cpBands, segmentHeader, effort);
                field_RVA_bands = new MetadataBandGroup("RVA", MetadataBandGroup.CONTEXT_FIELD, cpBands, segmentHeader, effort);
                field_RIA_bands = new MetadataBandGroup("RIA", MetadataBandGroup.CONTEXT_FIELD, cpBands, segmentHeader, effort);
                method_RVA_bands = new MetadataBandGroup("RVA", MetadataBandGroup.CONTEXT_METHOD, cpBands, segmentHeader,
                                effort);
                method_RIA_bands = new MetadataBandGroup("RIA", MetadataBandGroup.CONTEXT_METHOD, cpBands, segmentHeader,
                                effort);
                method_RVPA_bands = new MetadataBandGroup("RVPA", MetadataBandGroup.CONTEXT_METHOD, cpBands, segmentHeader,
                                effort);
                method_RIPA_bands = new MetadataBandGroup("RIPA", MetadataBandGroup.CONTEXT_METHOD, cpBands, segmentHeader,
                                effort);
                method_AD_bands = new MetadataBandGroup("AD", MetadataBandGroup.CONTEXT_METHOD, cpBands, segmentHeader, effort);

                createNewAttributeBands();
        }

        private void createNewAttributeBands() throws IOException {
                for (AttributeDefinition def : attrBands.getClassAttributeLayouts()) {
                        classAttributeBands.add(new NewAttributeBands(effort, cpBands, segment.getSegmentHeader(), def));
                }
                for (AttributeDefinition def : attrBands.getMethodAttributeLayouts()) {
                        methodAttributeBands.add(new NewAttributeBands(effort, cpBands, segment.getSegmentHeader(), def));
                }
                for (AttributeDefinition def : attrBands.getFieldAttributeLayouts()) {
                        fieldAttributeBands.add(new NewAttributeBands(effort, cpBands, segment.getSegmentHeader(), def));
                }
                for (AttributeDefinition def : attrBands.getCodeAttributeLayouts()) {
                        codeAttributeBands.add(new NewAttributeBands(effort, cpBands, segment.getSegmentHeader(), def));
                }
        }

        public void addClass(final int major, int flags, final String className, final String signature,
                        final String superName, final String[] interfaces) {
                class_this[index] = cpBands.getCPClass(className);
                class_super[index] = cpBands.getCPClass(superName);
                class_interface_count[index] = interfaces.length;
                class_interface[index] = new CPClass[interfaces.length];
        Arrays.setAll(class_interface[index], i -> cpBands.getCPClass(interfaces[i]));
                major_versions[index] = major;
                class_flags[index] = flags;
                if (!anySyntheticClasses && ((flags & (1 << 12)) != 0)
                                && segment.getCurrentClassReader().hasSyntheticAttributes()) {
                        cpBands.addCPUtf8("Synthetic");
                        anySyntheticClasses = true;
                }
                if ((flags & Opcodes.ACC_DEPRECATED) != 0) { // ASM uses (1<<17) flag for deprecated
                        flags = flags & ~Opcodes.ACC_DEPRECATED;
                        flags = flags | (1 << 20);
                }
                if (signature != null) {
                        class_flags[index] |= (1 << 19);
                        classSignature.add(cpBands.getCPSignature(signature));
                }
        }

        public void currentClassReferencesInnerClass(final CPClass inner) {
                if (!(index >= class_this.length)) {
                        final CPClass currentClass = class_this[index];
                        if (currentClass != null && !currentClass.equals(inner)
                                        && !isInnerClassOf(currentClass.toString(), inner)) {
                                Set<CPClass> referencedInnerClasses = classReferencesInnerClass.get(currentClass);
                                if (referencedInnerClasses == null) {
                                        referencedInnerClasses = new HashSet<>();
                                        classReferencesInnerClass.put(currentClass, referencedInnerClasses);
                                }
                                referencedInnerClasses.add(inner);
                        }
                }
        }

        private boolean isInnerClassOf(final String possibleInner, final CPClass possibleOuter) {
                if (isInnerClass(possibleInner)) {
                        final String superClassName = possibleInner.substring(0, possibleInner.lastIndexOf('$'));
                        if (superClassName.equals(possibleOuter.toString())) {
                                return true;
                        }
                        return isInnerClassOf(superClassName, possibleOuter);
                }
                return false;
        }

        private boolean isInnerClass(final String possibleInner) {
                return possibleInner.indexOf('$') != -1;
        }

        public void addField(int flags, final String name, final String desc, final String signature, final Object value) {
                flags = flags & 0xFFFF;
                tempFieldDesc.add(cpBands.getCPNameAndType(name, desc));
                if (signature != null) {
                        fieldSignature.add(cpBands.getCPSignature(signature));
                        flags |= (1 << 19);
                }
                if ((flags & Opcodes.ACC_DEPRECATED) != 0) { // ASM uses (1<<17) flag for deprecated
                        flags = flags & ~Opcodes.ACC_DEPRECATED;
                        flags = flags | (1 << 20);
                }
                if (value != null) {
                        fieldConstantValueKQ.add(cpBands.getConstant(value));
                        flags |= (1 << 17);
                }
                if (!anySyntheticFields && ((flags & (1 << 12)) != 0)
                                && segment.getCurrentClassReader().hasSyntheticAttributes()) {
                        cpBands.addCPUtf8("Synthetic");
                        anySyntheticFields = true;
                }
                tempFieldFlags.add(Long.valueOf(flags));
        }

        /**
         * All input classes for the segment have now been read in, so this method is
         * called so that this class can calculate/complete anything it could not do
         * while classes were being read.
         */
        public void finaliseBands() {
                final int defaultMajorVersion = segmentHeader.getDefaultMajorVersion();
                for (int i = 0; i < class_flags.length; i++) {
                        final int major = major_versions[i];
                        if (major != defaultMajorVersion) {
                                class_flags[i] |= 1 << 24;
                                classFileVersionMajor.add(major);
                                classFileVersionMinor.add(0);
                        }
                }
                // Calculate code headers
                codeHeaders = new int[codeHandlerCount.size()];
                int removed = 0;
                for (int i = 0; i < codeHeaders.length; i++) {
                        final int numHandlers = codeHandlerCount.get(i - removed);
                        final int maxLocals = codeMaxLocals.get(i - removed);
                        final int maxStack = codeMaxStack.get(i - removed);
                        if (numHandlers == 0) {
                                final int header = maxLocals * 12 + maxStack + 1;
                                if (header < 145 && maxStack < 12) {
                                        codeHeaders[i] = header;
                                }
                        } else if (numHandlers == 1) {
                                final int header = maxLocals * 8 + maxStack + 145;
                                if (header < 209 && maxStack < 8) {
                                        codeHeaders[i] = header;
                                }
                        } else if (numHandlers == 2) {
                                final int header = maxLocals * 7 + maxStack + 209;
                                if (header < 256 && maxStack < 7) {
                                        codeHeaders[i] = header;
                                }
                        }
                        if (codeHeaders[i] != 0) { // Remove the redundant values from
                                                                                // codeHandlerCount, codeMaxLocals and
                                                                                // codeMaxStack
                                codeHandlerCount.remove(i - removed);
                                codeMaxLocals.remove(i - removed);
                                codeMaxStack.remove(i - removed);
                                removed++;
                        } else if (!segment.getSegmentHeader().have_all_code_flags()) {
                                codeFlags.add(Long.valueOf(0));
                        }
                }

                // Compute any required IcLocals
                final IntList innerClassesN = new IntList();
                final List<IcTuple> icLocal = new ArrayList<>();
                for (int i = 0; i < class_this.length; i++) {
                        final CPClass cpClass = class_this[i];
                        final Set<CPClass> referencedInnerClasses = classReferencesInnerClass.get(cpClass);
                        if (referencedInnerClasses != null) {
                                int innerN = 0;
                                final List<IcTuple> innerClasses = segment.getIcBands().getInnerClassesForOuter(cpClass.toString());
                                if (innerClasses != null) {
                                        for (IcTuple element : innerClasses) {
                                                referencedInnerClasses.remove(element.C);
                                        }
                                }
                                for (CPClass inner : referencedInnerClasses) {
                                        final IcTuple icTuple = segment.getIcBands().getIcTuple(inner);
                                        if (icTuple != null && !icTuple.isAnonymous()) {
                                                // should transmit an icLocal entry
                                                icLocal.add(icTuple);
                                                innerN++;
                                        }
                                }
                                if (innerN != 0) {
                                        innerClassesN.add(innerN);
                                        class_flags[i] |= (1 << 23);
                                }
                        }
                }
                class_InnerClasses_N = innerClassesN.toArray();
                class_InnerClasses_RC = new CPClass[icLocal.size()];
                class_InnerClasses_F = new int[icLocal.size()];
                classInnerClassesOuterRCN = new ArrayList<>();
                classInnerClassesNameRUN = new ArrayList<>();
                for (int i = 0; i < class_InnerClasses_RC.length; i++) {
                        final IcTuple icTuple = icLocal.get(i);
                        class_InnerClasses_RC[i] = (icTuple.C);
                        if (icTuple.C2 == null && icTuple.N == null) {
                                class_InnerClasses_F[i] = 0;
                        } else {
                                if (icTuple.F == 0) {
                                        class_InnerClasses_F[i] = 0x00010000;
                                } else {
                                        class_InnerClasses_F[i] = icTuple.F;
                                }
                                classInnerClassesOuterRCN.add(icTuple.C2);
                                classInnerClassesNameRUN.add(icTuple.N);
                        }
                }
                // Calculate any backwards calls from metadata bands
                final IntList classAttrCalls = new IntList();
                final IntList fieldAttrCalls = new IntList();
                final IntList methodAttrCalls = new IntList();
                final IntList codeAttrCalls = new IntList();

                if (class_RVA_bands.hasContent()) {
                        classAttrCalls.add(class_RVA_bands.numBackwardsCalls());
                }
                if (class_RIA_bands.hasContent()) {
                        classAttrCalls.add(class_RIA_bands.numBackwardsCalls());
                }
                if (field_RVA_bands.hasContent()) {
                        fieldAttrCalls.add(field_RVA_bands.numBackwardsCalls());
                }
                if (field_RIA_bands.hasContent()) {
                        fieldAttrCalls.add(field_RIA_bands.numBackwardsCalls());
                }
                if (method_RVA_bands.hasContent()) {
                        methodAttrCalls.add(method_RVA_bands.numBackwardsCalls());
                }
                if (method_RIA_bands.hasContent()) {
                        methodAttrCalls.add(method_RIA_bands.numBackwardsCalls());
                }
                if (method_RVPA_bands.hasContent()) {
                        methodAttrCalls.add(method_RVPA_bands.numBackwardsCalls());
                }
                if (method_RIPA_bands.hasContent()) {
                        methodAttrCalls.add(method_RIPA_bands.numBackwardsCalls());
                }
                if (method_AD_bands.hasContent()) {
                        methodAttrCalls.add(method_AD_bands.numBackwardsCalls());
                }

                // Sort non-predefined attribute bands
                final Comparator<NewAttributeBands> comparator = (arg0, arg1) -> arg0.getFlagIndex() - arg1.getFlagIndex();
                classAttributeBands.sort(comparator);
                methodAttributeBands.sort(comparator);
                fieldAttributeBands.sort(comparator);
                codeAttributeBands.sort(comparator);

                for (NewAttributeBands bands : classAttributeBands) {
                        if (bands.isUsedAtLeastOnce()) {
                                for (int backwardsCallCount : bands.numBackwardsCalls()) {
                                        classAttrCalls.add(backwardsCallCount);
                                }
                        }
                }
                for (NewAttributeBands bands : methodAttributeBands) {
                        if (bands.isUsedAtLeastOnce()) {
                                for (int backwardsCallCount : bands.numBackwardsCalls()) {
                                        methodAttrCalls.add(backwardsCallCount);
                                }
                        }
                }
                for (NewAttributeBands bands : fieldAttributeBands) {
                        if (bands.isUsedAtLeastOnce()) {
                                for (int backwardsCallCount : bands.numBackwardsCalls()) {
                                        fieldAttrCalls.add(backwardsCallCount);
                                }
                        }
                }
                for (NewAttributeBands bands : codeAttributeBands) {
                        if (bands.isUsedAtLeastOnce()) {
                                for (int backwardsCallCount : bands.numBackwardsCalls()) {
                                        codeAttrCalls.add(backwardsCallCount);
                                }
                        }
                }

                class_attr_calls = classAttrCalls.toArray();
                field_attr_calls = fieldAttrCalls.toArray();
                method_attr_calls = methodAttrCalls.toArray();
                code_attr_calls = codeAttrCalls.toArray();
        }

        @Override
        public void pack(final OutputStream out) throws IOException, Pack200Exception {
                PackingUtils.log("Writing class bands...");

                byte[] encodedBand = encodeBandInt("class_this", getInts(class_this), Codec.DELTA5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_this[" + class_this.length + "]");

                encodedBand = encodeBandInt("class_super", getInts(class_super), Codec.DELTA5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_super[" + class_super.length + "]");

                encodedBand = encodeBandInt("class_interface_count", class_interface_count, Codec.DELTA5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_interface_count["
                                + class_interface_count.length + "]");

                final int totalInterfaces = sum(class_interface_count);
                final int[] classInterface = new int[totalInterfaces];
                int k = 0;
                for (CPClass[] element : class_interface) {
                        if (element != null) {
                                for (final CPClass cpClass : element) {
                                        classInterface[k] = cpClass.getIndex();
                                        k++;
                                }
                        }
                }

                encodedBand = encodeBandInt("class_interface", classInterface, Codec.DELTA5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_interface[" + classInterface.length + "]");

                encodedBand = encodeBandInt("class_field_count", class_field_count, Codec.DELTA5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from class_field_count[" + class_field_count.length + "]");

                encodedBand = encodeBandInt("class_method_count", class_method_count, Codec.DELTA5);
                out.write(encodedBand);
                PackingUtils.log(
                                "Wrote " + encodedBand.length + " bytes from class_method_count[" + class_method_count.length + "]");

                final int totalFields = sum(class_field_count);
                final int[] fieldDescr = new int[totalFields];
                k = 0;
                for (int i = 0; i < index; i++) {
                        for (int j = 0; j < field_descr[i].length; j++) {
                                final CPNameAndType descr = field_descr[i][j];
                                fieldDescr[k] = descr.getIndex();
                                k++;
                        }
                }

                encodedBand = encodeBandInt("field_descr", fieldDescr, Codec.DELTA5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from field_descr[" + fieldDescr.length + "]");

                writeFieldAttributeBands(out);

                final int totalMethods = sum(class_method_count);
                final int[] methodDescr = new int[totalMethods];
                k = 0;
                for (int i = 0; i < index; i++) {
                        for (int j = 0; j < method_descr[i].length; j++) {
                                final CPNameAndType descr = method_descr[i][j];
                                methodDescr[k] = descr.getIndex();
                                k++;
                        }
                }

                encodedBand = encodeBandInt("method_descr", methodDescr, Codec.MDELTA5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from method_descr[" + methodDescr.length + "]");

                writeMethodAttributeBands(out);
                writeClassAttributeBands(out);
                writeCodeBands(out);
        }

        private int sum(final int[] ints) {
                int sum = 0;
                for (int j : ints) {
                        sum += j;
                }
                return sum;
        }

        private void writeFieldAttributeBands(final OutputStream out) throws IOException, Pack200Exception {
                byte[] encodedBand = encodeFlags("field_flags", field_flags, Codec.UNSIGNED5, Codec.UNSIGNED5,
                                segmentHeader.have_field_flags_hi());
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from field_flags[" + field_flags.length + "]");

                // *field_attr_count :UNSIGNED5 [COUNT(1<<16,...)]
                // *field_attr_indexes :UNSIGNED5 [SUM(*field_attr_count)]
                encodedBand = encodeBandInt("field_attr_calls", field_attr_calls, Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from field_attr_calls[" + field_attr_calls.length + "]");

                encodedBand = encodeBandInt("fieldConstantValueKQ", cpEntryListToArray(fieldConstantValueKQ), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from fieldConstantValueKQ["
                                + fieldConstantValueKQ.size() + "]");

                encodedBand = encodeBandInt("fieldSignature", cpEntryListToArray(fieldSignature), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from fieldSignature[" + fieldSignature.size() + "]");

                field_RVA_bands.pack(out);
                field_RIA_bands.pack(out);
                for (NewAttributeBands bands : fieldAttributeBands) {
                        bands.pack(out);
                }
        }

        private void writeMethodAttributeBands(final OutputStream out) throws IOException, Pack200Exception {
                byte[] encodedBand = encodeFlags("method_flags", method_flags, Codec.UNSIGNED5, Codec.UNSIGNED5,
                                segmentHeader.have_method_flags_hi());
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from method_flags[" + method_flags.length + "]");

                // *method_attr_count :UNSIGNED5 [COUNT(1<<16,...)]
                // *method_attr_indexes :UNSIGNED5 [SUM(*method_attr_count)]
                encodedBand = encodeBandInt("method_attr_calls", method_attr_calls, Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from method_attr_calls[" + method_attr_calls.length + "]");

                encodedBand = encodeBandInt("methodExceptionNumber", methodExceptionNumber.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from methodExceptionNumber["
                                + methodExceptionNumber.size() + "]");

                encodedBand = encodeBandInt("methodExceptionClasses", cpEntryListToArray(methodExceptionClasses),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from methodExceptionClasses["
                                + methodExceptionClasses.size() + "]");

                encodedBand = encodeBandInt("methodSignature", cpEntryListToArray(methodSignature), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from methodSignature[" + methodSignature.size() + "]");

                method_RVA_bands.pack(out);
                method_RIA_bands.pack(out);
                method_RVPA_bands.pack(out);
                method_RIPA_bands.pack(out);
                method_AD_bands.pack(out);
                for (NewAttributeBands bands : methodAttributeBands) {
                        bands.pack(out);
                }
        }

        private void writeClassAttributeBands(final OutputStream out) throws IOException, Pack200Exception {
                byte[] encodedBand = encodeFlags("class_flags", class_flags, Codec.UNSIGNED5, Codec.UNSIGNED5,
                                segmentHeader.have_class_flags_hi());
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_flags[" + class_flags.length + "]");

                // These bands are not needed, but could be used to reduce the size of
                // the archive if there are enough different non-standard attributes
                // defined that segmentHeader.have_class_flags_hi() is true. The same
                // applies to method_attr_count, field_attr_count, code_attr_count etc.

                // *class_attr_count :UNSIGNED5 [COUNT(1<<16,...)]
                // *class_attr_indexes :UNSIGNED5 [SUM(*class_attr_count)]

                encodedBand = encodeBandInt("class_attr_calls", class_attr_calls, Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from class_attr_calls[" + class_attr_calls.length + "]");

                encodedBand = encodeBandInt("classSourceFile", cpEntryOrNullListToArray(classSourceFile), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from classSourceFile[" + classSourceFile.size() + "]");

                encodedBand = encodeBandInt("class_enclosing_method_RC", cpEntryListToArray(classEnclosingMethodClass),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_enclosing_method_RC["
                                + classEnclosingMethodClass.size() + "]");

                encodedBand = encodeBandInt("class_EnclosingMethod_RDN", cpEntryOrNullListToArray(classEnclosingMethodDesc),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_EnclosingMethod_RDN["
                                + classEnclosingMethodDesc.size() + "]");

                encodedBand = encodeBandInt("class_Signature_RS", cpEntryListToArray(classSignature), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from class_Signature_RS[" + classSignature.size() + "]");

                class_RVA_bands.pack(out);
                class_RIA_bands.pack(out);

                encodedBand = encodeBandInt("class_InnerClasses_N", class_InnerClasses_N, Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_InnerClasses_N["
                                + class_InnerClasses_N.length + "]");

                encodedBand = encodeBandInt("class_InnerClasses_RC", getInts(class_InnerClasses_RC), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_InnerClasses_RC["
                                + class_InnerClasses_RC.length + "]");

                encodedBand = encodeBandInt("class_InnerClasses_F", class_InnerClasses_F, Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_InnerClasses_F["
                                + class_InnerClasses_F.length + "]");

                encodedBand = encodeBandInt("class_InnerClasses_outer_RCN", cpEntryOrNullListToArray(classInnerClassesOuterRCN),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_InnerClasses_outer_RCN["
                                + classInnerClassesOuterRCN.size() + "]");

                encodedBand = encodeBandInt("class_InnerClasses_name_RUN", cpEntryOrNullListToArray(classInnerClassesNameRUN),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from class_InnerClasses_name_RUN["
                                + classInnerClassesNameRUN.size() + "]");

                encodedBand = encodeBandInt("classFileVersionMinor", classFileVersionMinor.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from classFileVersionMinor["
                                + classFileVersionMinor.size() + "]");

                encodedBand = encodeBandInt("classFileVersionMajor", classFileVersionMajor.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from classFileVersionMajor["
                                + classFileVersionMajor.size() + "]");

                for (NewAttributeBands classAttributeBand : classAttributeBands) {
                        classAttributeBand.pack(out);
                }
        }

        private int[] getInts(final CPClass[] cpClasses) {
                final int[] ints = new int[cpClasses.length];
                for (int i = 0; i < ints.length; i++) {
                        if (cpClasses[i] != null) {
                                ints[i] = cpClasses[i].getIndex();
                        }
                }
                return ints;
        }

        private void writeCodeBands(final OutputStream out) throws IOException, Pack200Exception {
                byte[] encodedBand = encodeBandInt("codeHeaders", codeHeaders, Codec.BYTE1);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from codeHeaders[" + codeHeaders.length + "]");

                encodedBand = encodeBandInt("codeMaxStack", codeMaxStack.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from codeMaxStack[" + codeMaxStack.size() + "]");

                encodedBand = encodeBandInt("codeMaxLocals", codeMaxLocals.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from codeMaxLocals[" + codeMaxLocals.size() + "]");

                encodedBand = encodeBandInt("codeHandlerCount", codeHandlerCount.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from codeHandlerCount[" + codeHandlerCount.size() + "]");

                encodedBand = encodeBandInt("codeHandlerStartP", integerListToArray(codeHandlerStartP), Codec.BCI5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from codeHandlerStartP[" + codeHandlerStartP.size() + "]");

                encodedBand = encodeBandInt("codeHandlerEndPO", integerListToArray(codeHandlerEndPO), Codec.BRANCH5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from codeHandlerEndPO[" + codeHandlerEndPO.size() + "]");

                encodedBand = encodeBandInt("codeHandlerCatchPO", integerListToArray(codeHandlerCatchPO), Codec.BRANCH5);
                out.write(encodedBand);
                PackingUtils.log(
                                "Wrote " + encodedBand.length + " bytes from codeHandlerCatchPO[" + codeHandlerCatchPO.size() + "]");

                encodedBand = encodeBandInt("codeHandlerClass", cpEntryOrNullListToArray(codeHandlerClass), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils
                                .log("Wrote " + encodedBand.length + " bytes from codeHandlerClass[" + codeHandlerClass.size() + "]");

                writeCodeAttributeBands(out);
        }

        private void writeCodeAttributeBands(final OutputStream out) throws IOException, Pack200Exception {
                byte[] encodedBand = encodeFlags("codeFlags", longListToArray(codeFlags), Codec.UNSIGNED5, Codec.UNSIGNED5,
                                segmentHeader.have_code_flags_hi());
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from codeFlags[" + codeFlags.size() + "]");

                // *code_attr_count :UNSIGNED5 [COUNT(1<<16,...)]
                // *code_attr_indexes :UNSIGNED5 [SUM(*code_attr_count)]
                encodedBand = encodeBandInt("code_attr_calls", code_attr_calls, Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_attr_calls[" + code_attr_calls.length + "]");

                encodedBand = encodeBandInt("code_LineNumberTable_N", codeLineNumberTableN.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LineNumberTable_N["
                                + codeLineNumberTableN.size() + "]");

                encodedBand = encodeBandInt("code_LineNumberTable_bci_P", integerListToArray(codeLineNumberTableBciP),
                                Codec.BCI5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LineNumberTable_bci_P["
                                + codeLineNumberTableBciP.size() + "]");

                encodedBand = encodeBandInt("code_LineNumberTable_line", codeLineNumberTableLine.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LineNumberTable_line["
                                + codeLineNumberTableLine.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTable_N", codeLocalVariableTableN.toArray(), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTable_N["
                                + codeLocalVariableTableN.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTable_bci_P", integerListToArray(codeLocalVariableTableBciP),
                                Codec.BCI5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTable_bci_P["
                                + codeLocalVariableTableBciP.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTable_span_O", integerListToArray(codeLocalVariableTableSpanO),
                                Codec.BRANCH5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTable_span_O["
                                + codeLocalVariableTableSpanO.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTable_name_RU", cpEntryListToArray(codeLocalVariableTableNameRU),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTable_name_RU["
                                + codeLocalVariableTableNameRU.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTable_type_RS", cpEntryListToArray(codeLocalVariableTableTypeRS),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTable_type_RS["
                                + codeLocalVariableTableTypeRS.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTable_slot", codeLocalVariableTableSlot.toArray(),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTable_slot["
                                + codeLocalVariableTableSlot.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTypeTable_N", codeLocalVariableTypeTableN.toArray(),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTypeTable_N["
                                + codeLocalVariableTypeTableN.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTypeTable_bci_P",
                                integerListToArray(codeLocalVariableTypeTableBciP), Codec.BCI5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTypeTable_bci_P["
                                + codeLocalVariableTypeTableBciP.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTypeTable_span_O",
                                integerListToArray(codeLocalVariableTypeTableSpanO), Codec.BRANCH5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTypeTable_span_O["
                                + codeLocalVariableTypeTableSpanO.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTypeTable_name_RU",
                                cpEntryListToArray(codeLocalVariableTypeTableNameRU), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTypeTable_name_RU["
                                + codeLocalVariableTypeTableNameRU.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTypeTable_type_RS",
                                cpEntryListToArray(codeLocalVariableTypeTableTypeRS), Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTypeTable_type_RS["
                                + codeLocalVariableTypeTableTypeRS.size() + "]");

                encodedBand = encodeBandInt("code_LocalVariableTypeTable_slot", codeLocalVariableTypeTableSlot.toArray(),
                                Codec.UNSIGNED5);
                out.write(encodedBand);
                PackingUtils.log("Wrote " + encodedBand.length + " bytes from code_LocalVariableTypeTable_slot["
                                + codeLocalVariableTypeTableSlot.size() + "]");

                for (NewAttributeBands bands : codeAttributeBands) {
                        bands.pack(out);
                }
        }

        public void addMethod(int flags, final String name, final String desc, final String signature,
                        final String[] exceptions) {
                final CPNameAndType nt = cpBands.getCPNameAndType(name, desc);
                tempMethodDesc.add(nt);
                if (signature != null) {
                        methodSignature.add(cpBands.getCPSignature(signature));
                        flags |= (1 << 19);
                }
                if (exceptions != null) {
                        methodExceptionNumber.add(exceptions.length);
                        for (String exception : exceptions) {
                                methodExceptionClasses.add(cpBands.getCPClass(exception));
                        }
                        flags |= (1 << 18);
                }
                if ((flags & Opcodes.ACC_DEPRECATED) != 0) { // ASM uses (1<<17) flag for deprecated
                        flags = flags & ~Opcodes.ACC_DEPRECATED;
                        flags = flags | (1 << 20);
                }
                tempMethodFlags.add(Long.valueOf(flags));
                numMethodArgs = countArgs(desc);
                if (!anySyntheticMethods && ((flags & (1 << 12)) != 0)
                                && segment.getCurrentClassReader().hasSyntheticAttributes()) {
                        cpBands.addCPUtf8("Synthetic");
                        anySyntheticMethods = true;
                }
        }

        public void endOfMethod() {
                if (tempMethodRVPA != null) {
                        method_RVPA_bands.addParameterAnnotation(tempMethodRVPA.numParams, tempMethodRVPA.annoN,
                                        tempMethodRVPA.pairN, tempMethodRVPA.typeRS, tempMethodRVPA.nameRU, tempMethodRVPA.tags,
                                        tempMethodRVPA.values, tempMethodRVPA.caseArrayN, tempMethodRVPA.nestTypeRS,
                                        tempMethodRVPA.nestNameRU, tempMethodRVPA.nestPairN);
                        tempMethodRVPA = null;
                }
                if (tempMethodRIPA != null) {
                        method_RIPA_bands.addParameterAnnotation(tempMethodRIPA.numParams, tempMethodRIPA.annoN,
                                        tempMethodRIPA.pairN, tempMethodRIPA.typeRS, tempMethodRIPA.nameRU, tempMethodRIPA.tags,
                                        tempMethodRIPA.values, tempMethodRIPA.caseArrayN, tempMethodRIPA.nestTypeRS,
                                        tempMethodRIPA.nestNameRU, tempMethodRIPA.nestPairN);
                        tempMethodRIPA = null;
                }
                if (codeFlags.size() > 0) {
                        final long latestCodeFlag = codeFlags.get(codeFlags.size() - 1).longValue();
                        final int latestLocalVariableTableN = codeLocalVariableTableN.get(codeLocalVariableTableN.size() - 1);
                        if (latestCodeFlag == (1 << 2) && latestLocalVariableTableN == 0) {
                                codeLocalVariableTableN.remove(codeLocalVariableTableN.size() - 1);
                                codeFlags.remove(codeFlags.size() - 1);
                                codeFlags.add(Long.valueOf(0));
                        }
                }
        }

        protected static int countArgs(final String descriptor) {
                final int bra = descriptor.indexOf('(');
                final int ket = descriptor.indexOf(')');
                if (bra == -1 || ket == -1 || ket < bra) {
                        throw new IllegalArgumentException("No arguments");
                }

                boolean inType = false;
                boolean consumingNextType = false;
                int count = 0;
                for (int i = bra + 1; i < ket; i++) {
                        final char charAt = descriptor.charAt(i);
                        if (inType && charAt == ';') {
                                inType = false;
                                consumingNextType = false;
                        } else if (!inType && charAt == 'L') {
                                inType = true;
                                count++;
                        } else if (charAt == '[') {
                                consumingNextType = true;
                        } else if (inType) {
                                // NOP
                        } else if (consumingNextType) {
                                count++;
                                consumingNextType = false;
                        } else if (charAt == 'D' || charAt == 'J') {
                                count += 2;
                        } else {
                                count++;
                        }
                }
                return count;
        }

        public void endOfClass() { // All the data for the current class has been
                                                                // read
                final int numFields = tempFieldDesc.size();
                class_field_count[index] = numFields;
                field_descr[index] = new CPNameAndType[numFields];
                field_flags[index] = new long[numFields];
                for (int i = 0; i < numFields; i++) {
                        field_descr[index][i] = tempFieldDesc.get(i);
                        field_flags[index][i] = tempFieldFlags.get(i).longValue();
                }
                final int numMethods = tempMethodDesc.size();
                class_method_count[index] = numMethods;
                method_descr[index] = new CPNameAndType[numMethods];
                method_flags[index] = new long[numMethods];
                for (int i = 0; i < numMethods; i++) {
                        method_descr[index][i] = tempMethodDesc.get(i);
                        method_flags[index][i] = tempMethodFlags.get(i).longValue();
                }
                tempFieldDesc.clear();
                tempFieldFlags.clear();
                tempMethodDesc.clear();
                tempMethodFlags.clear();
                index++;
        }

        public void addSourceFile(final String source) {
                String implicitSourceFileName = class_this[index].toString();
                if (implicitSourceFileName.indexOf('$') != -1) {
                        implicitSourceFileName = implicitSourceFileName.substring(0, implicitSourceFileName.indexOf('$'));
                }
                implicitSourceFileName = implicitSourceFileName.substring(implicitSourceFileName.lastIndexOf('/') + 1)
                                + ".java";
                if (source.equals(implicitSourceFileName)) {
                        classSourceFile.add(null);
                } else {
                        classSourceFile.add(cpBands.getCPUtf8(source));
                }
                class_flags[index] |= (1 << 17);
        }

        public void addEnclosingMethod(final String owner, final String name, final String desc) {
                class_flags[index] |= (1 << 18);
                classEnclosingMethodClass.add(cpBands.getCPClass(owner));
                classEnclosingMethodDesc.add(name == null ? null : cpBands.getCPNameAndType(name, desc));
        }

        public void addClassAttribute(final NewAttribute attribute) {
                // TODO: backwards calls
                final String attributeName = attribute.type;
                for (NewAttributeBands bands : classAttributeBands) {
                        if (bands.getAttributeName().equals(attributeName)) {
                                bands.addAttribute(attribute);
                                final int flagIndex = bands.getFlagIndex();
                                class_flags[index] |= (1 << flagIndex);
                                return;
                        }
                }
                throw new IllegalArgumentException("No suitable definition for " + attributeName);
        }

        public void addFieldAttribute(final NewAttribute attribute) {
                final String attributeName = attribute.type;
                for (NewAttributeBands bands : fieldAttributeBands) {
                        if (bands.getAttributeName().equals(attributeName)) {
                                bands.addAttribute(attribute);
                                final int flagIndex = bands.getFlagIndex();
                                final Long flags = tempFieldFlags.remove(tempFieldFlags.size() - 1);
                                tempFieldFlags.add(Long.valueOf(flags.longValue() | (1 << flagIndex)));
                                return;
                        }
                }
                throw new IllegalArgumentException("No suitable definition for " + attributeName);
        }

        public void addMethodAttribute(final NewAttribute attribute) {
                final String attributeName = attribute.type;
                for (NewAttributeBands bands : methodAttributeBands) {
                        if (bands.getAttributeName().equals(attributeName)) {
                                bands.addAttribute(attribute);
                                final int flagIndex = bands.getFlagIndex();
                                final Long flags = tempMethodFlags.remove(tempMethodFlags.size() - 1);
                                tempMethodFlags.add(Long.valueOf(flags.longValue() | (1 << flagIndex)));
                                return;
                        }
                }
                throw new IllegalArgumentException("No suitable definition for " + attributeName);
        }

        public void addCodeAttribute(final NewAttribute attribute) {
                final String attributeName = attribute.type;
                for (NewAttributeBands bands : codeAttributeBands) {
                        if (bands.getAttributeName().equals(attributeName)) {
                                bands.addAttribute(attribute);
                                final int flagIndex = bands.getFlagIndex();
                                final Long flags = codeFlags.remove(codeFlags.size() - 1);
                                codeFlags.add(Long.valueOf(flags.longValue() | (1 << flagIndex)));
                                return;
                        }
                }
                throw new IllegalArgumentException("No suitable definition for " + attributeName);
        }

        public void addMaxStack(final int maxStack, int maxLocals) {
                final Long latestFlag = tempMethodFlags.remove(tempMethodFlags.size() - 1);
                final Long newFlag = Long.valueOf(latestFlag.intValue() | (1 << 17));
                tempMethodFlags.add(newFlag);
                codeMaxStack.add(maxStack);
                if ((newFlag.longValue() & (1 << 3)) == 0) { // not static
                        maxLocals--; // minus 'this' local
                }
                maxLocals -= numMethodArgs;
                codeMaxLocals.add(maxLocals);
        }

        public void addCode() {
                codeHandlerCount.add(0);
                if (!stripDebug) {
                        codeFlags.add(Long.valueOf(1 << 2));
                        codeLocalVariableTableN.add(0);
                }
        }

        public void addHandler(final Label start, final Label end, final Label handler, final String type) {
                final int handlers = codeHandlerCount.remove(codeHandlerCount.size() - 1);
                codeHandlerCount.add(handlers + 1);
                codeHandlerStartP.add(start);
                codeHandlerEndPO.add(end);
                codeHandlerCatchPO.add(handler);
                codeHandlerClass.add(type == null ? null : cpBands.getCPClass(type));
        }

        public void addLineNumber(final int line, final Label start) {
                final Long latestCodeFlag = codeFlags.get(codeFlags.size() - 1);
                if ((latestCodeFlag.intValue() & (1 << 1)) == 0) {
                        codeFlags.remove(codeFlags.size() - 1);
                        codeFlags.add(Long.valueOf(latestCodeFlag.intValue() | (1 << 1)));
                        codeLineNumberTableN.add(1);
                } else {
                        codeLineNumberTableN.increment(codeLineNumberTableN.size() - 1);
                }
                codeLineNumberTableLine.add(line);
                codeLineNumberTableBciP.add(start);
        }

        public void addLocalVariable(final String name, final String desc, final String signature, final Label start,
                        final Label end, final int indx) {
                if (signature != null) { // LocalVariableTypeTable attribute
                        final Long latestCodeFlag = codeFlags.get(codeFlags.size() - 1);
                        if ((latestCodeFlag.intValue() & (1 << 3)) == 0) {
                                codeFlags.remove(codeFlags.size() - 1);
                                codeFlags.add(Long.valueOf(latestCodeFlag.intValue() | (1 << 3)));
                                codeLocalVariableTypeTableN.add(1);
                        } else {
                                codeLocalVariableTypeTableN.increment(codeLocalVariableTypeTableN.size() - 1);
                        }
                        codeLocalVariableTypeTableBciP.add(start);
                        codeLocalVariableTypeTableSpanO.add(end);
                        codeLocalVariableTypeTableNameRU.add(cpBands.getCPUtf8(name));
                        codeLocalVariableTypeTableTypeRS.add(cpBands.getCPSignature(signature));
                        codeLocalVariableTypeTableSlot.add(indx);
                }
                // LocalVariableTable attribute
                codeLocalVariableTableN.increment(codeLocalVariableTableN.size() - 1);
                codeLocalVariableTableBciP.add(start);
                codeLocalVariableTableSpanO.add(end);
                codeLocalVariableTableNameRU.add(cpBands.getCPUtf8(name));
                codeLocalVariableTableTypeRS.add(cpBands.getCPSignature(desc));
                codeLocalVariableTableSlot.add(indx);
        }

        public void doBciRenumbering(final IntList bciRenumbering, final Map<Label, Integer> labelsToOffsets) {
                renumberBci(codeLineNumberTableBciP, bciRenumbering, labelsToOffsets);
                renumberBci(codeLocalVariableTableBciP, bciRenumbering, labelsToOffsets);
                renumberOffsetBci(codeLocalVariableTableBciP, codeLocalVariableTableSpanO, bciRenumbering, labelsToOffsets);
                renumberBci(codeLocalVariableTypeTableBciP, bciRenumbering, labelsToOffsets);
                renumberOffsetBci(codeLocalVariableTypeTableBciP, codeLocalVariableTypeTableSpanO, bciRenumbering,
                                labelsToOffsets);
                renumberBci(codeHandlerStartP, bciRenumbering, labelsToOffsets);
                renumberOffsetBci(codeHandlerStartP, codeHandlerEndPO, bciRenumbering, labelsToOffsets);
                renumberDoubleOffsetBci(codeHandlerStartP, codeHandlerEndPO, codeHandlerCatchPO, bciRenumbering,
                                labelsToOffsets);

                for (NewAttributeBands newAttributeBandSet : classAttributeBands) {
                        newAttributeBandSet.renumberBci(bciRenumbering, labelsToOffsets);
                }
                for (NewAttributeBands newAttributeBandSet : methodAttributeBands) {
                        newAttributeBandSet.renumberBci(bciRenumbering, labelsToOffsets);
                }
                for (NewAttributeBands newAttributeBandSet : fieldAttributeBands) {
                        newAttributeBandSet.renumberBci(bciRenumbering, labelsToOffsets);
                }
                for (NewAttributeBands newAttributeBandSet : codeAttributeBands) {
                        newAttributeBandSet.renumberBci(bciRenumbering, labelsToOffsets);
                }
        }

        private void renumberBci(final List<Integer> list, final IntList bciRenumbering,
                        final Map<Label, Integer> labelsToOffsets) {
                for (int i = list.size() - 1; i >= 0; i--) {
                        final Object label = list.get(i);
                        if (label instanceof Integer) {
                                break;
                        }
                        if (label instanceof Label) {
                                list.remove(i);
                                final Integer bytecodeIndex = labelsToOffsets.get(label);
                                list.add(i, Integer.valueOf(bciRenumbering.get(bytecodeIndex.intValue())));
                        }
                }
        }

        private void renumberOffsetBci(final List<Integer> relative, final List<Integer> list, final IntList bciRenumbering,
                        final Map<Label, Integer> labelsToOffsets) {
                for (int i = list.size() - 1; i >= 0; i--) {
                        final Object label = list.get(i);
                        if (label instanceof Integer) {
                                break;
                        }
                        if (label instanceof Label) {
                                list.remove(i);
                                final Integer bytecodeIndex = labelsToOffsets.get(label);
                                final Integer renumberedOffset = Integer
                                                .valueOf(bciRenumbering.get(bytecodeIndex.intValue()) - relative.get(i).intValue());
                                list.add(i, renumberedOffset);
                        }
                }
        }

        private void renumberDoubleOffsetBci(final List<Integer> relative, final List<Integer> firstOffset, final List<Object> list,
                        final IntList bciRenumbering, final Map<Label, Integer> labelsToOffsets) {
                // TODO: There's probably a nicer way of doing this...
                for (int i = list.size() - 1; i >= 0; i--) {
                        final Object label = list.get(i);
                        if (label instanceof Integer) {
                                break;
                        }
                        if (label instanceof Label) {
                                list.remove(i);
                                final Integer bytecodeIndex = labelsToOffsets.get(label);
                                final Integer renumberedOffset = Integer.valueOf(bciRenumbering.get(bytecodeIndex.intValue())
                                                - relative.get(i).intValue() - firstOffset.get(i).intValue());
                                list.add(i, renumberedOffset);
                        }
                }
        }

        public boolean isAnySyntheticClasses() {
                return anySyntheticClasses;
        }

        public boolean isAnySyntheticFields() {
                return anySyntheticFields;
        }

        public boolean isAnySyntheticMethods() {
                return anySyntheticMethods;
        }

        public void addParameterAnnotation(final int parameter, final String desc, final boolean visible,
                        final List<String> nameRU, final List<String> tags, final List<Object> values,
                        final List<Integer> caseArrayN, final List<String> nestTypeRS, final List<String> nestNameRU,
                        final List<Integer> nestPairN) {
                if (visible) {
                        if (tempMethodRVPA == null) {
                                tempMethodRVPA = new TempParamAnnotation(numMethodArgs);
                                tempMethodRVPA.addParameterAnnotation(parameter, desc, nameRU, tags, values, caseArrayN, nestTypeRS,
                                                nestNameRU, nestPairN);
                        }
                        final Long flag = tempMethodFlags.remove(tempMethodFlags.size() - 1);
                        tempMethodFlags.add(Long.valueOf(flag.longValue() | (1 << 23)));
                } else {
                        if (tempMethodRIPA == null) {
                                tempMethodRIPA = new TempParamAnnotation(numMethodArgs);
                                tempMethodRIPA.addParameterAnnotation(parameter, desc, nameRU, tags, values, caseArrayN, nestTypeRS,
                                                nestNameRU, nestPairN);
                        }
                        final Long flag = tempMethodFlags.remove(tempMethodFlags.size() - 1);
                        tempMethodFlags.add(Long.valueOf(flag.longValue() | (1 << 24)));
                }
        }

        private static class TempParamAnnotation {

                int numParams;
                int[] annoN;
                IntList pairN = new IntList();
                List<String> typeRS = new ArrayList<>();
                List<String> nameRU = new ArrayList<>();
                List<String> tags = new ArrayList<>();
                List<Object> values = new ArrayList<>();
                List<Integer> caseArrayN = new ArrayList<>();
                List<String> nestTypeRS = new ArrayList<>();
                List<String> nestNameRU = new ArrayList<>();
                List<Integer> nestPairN = new ArrayList<>();

                public TempParamAnnotation(final int numParams) {
                        this.numParams = numParams;
                        annoN = new int[numParams];
                }

                public void addParameterAnnotation(final int parameter, final String desc, final List<String> nameRU,
                                final List<String> tags, final List<Object> values, final List<Integer> caseArrayN,
                                final List<String> nestTypeRS, final List<String> nestNameRU, final List<Integer> nestPairN) {
                        annoN[parameter]++;
                        typeRS.add(desc);
                        pairN.add(nameRU.size());
                        this.nameRU.addAll(nameRU);
                        this.tags.addAll(tags);
                        this.values.addAll(values);
                        this.caseArrayN.addAll(caseArrayN);
                        this.nestTypeRS.addAll(nestTypeRS);
                        this.nestNameRU.addAll(nestNameRU);
                        this.nestPairN.addAll(nestPairN);
                }
        }

        public void addAnnotation(final int context, final String desc, final boolean visible, final List<String> nameRU,
                        final List<String> tags, final List<Object> values, final List<Integer> caseArrayN, final List<String> nestTypeRS,
                        final List<String> nestNameRU, final List<Integer> nestPairN) {
                switch (context) {
                case MetadataBandGroup.CONTEXT_CLASS:
                        if (visible) {
                                class_RVA_bands.addAnnotation(desc, nameRU, tags, values, caseArrayN, nestTypeRS, nestNameRU,
                                                nestPairN);
                                if ((class_flags[index] & (1 << 21)) != 0) {
                                        class_RVA_bands.incrementAnnoN();
                                } else {
                                        class_RVA_bands.newEntryInAnnoN();
                                        class_flags[index] = class_flags[index] | (1 << 21);
                                }
                        } else {
                                class_RIA_bands.addAnnotation(desc, nameRU, tags, values, caseArrayN, nestTypeRS, nestNameRU,
                                                nestPairN);
                                if ((class_flags[index] & (1 << 22)) != 0) {
                                        class_RIA_bands.incrementAnnoN();
                                } else {
                                        class_RIA_bands.newEntryInAnnoN();
                                        class_flags[index] = class_flags[index] | (1 << 22);
                                }
                        }
                        break;
                case MetadataBandGroup.CONTEXT_FIELD:
                        if (visible) {
                                field_RVA_bands.addAnnotation(desc, nameRU, tags, values, caseArrayN, nestTypeRS, nestNameRU,
                                                nestPairN);
                                final Long flag = tempFieldFlags.remove(tempFieldFlags.size() - 1);
                                if ((flag.intValue() & (1 << 21)) != 0) {
                                        field_RVA_bands.incrementAnnoN();
                                } else {
                                        field_RVA_bands.newEntryInAnnoN();
                                }
                                tempFieldFlags.add(Long.valueOf(flag.intValue() | (1 << 21)));
                        } else {
                                field_RIA_bands.addAnnotation(desc, nameRU, tags, values, caseArrayN, nestTypeRS, nestNameRU,
                                                nestPairN);
                                final Long flag = tempFieldFlags.remove(tempFieldFlags.size() - 1);
                                if ((flag.intValue() & (1 << 22)) != 0) {
                                        field_RIA_bands.incrementAnnoN();
                                } else {
                                        field_RIA_bands.newEntryInAnnoN();
                                }
                                tempFieldFlags.add(Long.valueOf(flag.intValue() | (1 << 22)));
                        }
                        break;
                case MetadataBandGroup.CONTEXT_METHOD:
                        if (visible) {
                                method_RVA_bands.addAnnotation(desc, nameRU, tags, values, caseArrayN, nestTypeRS, nestNameRU,
                                                nestPairN);
                                final Long flag = tempMethodFlags.remove(tempMethodFlags.size() - 1);
                                if ((flag.intValue() & (1 << 21)) != 0) {
                                        method_RVA_bands.incrementAnnoN();
                                } else {
                                        method_RVA_bands.newEntryInAnnoN();
                                }
                                tempMethodFlags.add(Long.valueOf(flag.intValue() | (1 << 21)));
                        } else {
                                method_RIA_bands.addAnnotation(desc, nameRU, tags, values, caseArrayN, nestTypeRS, nestNameRU,
                                                nestPairN);
                                final Long flag = tempMethodFlags.remove(tempMethodFlags.size() - 1);
                                if ((flag.intValue() & (1 << 22)) != 0) {
                                        method_RIA_bands.incrementAnnoN();
                                } else {
                                        method_RIA_bands.newEntryInAnnoN();
                                }
                                tempMethodFlags.add(Long.valueOf(flag.intValue() | (1 << 22)));
                        }
                        break;
                }
        }

        public void addAnnotationDefault(final List<String> nameRU, final List<String> tags, final List<Object> values,
                        final List<Integer> caseArrayN, final List<String> nestTypeRS, final List<String> nestNameRU,
                        final List<Integer> nestPairN) {
                method_AD_bands.addAnnotation(null, nameRU, tags, values, caseArrayN, nestTypeRS, nestNameRU, nestPairN);
                final Long flag = tempMethodFlags.remove(tempMethodFlags.size() - 1);
                tempMethodFlags.add(Long.valueOf(flag.longValue() | (1 << 25)));
        }

        /**
         * Remove all entries for the current class
         */
        public void removeCurrentClass() {
                // Note - this doesn't remove any entries added to the constant pool but
                // that shouldn't be a problem
                if ((class_flags[index] & (1 << 17)) != 0) {
                        classSourceFile.remove(classSourceFile.size() - 1);
                }
                if ((class_flags[index] & (1 << 18)) != 0) {
                        classEnclosingMethodClass.remove(classEnclosingMethodClass.size() - 1);
                        classEnclosingMethodDesc.remove(classEnclosingMethodDesc.size() - 1);
                }
                if ((class_flags[index] & (1 << 19)) != 0) {
                        classSignature.remove(classSignature.size() - 1);
                }
                if ((class_flags[index] & (1 << 21)) != 0) {
                        class_RVA_bands.removeLatest();
                }
                if ((class_flags[index] & (1 << 22)) != 0) {
                        class_RIA_bands.removeLatest();
                }
                for (Long flagsL : tempFieldFlags) {
                        final long flags = flagsL.longValue();
                        if ((flags & (1 << 19)) != 0) {
                                fieldSignature.remove(fieldSignature.size() - 1);
                        }
                        if ((flags & (1 << 17)) != 0) {
                                fieldConstantValueKQ.remove(fieldConstantValueKQ.size() - 1);
                        }
                        if ((flags & (1 << 21)) != 0) {
                                field_RVA_bands.removeLatest();
                        }
                        if ((flags & (1 << 22)) != 0) {
                                field_RIA_bands.removeLatest();
                        }
                }
                for (Long flagsL : tempMethodFlags) {
                        final long flags = flagsL.longValue();
                        if ((flags & (1 << 19)) != 0) {
                                methodSignature.remove(methodSignature.size() - 1);
                        }
                        if ((flags & (1 << 18)) != 0) {
                                final int exceptions = methodExceptionNumber.remove(methodExceptionNumber.size() - 1);
                                for (int i = 0; i < exceptions; i++) {
                                        methodExceptionClasses.remove(methodExceptionClasses.size() - 1);
                                }
                        }
                        if ((flags & (1 << 17)) != 0) { // has code attribute
                                codeMaxLocals.remove(codeMaxLocals.size() - 1);
                                codeMaxStack.remove(codeMaxStack.size() - 1);
                                final int handlers = codeHandlerCount.remove(codeHandlerCount.size() - 1);
                                for (int i = 0; i < handlers; i++) {
                                        final int index = codeHandlerStartP.size() - 1;
                                        codeHandlerStartP.remove(index);
                                        codeHandlerEndPO.remove(index);
                                        codeHandlerCatchPO.remove(index);
                                        codeHandlerClass.remove(index);
                                }
                                if (!stripDebug) {
                                        final long cdeFlags = codeFlags.remove(codeFlags.size() - 1).longValue();
                                        final int numLocalVariables = codeLocalVariableTableN.remove(codeLocalVariableTableN.size() - 1);
                                        for (int i = 0; i < numLocalVariables; i++) {
                                                final int location = codeLocalVariableTableBciP.size() - 1;
                                                codeLocalVariableTableBciP.remove(location);
                                                codeLocalVariableTableSpanO.remove(location);
                                                codeLocalVariableTableNameRU.remove(location);
                                                codeLocalVariableTableTypeRS.remove(location);
                                                codeLocalVariableTableSlot.remove(location);
                                        }
                                        if ((cdeFlags & (1 << 3)) != 0) {
                                                final int numLocalVariablesInTypeTable = codeLocalVariableTypeTableN
                                                                .remove(codeLocalVariableTypeTableN.size() - 1);
                                                for (int i = 0; i < numLocalVariablesInTypeTable; i++) {
                                                        final int location = codeLocalVariableTypeTableBciP.size() - 1;
                                                        codeLocalVariableTypeTableBciP.remove(location);
                                                        codeLocalVariableTypeTableSpanO.remove(location);
                                                        codeLocalVariableTypeTableNameRU.remove(location);
                                                        codeLocalVariableTypeTableTypeRS.remove(location);
                                                        codeLocalVariableTypeTableSlot.remove(location);
                                                }
                                        }
                                        if ((cdeFlags & (1 << 1)) != 0) {
                                                final int numLineNumbers = codeLineNumberTableN.remove(codeLineNumberTableN.size() - 1);
                                                for (int i = 0; i < numLineNumbers; i++) {
                                                        final int location = codeLineNumberTableBciP.size() - 1;
                                                        codeLineNumberTableBciP.remove(location);
                                                        codeLineNumberTableLine.remove(location);
                                                }
                                        }
                                }
                        }
                        if ((flags & (1 << 21)) != 0) {
                                method_RVA_bands.removeLatest();
                        }
                        if ((flags & (1 << 22)) != 0) {
                                method_RIA_bands.removeLatest();
                        }
                        if ((flags & (1 << 23)) != 0) {
                                method_RVPA_bands.removeLatest();
                        }
                        if ((flags & (1 << 24)) != 0) {
                                method_RIPA_bands.removeLatest();
                        }
                        if ((flags & (1 << 25)) != 0) {
                                method_AD_bands.removeLatest();
                        }
                }
                class_this[index] = null;
                class_super[index] = null;
                class_interface_count[index] = 0;
                class_interface[index] = null;
                major_versions[index] = 0;
                class_flags[index] = 0;
                tempFieldDesc.clear();
                tempFieldFlags.clear();
                tempMethodDesc.clear();
                tempMethodFlags.clear();
                if (index > 0) {
                        index--;
                }
        }

        public int numClassesProcessed() {
                return index;
        }
}