https://commons.apache.org/proper/commons-compress/: Apache Commons Compress software defines an API for working with compression and archive formats. These include: bzip2, gzip, pack200, lzma, xz, Snappy, traditional Unix Compress, DEFLATE, DEFLATE64, LZ4, Brotli, Zstandard and ar, cpio, jar, tar, zip, dump, 7z, arj. (The Apache Software Foundation)
  • Wolfgang Glas
  • Christian Kohlschütte
  • Bear Giles
  • Michael Kuss
  • Lasse Collin
  • John Kodis
  • BELUGA BEHR
  • Simon Spero
  • Michael Hausegger
  • Torsten Curdt
  • Stefan Bodewig
  • Sebastian Bazley
  • Christian Grobmeier
  • Julius Davies
  • Damjan Jovanovic
  • Emmanuel Bourg
  • Gary Gregory
  • Rob Tompkins 
class org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory
  super_class: java.lang.Object
{
  private final byte[] memory;
    descriptor: [B
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int mask;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private int wHead;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private boolean wrappedAround;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
         0: .line 488
            aload 0 /* this */
            bipush 16
            invokespecial org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.<init>:(I)V
         1: .line 489
            return
        end local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/commons/compress/compressors/deflate64/HuffmanDecoder$DecodingMemory;

  private void <init>(int);
    descriptor: (I)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
        start local 1 // int bits
         0: .line 491
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 492
            aload 0 /* this */
            iconst_1
            iload 1 /* bits */
            ishl
            newarray 8
            putfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.memory:[B
         2: .line 493
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.memory:[B
            arraylength
            iconst_1
            isub
            putfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.mask:I
         3: .line 494
            return
        end local 1 // int bits
        end local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/commons/compress/compressors/deflate64/HuffmanDecoder$DecodingMemory;
            0    4     1  bits  I
    MethodParameters:
      Name  Flags
      bits  

  byte add(byte);
    descriptor: (B)B
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
        start local 1 // byte b
         0: .line 497
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.memory:[B
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wHead:I
            iload 1 /* b */
            bastore
         1: .line 498
            aload 0 /* this */
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wHead:I
            invokevirtual org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.incCounter:(I)I
            putfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wHead:I
         2: .line 499
            iload 1 /* b */
            ireturn
        end local 1 // byte b
        end local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/commons/compress/compressors/deflate64/HuffmanDecoder$DecodingMemory;
            0    3     1     b  B
    MethodParameters:
      Name  Flags
      b     

  void add(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0000) 
    Code:
      stack=3, locals=5, args_size=4
        start local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
        start local 1 // byte[] b
        start local 2 // int off
        start local 3 // int len
         0: .line 503
            iload 2 /* off */
            istore 4 /* i */
        start local 4 // int i
         1: goto 4
         2: .line 504
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            aload 1 /* b */
            iload 4 /* i */
            baload
            invokevirtual org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.add:(B)B
            pop
         3: .line 503
            iinc 4 /* i */ 1
      StackMap locals:
      StackMap stack:
         4: iload 4 /* i */
            iload 2 /* off */
            iload 3 /* len */
            iadd
            if_icmplt 2
        end local 4 // int i
         5: .line 506
            return
        end local 3 // int len
        end local 2 // int off
        end local 1 // byte[] b
        end local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/apache/commons/compress/compressors/deflate64/HuffmanDecoder$DecodingMemory;
            0    6     1     b  [B
            0    6     2   off  I
            0    6     3   len  I
            1    5     4     i  I
    MethodParameters:
      Name  Flags
      b     
      off   
      len   

  void recordToBuffer(int, int, byte[]);
    descriptor: (II[B)V
    flags: (0x0000) 
    Code:
      stack=5, locals=7, args_size=4
        start local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
        start local 1 // int distance
        start local 2 // int length
        start local 3 // byte[] buff
         0: .line 509
            iload 1 /* distance */
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.memory:[B
            arraylength
            if_icmple 2
         1: .line 510
            new java.lang.IllegalStateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Illegal distance parameter: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 1 /* distance */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 512
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wHead:I
            iload 1 /* distance */
            isub
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.mask:I
            iand
            istore 4 /* start */
        start local 4 // int start
         3: .line 513
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wrappedAround:Z
            ifne 5
            iload 4 /* start */
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wHead:I
            if_icmplt 5
         4: .line 514
            new java.lang.IllegalStateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Attempt to read beyond memory: dist="
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 1 /* distance */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 516
      StackMap locals: int
      StackMap stack:
            iconst_0
            istore 5 /* i */
        start local 5 // int i
         6: iload 4 /* start */
            istore 6 /* pos */
        start local 6 // int pos
         7: goto 10
         8: .line 517
      StackMap locals: int int
      StackMap stack:
            aload 3 /* buff */
            iload 5 /* i */
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.memory:[B
            iload 6 /* pos */
            baload
            invokevirtual org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.add:(B)B
            bastore
         9: .line 516
            iinc 5 /* i */ 1
            aload 0 /* this */
            iload 6 /* pos */
            invokevirtual org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.incCounter:(I)I
            istore 6 /* pos */
      StackMap locals:
      StackMap stack:
        10: iload 5 /* i */
            iload 2 /* length */
            if_icmplt 8
        end local 6 // int pos
        end local 5 // int i
        11: .line 519
            return
        end local 4 // int start
        end local 3 // byte[] buff
        end local 2 // int length
        end local 1 // int distance
        end local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   12     0      this  Lorg/apache/commons/compress/compressors/deflate64/HuffmanDecoder$DecodingMemory;
            0   12     1  distance  I
            0   12     2    length  I
            0   12     3      buff  [B
            3   12     4     start  I
            6   11     5         i  I
            7   11     6       pos  I
    MethodParameters:
          Name  Flags
      distance  
      length    
      buff      

  private int incCounter(int);
    descriptor: (I)I
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
        start local 1 // int counter
         0: .line 522
            iload 1 /* counter */
            iconst_1
            iadd
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.mask:I
            iand
            istore 2 /* newCounter */
        start local 2 // int newCounter
         1: .line 523
            aload 0 /* this */
            getfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wrappedAround:Z
            ifne 3
            iload 2 /* newCounter */
            iload 1 /* counter */
            if_icmpge 3
         2: .line 524
            aload 0 /* this */
            iconst_1
            putfield org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory.wrappedAround:Z
         3: .line 526
      StackMap locals: int
      StackMap stack:
            iload 2 /* newCounter */
            ireturn
        end local 2 // int newCounter
        end local 1 // int counter
        end local 0 // org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0        this  Lorg/apache/commons/compress/compressors/deflate64/HuffmanDecoder$DecodingMemory;
            0    4     1     counter  I
            1    4     2  newCounter  I
    MethodParameters:
         Name  Flags
      counter  
}
SourceFile: "HuffmanDecoder.java"
NestHost: org.apache.commons.compress.compressors.deflate64.HuffmanDecoder
InnerClasses:
  private DecodingMemory = org.apache.commons.compress.compressors.deflate64.HuffmanDecoder$DecodingMemory of org.apache.commons.compress.compressors.deflate64.HuffmanDecoder