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.archivers.dump.DumpArchiveUtil
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.commons.compress.archivers.dump.DumpArchiveUtil
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.commons.compress.archivers.dump.DumpArchiveUtil this
         0: .line 33
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 34
            return
        end local 0 // org.apache.commons.compress.archivers.dump.DumpArchiveUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/commons/compress/archivers/dump/DumpArchiveUtil;

  public static int calculateChecksum(byte[]);
    descriptor: ([B)I
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=1
        start local 0 // byte[] buffer
         0: .line 43
            iconst_0
            istore 1 /* calc */
        start local 1 // int calc
         1: .line 45
            iconst_0
            istore 2 /* i */
        start local 2 // int i
         2: goto 5
         3: .line 46
      StackMap locals: int int
      StackMap stack:
            iload 1 /* calc */
            aload 0 /* buffer */
            iconst_4
            iload 2 /* i */
            imul
            invokestatic org.apache.commons.compress.archivers.dump.DumpArchiveUtil.convert32:([BI)I
            iadd
            istore 1 /* calc */
         4: .line 45
            iinc 2 /* i */ 1
      StackMap locals:
      StackMap stack:
         5: iload 2 /* i */
            sipush 256
            if_icmplt 3
        end local 2 // int i
         6: .line 49
            ldc 84446
         7: .line 50
            iload 1 /* calc */
            aload 0 /* buffer */
            bipush 28
            invokestatic org.apache.commons.compress.archivers.dump.DumpArchiveUtil.convert32:([BI)I
            isub
         8: .line 49
            isub
            ireturn
        end local 1 // int calc
        end local 0 // byte[] buffer
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    9     0  buffer  [B
            1    9     1    calc  I
            2    6     2       i  I
    MethodParameters:
        Name  Flags
      buffer  final

  public static final boolean verify(byte[]);
    descriptor: ([B)Z
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Code:
      stack=2, locals=3, args_size=1
        start local 0 // byte[] buffer
         0: .line 60
            aload 0 /* buffer */
            bipush 24
            invokestatic org.apache.commons.compress.archivers.dump.DumpArchiveUtil.convert32:([BI)I
            istore 1 /* magic */
        start local 1 // int magic
         1: .line 62
            iload 1 /* magic */
            ldc 60012
            if_icmpeq 3
         2: .line 63
            iconst_0
            ireturn
         3: .line 67
      StackMap locals: int
      StackMap stack:
            aload 0 /* buffer */
            bipush 28
            invokestatic org.apache.commons.compress.archivers.dump.DumpArchiveUtil.convert32:([BI)I
            istore 2 /* checksum */
        start local 2 // int checksum
         4: .line 69
            iload 2 /* checksum */
            aload 0 /* buffer */
            invokestatic org.apache.commons.compress.archivers.dump.DumpArchiveUtil.calculateChecksum:([B)I
            if_icmpne 5
            iconst_1
            ireturn
      StackMap locals: int
      StackMap stack:
         5: iconst_0
            ireturn
        end local 2 // int checksum
        end local 1 // int magic
        end local 0 // byte[] buffer
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    6     0    buffer  [B
            1    6     1     magic  I
            4    6     2  checksum  I
    MethodParameters:
        Name  Flags
      buffer  final

  public static final int getIno(byte[]);
    descriptor: ([B)I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // byte[] buffer
         0: .line 78
            aload 0 /* buffer */
            bipush 20
            invokestatic org.apache.commons.compress.archivers.dump.DumpArchiveUtil.convert32:([BI)I
            ireturn
        end local 0 // byte[] buffer
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  buffer  [B
    MethodParameters:
        Name  Flags
      buffer  final

  public static final long convert64(byte[], int);
    descriptor: ([BI)J
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // byte[] buffer
        start local 1 // int offset
         0: .line 89
            aload 0 /* buffer */
            iload 1 /* offset */
            bipush 8
            invokestatic org.apache.commons.compress.utils.ByteUtils.fromLittleEndian:([BII)J
            lreturn
        end local 1 // int offset
        end local 0 // byte[] buffer
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  buffer  [B
            0    1     1  offset  I
    MethodParameters:
        Name  Flags
      buffer  final
      offset  final

  public static final int convert32(byte[], int);
    descriptor: ([BI)I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // byte[] buffer
        start local 1 // int offset
         0: .line 100
            aload 0 /* buffer */
            iload 1 /* offset */
            iconst_4
            invokestatic org.apache.commons.compress.utils.ByteUtils.fromLittleEndian:([BII)J
            l2i
            ireturn
        end local 1 // int offset
        end local 0 // byte[] buffer
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  buffer  [B
            0    1     1  offset  I
    MethodParameters:
        Name  Flags
      buffer  final
      offset  final

  public static final int convert16(byte[], int);
    descriptor: ([BI)I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // byte[] buffer
        start local 1 // int offset
         0: .line 111
            aload 0 /* buffer */
            iload 1 /* offset */
            iconst_2
            invokestatic org.apache.commons.compress.utils.ByteUtils.fromLittleEndian:([BII)J
            l2i
            ireturn
        end local 1 // int offset
        end local 0 // byte[] buffer
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  buffer  [B
            0    1     1  offset  I
    MethodParameters:
        Name  Flags
      buffer  final
      offset  final

  static java.lang.String decode(org.apache.commons.compress.archivers.zip.ZipEncoding, byte[], int, int);
    descriptor: (Lorg/apache/commons/compress/archivers/zip/ZipEncoding;[BII)Ljava/lang/String;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=5, locals=4, args_size=4
        start local 0 // org.apache.commons.compress.archivers.zip.ZipEncoding encoding
        start local 1 // byte[] b
        start local 2 // int offset
        start local 3 // int len
         0: .line 119
            aload 0 /* encoding */
            aload 1 /* b */
            iload 2 /* offset */
            iload 2 /* offset */
            iload 3 /* len */
            iadd
            invokestatic java.util.Arrays.copyOfRange:([BII)[B
            invokeinterface org.apache.commons.compress.archivers.zip.ZipEncoding.decode:([B)Ljava/lang/String;
            areturn
        end local 3 // int len
        end local 2 // int offset
        end local 1 // byte[] b
        end local 0 // org.apache.commons.compress.archivers.zip.ZipEncoding encoding
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  encoding  Lorg/apache/commons/compress/archivers/zip/ZipEncoding;
            0    1     1         b  [B
            0    1     2    offset  I
            0    1     3       len  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
          Name  Flags
      encoding  final
      b         final
      offset    final
      len       final
}
SourceFile: "DumpArchiveUtil.java"