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 
public class org.apache.commons.compress.utils.ChecksumCalculatingInputStream extends java.io.InputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.commons.compress.utils.ChecksumCalculatingInputStream
  super_class: java.io.InputStream
{
  private final java.io.InputStream in;
    descriptor: Ljava/io/InputStream;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.util.zip.Checksum checksum;
    descriptor: Ljava/util/zip/Checksum;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(java.util.zip.Checksum, java.io.InputStream);
    descriptor: (Ljava/util/zip/Checksum;Ljava/io/InputStream;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
        start local 1 // java.util.zip.Checksum checksum
        start local 2 // java.io.InputStream in
         0: .line 33
            aload 0 /* this */
            invokespecial java.io.InputStream.<init>:()V
         1: .line 35
            aload 1 /* checksum */
            ifnonnull 3
         2: .line 36
            new java.lang.NullPointerException
            dup
            ldc "Parameter checksum must not be null"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 39
      StackMap locals: org.apache.commons.compress.utils.ChecksumCalculatingInputStream java.util.zip.Checksum java.io.InputStream
      StackMap stack:
            aload 2 /* in */
            ifnonnull 5
         4: .line 40
            new java.lang.NullPointerException
            dup
            ldc "Parameter in must not be null"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 43
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* checksum */
            putfield org.apache.commons.compress.utils.ChecksumCalculatingInputStream.checksum:Ljava/util/zip/Checksum;
         6: .line 44
            aload 0 /* this */
            aload 2 /* in */
            putfield org.apache.commons.compress.utils.ChecksumCalculatingInputStream.in:Ljava/io/InputStream;
         7: .line 45
            return
        end local 2 // java.io.InputStream in
        end local 1 // java.util.zip.Checksum checksum
        end local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    8     0      this  Lorg/apache/commons/compress/utils/ChecksumCalculatingInputStream;
            0    8     1  checksum  Ljava/util/zip/Checksum;
            0    8     2        in  Ljava/io/InputStream;
    MethodParameters:
          Name  Flags
      checksum  final
      in        final

  public int read();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
         0: .line 55
            aload 0 /* this */
            getfield org.apache.commons.compress.utils.ChecksumCalculatingInputStream.in:Ljava/io/InputStream;
            invokevirtual java.io.InputStream.read:()I
            istore 1 /* ret */
        start local 1 // int ret
         1: .line 56
            iload 1 /* ret */
            iflt 3
         2: .line 57
            aload 0 /* this */
            getfield org.apache.commons.compress.utils.ChecksumCalculatingInputStream.checksum:Ljava/util/zip/Checksum;
            iload 1 /* ret */
            invokeinterface java.util.zip.Checksum.update:(I)V
         3: .line 59
      StackMap locals: int
      StackMap stack:
            iload 1 /* ret */
            ireturn
        end local 1 // int ret
        end local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/commons/compress/utils/ChecksumCalculatingInputStream;
            1    4     1   ret  I
    Exceptions:
      throws java.io.IOException

  public int read(byte[]);
    descriptor: ([B)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
        start local 1 // byte[] b
         0: .line 70
            aload 0 /* this */
            aload 1 /* b */
            iconst_0
            aload 1 /* b */
            arraylength
            invokevirtual org.apache.commons.compress.utils.ChecksumCalculatingInputStream.read:([BII)I
            ireturn
        end local 1 // byte[] b
        end local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/commons/compress/utils/ChecksumCalculatingInputStream;
            0    1     1     b  [B
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      b     final

  public int read(byte[], int, int);
    descriptor: ([BII)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=4
        start local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
        start local 1 // byte[] b
        start local 2 // int off
        start local 3 // int len
         0: .line 81
            aload 0 /* this */
            getfield org.apache.commons.compress.utils.ChecksumCalculatingInputStream.in:Ljava/io/InputStream;
            aload 1 /* b */
            iload 2 /* off */
            iload 3 /* len */
            invokevirtual java.io.InputStream.read:([BII)I
            istore 4 /* ret */
        start local 4 // int ret
         1: .line 82
            iload 4 /* ret */
            iflt 3
         2: .line 83
            aload 0 /* this */
            getfield org.apache.commons.compress.utils.ChecksumCalculatingInputStream.checksum:Ljava/util/zip/Checksum;
            aload 1 /* b */
            iload 2 /* off */
            iload 4 /* ret */
            invokeinterface java.util.zip.Checksum.update:([BII)V
         3: .line 85
      StackMap locals: int
      StackMap stack:
            iload 4 /* ret */
            ireturn
        end local 4 // int ret
        end local 3 // int len
        end local 2 // int off
        end local 1 // byte[] b
        end local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/commons/compress/utils/ChecksumCalculatingInputStream;
            0    4     1     b  [B
            0    4     2   off  I
            0    4     3   len  I
            1    4     4   ret  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      b     final
      off   final
      len   final

  public long skip(long);
    descriptor: (J)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
        start local 1 // long n
         0: .line 91
            aload 0 /* this */
            invokevirtual org.apache.commons.compress.utils.ChecksumCalculatingInputStream.read:()I
            iflt 2
         1: .line 92
            lconst_1
            lreturn
         2: .line 94
      StackMap locals:
      StackMap stack:
            lconst_0
            lreturn
        end local 1 // long n
        end local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/commons/compress/utils/ChecksumCalculatingInputStream;
            0    3     1     n  J
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      n     final

  public long getValue();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
         0: .line 102
            aload 0 /* this */
            getfield org.apache.commons.compress.utils.ChecksumCalculatingInputStream.checksum:Ljava/util/zip/Checksum;
            invokeinterface java.util.zip.Checksum.getValue:()J
            lreturn
        end local 0 // org.apache.commons.compress.utils.ChecksumCalculatingInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/commons/compress/utils/ChecksumCalculatingInputStream;
}
SourceFile: "ChecksumCalculatingInputStream.java"