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.compressors.gzip.GzipUtils
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.commons.compress.compressors.gzip.GzipUtils
  super_class: java.lang.Object
{
  private static final org.apache.commons.compress.compressors.FileNameUtil fileNameUtil;
    descriptor: Lorg/apache/commons/compress/compressors/FileNameUtil;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=1, args_size=0
         0: .line 38
            new java.util.LinkedHashMap
            dup
            invokespecial java.util.LinkedHashMap.<init>:()V
         1: .line 37
            astore 0 /* uncompressSuffix */
        start local 0 // java.util.Map uncompressSuffix
         2: .line 39
            aload 0 /* uncompressSuffix */
            ldc ".tgz"
            ldc ".tar"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         3: .line 40
            aload 0 /* uncompressSuffix */
            ldc ".taz"
            ldc ".tar"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         4: .line 41
            aload 0 /* uncompressSuffix */
            ldc ".svgz"
            ldc ".svg"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         5: .line 42
            aload 0 /* uncompressSuffix */
            ldc ".cpgz"
            ldc ".cpio"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         6: .line 43
            aload 0 /* uncompressSuffix */
            ldc ".wmz"
            ldc ".wmf"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         7: .line 44
            aload 0 /* uncompressSuffix */
            ldc ".emz"
            ldc ".emf"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         8: .line 45
            aload 0 /* uncompressSuffix */
            ldc ".gz"
            ldc ""
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         9: .line 46
            aload 0 /* uncompressSuffix */
            ldc ".z"
            ldc ""
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        10: .line 47
            aload 0 /* uncompressSuffix */
            ldc "-gz"
            ldc ""
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        11: .line 48
            aload 0 /* uncompressSuffix */
            ldc "-z"
            ldc ""
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        12: .line 49
            aload 0 /* uncompressSuffix */
            ldc "_z"
            ldc ""
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        13: .line 50
            new org.apache.commons.compress.compressors.FileNameUtil
            dup
            aload 0 /* uncompressSuffix */
            ldc ".gz"
            invokespecial org.apache.commons.compress.compressors.FileNameUtil.<init>:(Ljava/util/Map;Ljava/lang/String;)V
            putstatic org.apache.commons.compress.compressors.gzip.GzipUtils.fileNameUtil:Lorg/apache/commons/compress/compressors/FileNameUtil;
        end local 0 // java.util.Map uncompressSuffix
        14: .line 51
            return
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            2   14     0  uncompressSuffix  Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.commons.compress.compressors.gzip.GzipUtils this
         0: .line 54
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 55
            return
        end local 0 // org.apache.commons.compress.compressors.gzip.GzipUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/commons/compress/compressors/gzip/GzipUtils;

  public static boolean isCompressedFilename(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.String filename
         0: .line 65
            getstatic org.apache.commons.compress.compressors.gzip.GzipUtils.fileNameUtil:Lorg/apache/commons/compress/compressors/FileNameUtil;
            aload 0 /* filename */
            invokevirtual org.apache.commons.compress.compressors.FileNameUtil.isCompressedFilename:(Ljava/lang/String;)Z
            ireturn
        end local 0 // java.lang.String filename
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  filename  Ljava/lang/String;
    MethodParameters:
          Name  Flags
      filename  final

  public static java.lang.String getUncompressedFilename(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.String filename
         0: .line 82
            getstatic org.apache.commons.compress.compressors.gzip.GzipUtils.fileNameUtil:Lorg/apache/commons/compress/compressors/FileNameUtil;
            aload 0 /* filename */
            invokevirtual org.apache.commons.compress.compressors.FileNameUtil.getUncompressedFilename:(Ljava/lang/String;)Ljava/lang/String;
            areturn
        end local 0 // java.lang.String filename
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  filename  Ljava/lang/String;
    MethodParameters:
          Name  Flags
      filename  final

  public static java.lang.String getCompressedFilename(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.String filename
         0: .line 97
            getstatic org.apache.commons.compress.compressors.gzip.GzipUtils.fileNameUtil:Lorg/apache/commons/compress/compressors/FileNameUtil;
            aload 0 /* filename */
            invokevirtual org.apache.commons.compress.compressors.FileNameUtil.getCompressedFilename:(Ljava/lang/String;)Ljava/lang/String;
            areturn
        end local 0 // java.lang.String filename
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  filename  Ljava/lang/String;
    MethodParameters:
          Name  Flags
      filename  final
}
SourceFile: "GzipUtils.java"