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.brotli.BrotliUtils
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.commons.compress.compressors.brotli.BrotliUtils
  super_class: java.lang.Object
{
  private static volatile org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability cachedBrotliAvailability;
    descriptor: Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 35
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability.DONT_CACHE:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            putstatic org.apache.commons.compress.compressors.brotli.BrotliUtils.cachedBrotliAvailability:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
         1: .line 37
            ldc "org.osgi.framework.BundleEvent"
            invokestatic java.lang.Class.forName:(Ljava/lang/String;)Ljava/lang/Class;
            pop
         2: .line 38
            goto 5
      StackMap locals:
      StackMap stack: java.lang.Exception
         3: pop
         4: .line 39
            iconst_1
            invokestatic org.apache.commons.compress.compressors.brotli.BrotliUtils.setCacheBrotliAvailablity:(Z)V
         5: .line 41
      StackMap locals:
      StackMap stack:
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
      Exception table:
        from    to  target  type
           1     2       3  Class java.lang.Exception

  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.brotli.BrotliUtils this
         0: .line 44
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 45
            return
        end local 0 // org.apache.commons.compress.compressors.brotli.BrotliUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/commons/compress/compressors/brotli/BrotliUtils;

  public static boolean isBrotliCompressionAvailable();
    descriptor: ()Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=0
         0: .line 53
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils.cachedBrotliAvailability:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            astore 0 /* cachedResult */
        start local 0 // org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability cachedResult
         1: .line 54
            aload 0 /* cachedResult */
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability.DONT_CACHE:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            if_acmpeq 4
         2: .line 55
            aload 0 /* cachedResult */
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability.CACHED_AVAILABLE:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            if_acmpne 3
            iconst_1
            ireturn
      StackMap locals: org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability
      StackMap stack:
         3: iconst_0
            ireturn
         4: .line 57
      StackMap locals:
      StackMap stack:
            invokestatic org.apache.commons.compress.compressors.brotli.BrotliUtils.internalIsBrotliCompressionAvailable:()Z
            ireturn
        end local 0 // org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability cachedResult
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            1    5     0  cachedResult  Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;

  private static boolean internalIsBrotliCompressionAvailable();
    descriptor: ()Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 62
            ldc "org.brotli.dec.BrotliInputStream"
            invokestatic java.lang.Class.forName:(Ljava/lang/String;)Ljava/lang/Class;
            pop
         1: .line 63
            iconst_1
            ireturn
         2: .line 64
      StackMap locals:
      StackMap stack: java.lang.Throwable
            pop
         3: .line 65
            iconst_0
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
      Exception table:
        from    to  target  type
           0     1       2  Class java.lang.NoClassDefFoundError
           0     1       2  Class java.lang.Exception

  public static void setCacheBrotliAvailablity(boolean);
    descriptor: (Z)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // boolean doCache
         0: .line 76
            iload 0 /* doCache */
            ifne 3
         1: .line 77
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability.DONT_CACHE:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            putstatic org.apache.commons.compress.compressors.brotli.BrotliUtils.cachedBrotliAvailability:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
         2: .line 78
            goto 8
      StackMap locals:
      StackMap stack:
         3: getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils.cachedBrotliAvailability:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability.DONT_CACHE:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            if_acmpne 8
         4: .line 79
            invokestatic org.apache.commons.compress.compressors.brotli.BrotliUtils.internalIsBrotliCompressionAvailable:()Z
            istore 1 /* hasBrotli */
        start local 1 // boolean hasBrotli
         5: .line 80
            iload 1 /* hasBrotli */
            ifeq 6
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability.CACHED_AVAILABLE:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            goto 7
         6: .line 81
      StackMap locals: int
      StackMap stack:
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability.CACHED_UNAVAILABLE:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
         7: .line 80
      StackMap locals:
      StackMap stack: org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability
            putstatic org.apache.commons.compress.compressors.brotli.BrotliUtils.cachedBrotliAvailability:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
        end local 1 // boolean hasBrotli
         8: .line 83
      StackMap locals:
      StackMap stack:
            return
        end local 0 // boolean doCache
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    9     0    doCache  Z
            5    8     1  hasBrotli  Z
    MethodParameters:
         Name  Flags
      doCache  final

  static org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability getCachedBrotliAvailability();
    descriptor: ()Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 87
            getstatic org.apache.commons.compress.compressors.brotli.BrotliUtils.cachedBrotliAvailability:Lorg/apache/commons/compress/compressors/brotli/BrotliUtils$CachedAvailability;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "BrotliUtils.java"
NestMembers:
  org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability
InnerClasses:
  final CachedAvailability = org.apache.commons.compress.compressors.brotli.BrotliUtils$CachedAvailability of org.apache.commons.compress.compressors.brotli.BrotliUtils