https://github.com/google/guava/guava: Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more. 
class com.google.common.io.FileBackedOutputStream$MemoryOutput extends java.io.ByteArrayOutputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.io.FileBackedOutputStream$MemoryOutput
  super_class: java.io.ByteArrayOutputStream
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.io.FileBackedOutputStream$MemoryOutput this
         0: .line 69
            aload 0 /* this */
            invokespecial java.io.ByteArrayOutputStream.<init>:()V
            return
        end local 0 // com.google.common.io.FileBackedOutputStream$MemoryOutput this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/io/FileBackedOutputStream$MemoryOutput;

  byte[] getBuffer();
    descriptor: ()[B
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.io.FileBackedOutputStream$MemoryOutput this
         0: .line 71
            aload 0 /* this */
            getfield com.google.common.io.FileBackedOutputStream$MemoryOutput.buf:[B
            areturn
        end local 0 // com.google.common.io.FileBackedOutputStream$MemoryOutput this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/io/FileBackedOutputStream$MemoryOutput;

  int getCount();
    descriptor: ()I
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.io.FileBackedOutputStream$MemoryOutput this
         0: .line 75
            aload 0 /* this */
            getfield com.google.common.io.FileBackedOutputStream$MemoryOutput.count:I
            ireturn
        end local 0 // com.google.common.io.FileBackedOutputStream$MemoryOutput this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/io/FileBackedOutputStream$MemoryOutput;
}
SourceFile: "FileBackedOutputStream.java"
NestHost: com.google.common.io.FileBackedOutputStream
InnerClasses:
  private MemoryOutput = com.google.common.io.FileBackedOutputStream$MemoryOutput of com.google.common.io.FileBackedOutputStream