https://www.graalvm.org/ 
class org.graalvm.component.installer.ChunkedConnection$1 extends java.io.InputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.graalvm.component.installer.ChunkedConnection$1
  super_class: java.io.InputStream
{
  final org.graalvm.component.installer.ChunkedConnection this$0;
    descriptor: Lorg/graalvm/component/installer/ChunkedConnection;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.graalvm.component.installer.ChunkedConnection);
    descriptor: (Lorg/graalvm/component/installer/ChunkedConnection;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.graalvm.component.installer.ChunkedConnection$1 this
         0: .line 64
            aload 0 /* this */
            aload 1
            putfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            aload 0 /* this */
            invokespecial java.io.InputStream.<init>:()V
            return
        end local 0 // org.graalvm.component.installer.ChunkedConnection$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/component/installer/ChunkedConnection$1;
    MethodParameters:
        Name  Flags
      this$0  final

  public int read();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=1
        start local 0 // org.graalvm.component.installer.ChunkedConnection$1 this
         0: .line 67
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            dup
            astore 1
            monitorenter
         1: .line 68
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            getfield org.graalvm.component.installer.ChunkedConnection.nextChunk:J
            lconst_0
            lcmp
            ifne 7
         2: .line 69
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            getfield org.graalvm.component.installer.ChunkedConnection.reachedSem:Ljava/util/concurrent/Semaphore;
            invokevirtual java.util.concurrent.Semaphore.release:()V
         3: .line 71
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            getfield org.graalvm.component.installer.ChunkedConnection.nextSem:Ljava/util/concurrent/Semaphore;
            invokevirtual java.util.concurrent.Semaphore.acquire:()V
         4: .line 72
            goto 7
      StackMap locals: org.graalvm.component.installer.ChunkedConnection$1 org.graalvm.component.installer.ChunkedConnection
      StackMap stack: java.lang.InterruptedException
         5: astore 2 /* ex */
        start local 2 // java.lang.InterruptedException ex
         6: .line 73
            ldc Lorg/graalvm/component/installer/remote/FileDownloaderTest;
            invokevirtual java.lang.Class.getName:()Ljava/lang/String;
            invokestatic java.util.logging.Logger.getLogger:(Ljava/lang/String;)Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.SEVERE:Ljava/util/logging/Level;
            aconst_null
            aload 2 /* ex */
            invokevirtual java.util.logging.Logger.log:(Ljava/util/logging/Level;Ljava/lang/String;Ljava/lang/Throwable;)V
        end local 2 // java.lang.InterruptedException ex
         7: .line 76
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            getfield org.graalvm.component.installer.ChunkedConnection.readException:Ljava/io/IOException;
            ifnull 9
         8: .line 77
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            getfield org.graalvm.component.installer.ChunkedConnection.readException:Ljava/io/IOException;
            athrow
         9: .line 79
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            dup
            getfield org.graalvm.component.installer.ChunkedConnection.nextChunk:J
            lconst_1
            lsub
            putfield org.graalvm.component.installer.ChunkedConnection.nextChunk:J
        10: .line 80
            aload 0 /* this */
            getfield org.graalvm.component.installer.ChunkedConnection$1.this$0:Lorg/graalvm/component/installer/ChunkedConnection;
            getfield org.graalvm.component.installer.ChunkedConnection.delegate:Ljava/io/InputStream;
            invokevirtual java.io.InputStream.read:()I
            aload 1
            monitorexit
        11: ireturn
        12: .line 67
      StackMap locals:
      StackMap stack: java.lang.Throwable
            aload 1
            monitorexit
        13: athrow
        end local 0 // org.graalvm.component.installer.ChunkedConnection$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   14     0  this  Lorg/graalvm/component/installer/ChunkedConnection$1;
            6    7     2    ex  Ljava/lang/InterruptedException;
      Exception table:
        from    to  target  type
           3     4       5  Class java.lang.InterruptedException
           1    11      12  any
          12    13      12  any
    Exceptions:
      throws java.io.IOException
}
SourceFile: "ChunkedConnection.java"
EnclosingMethod: org.graalvm.component.installer.ChunkedConnection.getInputStream:()Ljava/io/InputStream;
NestHost: org.graalvm.component.installer.ChunkedConnection
InnerClasses:
  org.graalvm.component.installer.ChunkedConnection$1