gistfile1.txt

Compiled from "ClosureTest.java"
final class ClosureTest$1 implements ClosureTest$Closure {
  final java.lang.Object val$o;

  ClosureTest$1(java.lang.Object);
    Code:
       0: aload_0       
       1: aload_1       
       2: putfield      #1                  // Field val$o:Ljava/lang/Object;
       5: aload_0       
       6: invokespecial #2                  // Method java/lang/Object."<init>":()V
       9: return        

  public void doSomething();
Compiled from "ClosureTest.java"
public class ClosureTest {
  public ClosureTest();
    Code:
       0: aload_0       
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return        

  public static void main(java.lang.String[]);
    Code:
       0: new           #2                  // class java/lang/Object
       3: dup           
       4: invokespecial #1                  // Method java/lang/Object."<init>":()V
       7: astore_1      
       8: new           #3                  // class ClosureTest$1
      11: dup           
      12: aload_1       
      13: invokespecial #4                  // Method ClosureTest$1."<init>":(Ljava/lang/Object;)V
      16: pop           
      17: return        
}
    Code:
       0: getstatic     #3                  // Field java/lang/System.out:Ljava/io/PrintStream;
       3: aload_0       
       4: getfield      #1                  // Field val$o:Ljava/lang/Object;
       7: invokevirtual #4                  // Method java/io/PrintStream.println:(Ljava/lang/Object;)V
      10: return        
}

gistfile2.txt

Compiled from "ClosureTest.java"
public class ClosureTest {
  public ClosureTest();
    Code:
       0: aload_0       
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return        

  public static void main(java.lang.String[]);
    Code:
       0: new           #2                  // class java/lang/Object
       3: dup           
       4: invokespecial #1                  // Method java/lang/Object."<init>":()V
       7: astore_1      
       8: new           #3                  // class ClosureTest$1
      11: dup           
      12: aload_1       
      13: invokespecial #4                  // Method ClosureTest$1."<init>":(Ljava/lang/Object;)V
      16: pop           
      17: return        
}

gistfile3.java

public class ClosureTest {
    public static interface Closure {
        public void doSomething();
    }

    public static void main(String[] args){
        final Object o = new Object();
        new Closure(){

            public void doSomething() {
                System.out.println(o);
            }
        };
    }
}