package jdk8.byte_code;

public interface Server {

  Boolean isRunning();

  public class HttpServer implements Server {
    @Override
    public Boolean isRunning() {
      return false;
    }
  }
}


package jdk8.byte_code;

import static jdk8.byte_code.Server.*;
import static jdk8.byte_code.WaitFor.waitFor;

public class Example2 {

    // anonymous class (closure)
    void example() throws InterruptedException {
        Server server = new HttpServer();
        waitFor(new Condition() {
            @Override
            public Boolean isSatisfied() {
                return !server.isRunning();
            }
        });
    }
}

Classfile Example2.class
 Last modified 08-May-2014; size 775 bytes
 MD5 checksum 2becf3c32e2b08abc50465aca7398c4b
 Compiled from "Example2.java"
 public class jdk8.byte_code.Example2
 SourceFile: "Example2.java"
 InnerClasses:
     #4; //class jdk8/byte_code/Example2$1
     public static #27= #2 of #25; //HttpServer=class jdk8/byte_code/Server$HttpServer of class jdk8/byte_code/Server
 minor version: 0
 major version: 52
 flags: ACC_PUBLIC, ACC_SUPER
 Constant pool:
 #1 = Methodref     #8.#24     // java/lang/Object."<init>":()V
 #2 = Class         #26        // jdk8/byte_code/Server$HttpServer
 #3 = Methodref     #2.#24     // jdk8/byte_code/Server$HttpServer."<init>":()V    
 #4 = Class         #28        // jdk8/byte_code/Example2$1 
 #5 = Methodref     #4.#29     // jdk8/byte_code/Example2$1."<init>":(Ljdk8/byte_code/Example2;Ljdk8/byte_code/Server;)V 
 #6 = Methodref     #30.#31    // jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V 
 #7 = Class         #32        // jdk8/byte_code/Example2
 #8 = Class         #33        // java/lang/Object
 #9 = Utf8          InnerClasses
 #10 = Utf8         <init>
 #11 = Utf8         ()V
 #12 = Utf8         Code 
 #13 = Utf8         LineNumberTable 
 #14 = Utf8         LocalVariableTable 
 #15 = Utf8         this 
 #16 = Utf8         Ljdk8/byte_code/Example2; 
 #17 = Utf8         example 
 #18 = Utf8         server 
 #19 = Utf8         Ljdk8/byte_code/Server; 
 #20 = Utf8         Exceptions 
 #21 = Class        #34          // java/lang/InterruptedException 
 #22 = Utf8         SourceFile
 #23 = Utf8         Example2.java 
 #24 = NameAndType  #10:#11      // "<init>":()V 
 #25 = Class        #35          // jdk8/byte_code/Server 
 #26 = Utf8         jdk8/byte_code/Server$HttpServer 
 #27 = Utf8         HttpServer 
 #28 = Utf8         jdk8/byte_code/Example2$1 
 #29 = NameAndType  #10:#36      // "<init>":(Ljdk8/byte_code/Example2;Ljdk8/byte_code/Server;)V 
 #30 = Class        #37          // jdk8/byte_code/WaitFor 
 #31 = NameAndType  #38:#39      // waitFor:(Ljdk8/byte_code/Condition;)V
 #32 = Utf8         jdk8/byte_code/Example2 
 #33 = Utf8         java/lang/Object
 #34 = Utf8         java/lang/InterruptedException
 #35 = Utf8         jdk8/byte_code/Server
 #36 = Utf8         (Ljdk8/byte_code/Example2;Ljdk8/byte_code/Server;)V
 #37 = Utf8         jdk8/byte_code/WaitFor 
 #38 = Utf8         waitFor 
 #39 = Utf8         (Ljdk8/byte_code/Condition;)V 
{
 public jdk8.byte_code.Example2();
 descriptor: ()V
 flags: ACC_PUBLIC
 Code:
   stack=1, locals=1, args_size=1
     0: aload_0
     1: invokespecial #1        // Method java/lang/Object."<init>":()V
     4: return
     LineNumberTable:
       line 6: 0 
     LocalVariableTable:
     Start Length Slot Name Signature
         0      5    0 this Ljdk8/byte_code/Example2;
 void example() throws java.lang.InterruptedException;
    descriptor: ()V
    flags:
    Code:
      stack=4, locals=2, args_size=1
         0: new           #2   //class jdk8/byte_code/Server$HttpServer
         3: dup
         4: invokespecial #3   //Method jdk8/byte_code/Server$HttpServer."<init>":()V
         7: astore_1
         8: new           #4   // class jdk8/byte_code/Example2$1
        11: dup
        12: aload_0
        13: aload_1
        14: invokespecial #5   // Method jdk8/byte_code/Example2$1."<init>":(Ljdk8/byte_code/Example2;Ljdk8/byte_code/Server;)V
        17: invokestatic  #6   // Method jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
        20: return
      LineNumberTable:
        line 10: 0
        line 11: 8
        line 17: 20
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0      21     0  this   Ljdk8/byte_code/Example2;
            8      13     1 server   Ljdk8/byte_code/Server;
    Exceptions:
      throws java.lang.InterruptedException
}