package jdk8.byte_code;
class WaitFor {
static void waitFor(Condition condition) throws
InterruptedException {
while (!condition.isSatisfied())
Thread.sleep(250);
}
static <T> void waitFor(T input, Predicate<T> predicate)
throws InterruptedException {
while (!predicate.test(input))
Thread.sleep(250);
}
}package jdk8.byte_code;
import static jdk8.byte_code.WaitFor.waitFor;
@SuppressWarnings("all")
public class Example1 {
// anonymous class
void example() throws InterruptedException {
waitFor(new Condition() {
@Override
public Boolean isSatisfied() {
return true;
}
});
}
}Classfile Example1.class
Last modified 08-May-2014; size 603 bytes
MD5 checksum 7365ca98fe204fc9198043cef5d241be
Compiled from "Example1.java"
public class jdk8.byte_code.Example1
SourceFile: "Example1.java"
InnerClasses:
#2; //class jdk8/byte_code/Example1$1
minor version: 0
major version: 52
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Methodref #6.#20 // java/lang/Object." <init>":()V
#2 = Class #21 // jdk8/byte_code/Example1$1
#3 = Methodref #2.#22 // jdk8/byte_code/Example1$1." <init>":(Ljdk8/byte_code/Example1;)V
#4 = Methodref #23.#24 //
jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
#5 = Class #25 // jdk8/byte_code/Example1
#6 = Class #26 // java/lang/Object
#7 = Utf8 InnerClasses
#8 = Utf8 <init>
#9 = Utf8 ()V
#10 = Utf8 Code
#11 = Utf8 LineNumberTable
#12 = Utf8 LocalVariableTable
#13 = Utf8 this
#14 = Utf8 Ljdk8/byte_code/Example1;
#15 = Utf8 example
#16 = Utf8 Exceptions
#17 = Class #27 // java/lang/InterruptedException
#18 = Utf8 SourceFile
#19 = Utf8 Example1.java
#20 = NameAndType #8:#9 // "":()V
#21 = Utf8 jdk8/byte_code/Example1$1
#22 = NameAndType #8:#28 // "":(Ljdk8/byte_code/Example1;)V
#23 = Class #29 // jdk8/byte_code/WaitFor
#24 = NameAndType #30:#31 // waitFor:(Ljdk8/byte_code/Condition;)V
#25 = Utf8 jdk8/byte_code/Example1
#26 = Utf8 java/lang/Object
#27 = Utf8 java/lang/InterruptedException
#28 = Utf8 (Ljdk8/byte_code/Example1;)V
#29 = Utf8 jdk8/byte_code/WaitFor
#30 = Utf8 waitFor
#31 = Utf8 (Ljdk8/byte_code/Condition;)V
{
public jdk8.byte_code.Example1();
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/Example1;
void example() throws java.lang.InterruptedException;
descriptor: ()V
flags:
Code:
stack=3, locals=1, args_size=1
0: new #2 // class
jdk8/byte_code/Example1$1
3: dup
4: aload_0
5: invokespecial #3 // Method
jdk8/byte_code/Example1$1."<init>":(Ljdk8/byte_code/Example1;)V
8: invokestatic #4 // Method jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
11: return
LineNumberTable:
line 10: 0
line 16: 11
LocalVariableTable:
Start Length Slot Name Signature
0 12 0 this Ljdk8/byte_code/Example1;
Exceptions:
throws java.lang.InterruptedException
}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$1."<init>":(Ljdk8/byte_code/Example2;Ljdk8/byte_code/Server;)V
17: invokestatic #6 // Method jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
20: return
LineNumberTable:
line 10: 0
line 11: 8
line 17: 20
LocalVariableTable:
Start Length Slot Name Signature
0 21 0 this Ljdk8/byte_code/Example2;
8 13 1 server Ljdk8/byte_code/Server;
Exceptions:
throws java.lang.InterruptedException
}package jdk8.byte_code;
import static jdk8.byte_code.WaitFor.waitFor;
public class Example3 {
// simple lambda
void example() throws InterruptedException {
waitFor(() -> true);
}
}Classfile Example3.class
Last modified 08-May-2014; size 1155 bytes
MD5 checksum 22e120de85528efc921bb158588bbaa1
Compiled from "Example3.java"
public class jdk8.byte_code.Example3
SourceFile: "Example3.java"
InnerClasses:
public static final #50= #49 of #53; //Lookup=class java/lang/invoke/MethodHandles$Lookup of class java/lang/invoke/MethodHandles
BootstrapMethods:
0: #23 invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
Method arguments:
#24 ()Ljava/lang/Boolean;
#25 invokestatic jdk8/byte_code/Example3.lambda$example$25:()Ljava/lang/Boolean;
#24 ()Ljava/lang/Boolean;
minor version: 0
major version: 52
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Methodref #6.#21 // java/lang/Object."<init>":()V
#2 = InvokeDynamic #0:#26 // #0:isSatisfied:()Ljdk8/byte_code/Condition;
#3 = Methodref #27.#28 // jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
#4 = Methodref #29.#30 // java/lang/Boolean.valueOf:(Z)Ljava/lang/Boolean;
#5 = Class #31 // jdk8/byte_code/Example3
#6 = Class #32 // java/lang/Object
#7 = Utf8 <init>
#8 = Utf8 ()V
#9 = Utf8 Code
#10 = Utf8 LineNumberTable
#11 = Utf8 LocalVariableTable
#12 = Utf8 this
#13 = Utf8 Ljdk8/byte_code/Example3;
#14 = Utf8 example
#15 = Utf8 Exceptions
#16 = Class #33 // java/lang/InterruptedException
#17 = Utf8 lambda$example$25
#18 = Utf8 ()Ljava/lang/Boolean;
#19 = Utf8 SourceFile
#20 = Utf8 Example3.java
#21 = NameAndType #7:#8 // "<init>":()V
#22 = Utf8 BootstrapMethods
#23 = MethodHandle #6:#34 // invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#24 = MethodType #18 // ()Ljava/lang/Boolean;
#25 = MethodHandle #6:#35 // invokestatic jdk8/byte_code/Example3.lambda$example$25:()Ljava/lang/Boolean;
#26 = NameAndType #36:#37 // isSatisfied:()Ljdk8/byte_code/Condition;
#27 = Class #38 // jdk8/byte_code/WaitFor
#28 = NameAndType #39:#40 // waitFor:(Ljdk8/byte_code/Condition;)V
#29 = Class #41 // java/lang/Boolean
#30 = NameAndType #42:#43 // valueOf:(Z)Ljava/lang/Boolean;
#31 = Utf8 jdk8/byte_code/Example3
#32 = Utf8 java/lang/Object
#33 = Utf8 java/lang/InterruptedException
#34 = Methodref #44.#45 // java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#35 = Methodref #5.#46 // jdk8/byte_code/Example3.lambda$example$25:()Ljava/lang/Boolean;
#36 = Utf8 isSatisfied
#37 = Utf8 ()Ljdk8/byte_code/Condition;
#38 = Utf8 jdk8/byte_code/WaitFor
#39 = Utf8 waitFor
#40 = Utf8 (Ljdk8/byte_code/Condition;)V
#41 = Utf8 java/lang/Boolean
#42 = Utf8 valueOf
#43 = Utf8 (Z)Ljava/lang/Boolean;
#44 = Class #47 // java/lang/invoke/LambdaMetafactory
#45 = NameAndType #48:#52 // metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#46 = NameAndType #17:#18 // lambda$example$25:()Ljava/lang/Boolean;
#47 = Utf8 java/lang/invoke/LambdaMetafactory
#48 = Utf8 metafactory
#49 = Class #54 // java/lang/invoke/MethodHandles$Lookup
#50 = Utf8 Lookup
#51 = Utf8 InnerClasses
#52 = Utf8 (Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#53 = Class #55 // java/lang/invoke/MethodHandles
#54 = Utf8 java/lang/invoke/MethodHandles$Lookup
#55 = Utf8 java/lang/invoke/MethodHandles
{
public jdk8.byte_code.Example3();
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/Example3;
void example() throws java.lang.InterruptedException;
descriptor: ()V
flags:
Code:
stack=1, locals=1, args_size=1
0: invokedynamic #2, 0 // InvokeDynamic #0:isSatisfied:()Ljdk8/byte_code/Condition;
5: invokestatic #3 // Method jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
8: return
LineNumberTable:
line 10: 0
line 11: 8
LocalVariableTable:
Start Length Slot Name Signature
0 9 0 this Ljdk8/byte_code/Example3;
Exceptions:
throws java.lang.InterruptedException
}package jdk8.byte_code;
import static jdk8.byte_code.Server.HttpServer;
import static jdk8.byte_code.WaitFor.waitFor;
public class Example4 {
// lambda with arguments
void example() throws InterruptedException {
waitFor(new HttpServer(), (server) -> server.isRunning());
}
}Classfile Example4.class
Last modified 08-May-2014; size 1414 bytes
MD5 checksum 7177f97fdf30b0648a09ab98109a479c
Compiled from "Example4.java"
public class jdk8.byte_code.Example4
SourceFile: "Example4.java"
InnerClasses:
public static #21= #2 of #29; //HttpServer=class jdk8/byte_code/Server$HttpServer of class jdk8/byte_code/Server
public static final #65= #64 of #67; //Lookup=class java/lang/invoke/MethodHandles$Lookup of class java/lang/invoke/MethodHandles
BootstrapMethods:
0: #32 invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
Method arguments:
#33 (Ljava/lang/Object;)Z
#34 invokestatic jdk8/byte_code/Example4.lambda$example33 : (*L*
*j*
*d*
*k*8/*b*
*y*
*t*
*e*
<sub>*c*</sub> *o*
*d*
*e*/*S*
*e*
*r*
*v*
*e*
*r*HttpServer;)Z
#35 (Ljdk8/byte_code/Server$HttpServer;)Z
minor version: 0
major version: 52
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Methodref #9.#28 //java/lang/Object."<init>":()V
#2 = Class #30 //jdk8/byte_code/Server$HttpServer
#3 = Methodref #2.#28 //jdk8/byte_code/Server$HttpServer."<init>":()V
#4 = InvokeDynamic #0:#36 // #0:test:()Ljava/util/function/Predicate;
#5 = Methodref #37.#38 // jdk8/byte_code/WaitFor.waitFor:(Ljava/lang/Object;Ljava/util/function/Predicate;)V
#6 = Methodref #2.#39 // jdk8/byte_code/Server$HttpServer.isRunning:()Ljava/lang/Boolean;
#7 = Methodref #40.#41 // java/lang/Boolean.booleanValue:()Z
#8 = Class #42 // jdk8/byte_code/Example4
#9 = Class #43 //java/lang/Object
#10 = Utf8 <init>
#11 = Utf8 ()V
#12 = Utf8 Code
#13 = Utf8 LineNumberTable
#14 = Utf8 LocalVariableTable
#15 = Utf8 this
#16 = Utf8 Ljdk8/byte_code/Example4;
#17 = Utf8 example
#18 = Utf8 Exceptions
#19 = Class #44 // java/lang/InterruptedException
#20 = Utf8 lambda$example$33
#21 = Utf8 HttpServer
#22 = Utf8 InnerClasses
#23 = Utf8 (Ljdk8/byte_code/Server$HttpServer;)Z
#24 = Utf8 server
#25 = Utf8 Ljdk8/byte_code/Server$HttpServer;
#26 = Utf8 SourceFile
#27 = Utf8 Example4.java
#28 = NameAndType #10:#11 // "<init>":()V
#29 = Class #45 // jdk8/byte_code/Server
#30 = Utf8 jdk8/byte_code/Server$HttpServer
#31 = Utf8 BootstrapMethods
#32 = MethodHandle #6:#46 // invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#33 = MethodType #47 // (Ljava/lang/Object;)Z
#34 = MethodHandle #6:#48 // invokestatic jdk8/byte_code/Example4.lambda$example33 : (*L*
*j*
*d*
*k*8/*b*
*y*
*t*
*e*
<sub>*c*</sub> *o*
*d*
*e*/*S*
*e*
*r*
*v*
*e*
*r*HttpServer;)Z
#35 = MethodType #23 // (Ljdk8/byte_code/Server$HttpServer;)Z
#36 = NameAndType #49:#50 // test:()Ljava/util/function/Predicate;
#37 = Class #51 // jdk8/byte_code/WaitFor
#38 = NameAndType #52:#53 // waitFor:(Ljava/lang/Object;Ljava/util/function/Predicate;)V
#39 = NameAndType #54:#55 // isRunning:()Ljava/lang/Boolean;
#40 = Class #56 // java/lang/Boolean
#41 = NameAndType #57:#58 // booleanValue:()Z
#42 = Utf8 jdk8/byte_code/Example4
#43 = Utf8 java/lang/Object
#44 = Utf8 java/lang/InterruptedException
#45 = Utf8 jdk8/byte_code/Server
#46 = Methodref #59.#60 // java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#47 = Utf8 (Ljava/lang/Object;)Z
#48 = Methodref #8.#61 // jdk8/byte_code/Example4.lambda$example33 : (*L*
*j*
*d*
*k*8/*b*
*y*
*t*
*e*
<sub>*c*</sub> *o*
*d*
*e*/*S*
*e*
*r*
*v*
*e*
*r*HttpServer;)Z
#49 = Utf8 test
#50 = Utf8 ()Ljava/util/function/Predicate;
#51 = Utf8 jdk8/byte_code/WaitFor
#52 = Utf8 waitFor
#53 = Utf8 (Ljava/lang/Object;Ljava/util/function/Predicate;)V
#54 = Utf8 isRunning
#55 = Utf8 ()Ljava/lang/Boolean;
#56 = Utf8 java/lang/Boolean
#57 = Utf8 booleanValue
#58 = Utf8 ()Z
#59 = Class #62 // java/lang/invoke/LambdaMetafactory
#60 = NameAndType #63:#66 // metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#61 = NameAndType #20:#23 // lambda$example33 : (*L*
*j*
*d*
*k*8/*b*
*y*
*t*
*e*
<sub>*c*</sub> *o*
*d*
*e*/*S*
*e*
*r*
*v*
*e*
*r*HttpServer;)Z
#62 = Utf8 java/lang/invoke/LambdaMetafactory
#63 = Utf8 metafactory
#64 = Class #68 // java/lang/invoke/MethodHandles$Lookup
#65 = Utf8 Lookup
#66 = Utf8 (Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#67 = Class #69 // java/lang/invoke/MethodHandles
#68 = Utf8 java/lang/invoke/MethodHandles$Lookup
#69 = Utf8 java/lang/invoke/MethodHandles
{
public jdk8.byte_code.Example4();
descriptor: ()V
flags: ACC_PUBLIC
Code: stack=1, locals=1, args_size=1
0: aload_0 1:
invokespecial #1 // Method java/lang/Object."":()V
4: return
LineNumberTable:
line 9: 0
LocalVariableTable:
Start Length Slot Name Signature
0 5 0 this Ljdk8/byte_code/Example4;
void example() throws java.lang.InterruptedException;
descriptor: ()V
flags:
Code:
stack=2, locals=1, 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: invokedynamic #4, 0 //InvokeDynamic #0:test:()Ljava/util/function/Predicate;
12: invokestatic #5 // Method jdk8/byte_code/WaitFor.waitFor:(Ljava/lang/Object;Ljava/util/function/Predicate;)V
15: return
LineNumberTable:
line 13: 0
line 15: 15
LocalVariableTable:
Start Length Slot Name Signature
0 16 0 this Ljdk8/byte_code/Example4;
Exceptions:
throws java.lang.InterruptedException
}package jdk8.byte_code;
import static jdk8.byte_code.Server.HttpServer;
import static jdk8.byte_code.WaitFor.waitFor;
@SuppressWarnings("all")
public class Example4_method_reference {
// lambda with method reference
void example() throws InterruptedException {
waitFor(new HttpServer(), HttpServer::isRunning);
}
}Classfile Example4_method_reference.class
Last modified 08-May-2014; size 1271 bytes
MD5 checksum f8aef942361f29ef599adfec7a594948
Compiled from "Example4_method_reference.java"
public class jdk8.byte_code.Example4_method_reference
SourceFile: "Example4_method_reference.java"
InnerClasses:
public static #23= #2 of #21; //HttpServer=class jdk8/byte_code/Server$HttpServer of class jdk8/byte_code/Server
public static final #52= #51 of #56; //Lookup=class java/lang/invoke/MethodHandles$Lookup of class java/lang/invoke/MethodHandles
BootstrapMethods:
0: #26 invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
Method arguments:
#27 (Ljava/lang/Object;)Z
#28 invokevirtual jdk8/byte_code/Server$HttpServer.isRunning:()Ljava/lang/Boolean;
#29 (Ljdk8/byte_code/Server$HttpServer;)Z
minor version: 0
major version: 52
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Methodref #7.#20 //java/lang/Object."<init>":()V
#2 = Class #22 //jdk8/byte_code/Server$HttpServer
#3 = Methodref #2.#20 // jdk8/byte_code/Server$HttpServer."<init>":()V
#4 = InvokeDynamic #0:#30 // #0:test:()Ljava/util/function/Predicate;
#5 = Methodref #31.#32 // jdk8/byte_code/WaitFor.waitFor:(Ljava/lang/Object;Ljava/util/function/Predicate;)V
#6 = Class #33 // jdk8/byte_code/Example4_method_reference
#7 = Class #34 // java/lang/Object
#8 = Utf8 <init>
#9 = Utf8 ()V
#10 = Utf8 Code
#11 = Utf8 LineNumberTable
#12 = Utf8 LocalVariableTable
#13 = Utf8 this
#14 = Utf8 Ljdk8/byte_code/Example4_method_reference;
#15 = Utf8 example
#16 = Utf8 Exceptions
#17 = Class #35 // java/lang/InterruptedException
#18 = Utf8 SourceFile
#19 = Utf8 Example4_method_reference.java
#20 = NameAndType #8:#9 // "<init>":()V
#21 = Class #36 // jdk8/byte_code/Server
#22 = Utf8 jdk8/byte_code/Server$HttpServer
#23 = Utf8 HttpServer
#24 = Utf8 InnerClasses
#25 = Utf8 BootstrapMethods
#26 = MethodHandle #6:#37 // invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#27 = MethodType #38 // (Ljava/lang/Object;)Z
#28 = MethodHandle #5:#39 // invokevirtual jdk8/byte_code/Server$HttpServer.isRunning:()Ljava/lang/Boolean;
#29 = MethodType #40 // (Ljdk8/byte_code/Server$HttpServer;)Z
#30 = NameAndType #41:#42 // test:()Ljava/util/function/Predicate;
#31 = Class #43 //jdk8/byte_code/WaitFor
#32 = NameAndType #44:#45 // waitFor:(Ljava/lang/Object;Ljava/util/function/Predicate;)V
#33 = Utf8 jdk8/byte_code/Example4_method_reference
#34 = Utf8 java/lang/Object
#35 = Utf8 java/lang/InterruptedException
#36 = Utf8 jdk8/byte_code/Server
#37 = Methodref #46.#47 // java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#38 = Utf8 (Ljava/lang/Object;)Z
#39 = Methodref #2.#48 // jdk8/byte_code/Server$HttpServer.isRunning:()Ljava/lang/Boolean;
#40 = Utf8 (Ljdk8/byte_code/Server$HttpServer;)Z
#41 = Utf8 test
#42 = Utf8 ()Ljava/util/function/Predicate;
#43 = Utf8 jdk8/byte_code/WaitFor
#44 = Utf8 waitFor
#45 = Utf8 (Ljava/lang/Object;Ljava/util/function/Predicate;)V
#46 = Class #49 // java/lang/invoke/LambdaMetafactory
#47 = NameAndType #50:#53 // metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#48 = NameAndType #54:#55 // isRunning:()Ljava/lang/Boolean; #49 = Utf8 java/lang/invoke/LambdaMetafactory
#50 = Utf8 metafactory
#51 = Class #57 // java/lang/invoke/MethodHandles$Lookup
#52 = Utf8 Lookup
#53 = Utf8 (Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#54 = Utf8 isRunning
#55 = Utf8 ()Ljava/lang/Boolean;
#56 = Class #58 // java/lang/invoke/MethodHandles
#57 = Utf8 java/lang/invoke/MethodHandles$Lookup
#58 = Utf8 java/lang/invoke/MethodHandles
{
public jdk8.byte_code.Example4_method_reference();
descriptor: ()V
flags: ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokespecial #1 // Method java/lang/Object."":()V
4: return
LineNumberTable:
line 7: 0
LocalVariableTable:
Start Length Slot Name Signature
0 5 0 this Ljdk8/byte_code/Example4_method_reference; void example() throws java.lang.InterruptedException;
descriptor: ()V
flags:
Code:
stack=2, locals=1, 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: invokedynamic #4, 0 // InvokeDynamic #0:test:()Ljava/util/function/Predicate;
12: invokestatic #5 // Method jdk8/byte_code/WaitFor.waitFor:(Ljava/lang/Object;Ljava/util/function/Predicate;)V
15: return
LineNumberTable:
line 11: 0
line 12: 15
LocalVariableTable:
Start Length Slot Name Signature
0 16 0 this Ljdk8/byte_code/Example4_method_reference;
Exceptions:
throws java.lang.InterruptedException
}package jdk8.byte_code;
import static jdk8.byte_code.Server.*;
import static jdk8.byte_code.WaitFor.waitFor;
public class Example5 {
// closure
void example() throws InterruptedException {
Server server = new HttpServer();
waitFor(() -> !server.isRunning());
}
}Classfile Example5.class
Last modified 08-May-2014; size 1470 bytes
MD5 checksum 7dd0f577d4b4b903500264acf9649c30
Compiled from "Example5.java"
public class jdk8.byte_code.Example5
SourceFile: "Example5.java"
InnerClasses:
public static #31= #2 of #29; //HttpServer=class jdk8/byte_code/Server$HttpServer of class jdk8/byte_code/Server
public static final #68= #67 of #70; //Lookup=class java/lang/invoke/MethodHandles$Lookup of class java/lang/invoke/MethodHandles
BootstrapMethods:
0: #34 invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
Method arguments:
#35 ()Ljava/lang/Boolean; // <-- signature and return type of the SAM method to be implemented by the lambda
#36 invokestatic jdk8/byte_code/Example5.lambda$example$35:(Ljdk8/byte_code/Server;)Ljava/lang/Boolean;
#35 ()Ljava/lang/Boolean; // <-- signature and return type to be enforced at invocation time
minor version: 0
major version: 52
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Methodref #10.#28 //java/lang/Object."<init>":()V
#2 = Class #30 //jdk8/byte_code/Server$HttpServer
#3 = Methodref #2.#28 // jdk8/byte_code/Server$HttpServer."<init>":()V
#4 = InvokeDynamic #0:#37 // #0:isSatisfied:(Ljdk8/byte_code/Server;)Ljdk8/byte_code/Condition;
#5 = Methodref #38.#39 // jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
#6 = InterfaceMethodref #29.#40 // jdk8/byte_code/Server.isRunning:()Ljava/lang/Boolean;
#7 = Methodref #41.#42 // java/lang/Boolean.booleanValue:()Z
#8 = Methodref #41.#43 // java/lang/Boolean.valueOf:(Z)Ljava/lang/Boolean;
#9 = Class #44 // jdk8/byte_code/Example5
#10 = Class #45 // java/lang/Object
#11 = Utf8 <init>
#12 = Utf8 ()V
#13 = Utf8 Code
#14 = Utf8 LineNumberTable
#15 = Utf8 LocalVariableTable
#16 = Utf8 this
#17 = Utf8 Ljdk8/byte_code/Example5;
#18 = Utf8 example
#19 = Utf8 server
#20 = Utf8 Ljdk8/byte_code/Server;
#21 = Utf8 Exceptions
#22 = Class #46 // java/lang/InterruptedException
#23 = Utf8 lambda$example$35
#24 = Utf8 (Ljdk8/byte_code/Server;)Ljava/lang/Boolean;
#25 = Utf8 StackMapTable
#26 = Utf8 SourceFile
#27 = Utf8 Example5.java
#28 = NameAndType #11:#12 // "<init>":()V
#29 = Class #47 // jdk8/byte_code/Server
#30 = Utf8 jdk8/byte_code/Server$HttpServer
#31 = Utf8 HttpServer
#32 = Utf8 InnerClasses
#33 = Utf8 BootstrapMethods
#34 = MethodHandle #6:#48 // invokestatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#35 = MethodType #49 // ()Ljava/lang/Boolean;
#36 = MethodHandle #6:#50 // invokestatic jdk8/byte_code/Example5.lambda$example$35:(Ljdk8/byte_code/Server;)Ljava/lang/Boolean;
#37 = NameAndType #51:#52 // isSatisfied:(Ljdk8/byte_code/Server;)Ljdk8/byte_code/Condition;
#38 = Class #53 // jdk8/byte_code/WaitFor
#39 = NameAndType #54:#55 // waitFor:(Ljdk8/byte_code/Condition;)V
#40 = NameAndType #56:#49 // isRunning:()Ljava/lang/Boolean;
#41 = Class #57 // java/lang/Boolean
#42 = NameAndType #58:#59 // booleanValue:()Z
#43 = NameAndType #60:#61 // valueOf:(Z)Ljava/lang/Boolean;
#44 = Utf8 jdk8/byte_code/Example5
#45 = Utf8 java/lang/Object
#46 = Utf8 java/lang/InterruptedException
#47 = Utf8 jdk8/byte_code/Server
#48 = Methodref #62.#63 // java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#49 = Utf8 ()Ljava/lang/Boolean;
#50 = Methodref #9.#64 // jdk8/byte_code/Example5.lambda$example$35:(Ljdk8/byte_code/Server;)Ljava/lang/Boolean;
#51 = Utf8 isSatisfied
#52 = Utf8 (Ljdk8/byte_code/Server;)Ljdk8/byte_code/Condition;
#53 = Utf8 jdk8/byte_code/WaitFor
#54 = Utf8 waitFor
#55 = Utf8 (Ljdk8/byte_code/Condition;)V
#56 = Utf8 isRunning
#57 = Utf8 java/lang/Boolean
#58 = Utf8 booleanValue
#59 = Utf8 ()Z
#60 = Utf8 valueOf
#61 = Utf8 (Z)Ljava/lang/Boolean;
#62 = Class #65 // java/lang/invoke/LambdaMetafactory
#63 = NameAndType #66:#69 // metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#64 = NameAndType #23:#24 // lambda$example$35:(Ljdk8/byte_code/Server;)Ljava/lang/Boolean;
#65 = Utf8 java/lang/invoke/LambdaMetafactory
#66 = Utf8 metafactory
#67 = Class #71 // java/lang/invoke/MethodHandles$Lookup
#68 = Utf8 Lookup
#69 = Utf8 (Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
#70 = Class #72 //java/lang/invoke/MethodHandles
#71 = Utf8 java/lang/invoke/MethodHandles$Lookup
#72 = Utf8 java/lang/invoke/MethodHandles
{
public jdk8.byte_code.Example5();
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/Example5;
void example() throws java.lang.InterruptedException;
descriptor: ()V
flags:
Code:
stack=2, 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: aload_1
9: invokedynamic #4, 0 // InvokeDynamic #0:isSatisfied:(Ljdk8/byte_code/Server;)Ljdk8/byte_code/Condition;
14: invokestatic #5 // Method jdk8/byte_code/WaitFor.waitFor:(Ljdk8/byte_code/Condition;)V
17: return
LineNumberTable:
line 10: 0
line 11: 8
line 12: 17
LocalVariableTable:
Start Length Slot Name Signature
0 18 0 this Ljdk8/byte_code/Example5;
8 10 1 server Ljdk8/byte_code/Server;
Exceptions:
throws java.lang.InterruptedException
}