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POJava 1.5.0.12 and custom Annotations at Runtime
primarykey
Id
4714484
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AcceptedAnswerId
4773512
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1
ClosedDate
CommentCount
8
CommunityOwnedDate
CreationDate
2011-01-17T14:55:02.560
FavoriteCount
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LastActivityDate
2011-01-23T11:14:58.327
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LastEditorUserId
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LastEditorDisplayName
text
Body
I'm in a project where I need to use the above specific JAVA Version. And I wan't to use a custom annotation and query it's presence during RUNTIME using reflection. So I wrote an annotation, a class to annotate and a test class. The problem ist that, the annotation is not there. When I use one of the built in Annotations, everything is fine, the annotation is there. When I try my code under JAVA 1.6 everything is fine... Is there a known bug in this java version or do I need to add something more? BR Markus The code: <pre><code>// The annotation import java.lang.annotation.Retention; import static java.lang.annotation.RetentionPolicy.RUNTIME; @Retention(RUNTIME) public @interface GreetsTheWorld { public String value(); } // The Annotated Class @GreetsTheWorld("Hello, class!") public class HelloWorld { @GreetsTheWorld("Hello, field!") public String greetingState; @GreetsTheWorld("Hello, constructor!") public HelloWorld() { } @GreetsTheWorld("Hello, method!") public void sayHi() { } } // The test import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.lang.reflect.Method; public class HelloWorldAnnotationTest { public static void main( String[] args ) throws Exception { //access the class annotation Class<HelloWorld> clazz = HelloWorld.class; System.out.println( clazz.getAnnotation( GreetsTheWorld.class ) ); //access the constructor annotation Constructor<HelloWorld> constructor = clazz.getConstructor((Class[]) null); System.out.println(constructor.getAnnotation(GreetsTheWorld.class)); //access the method annotation Method method = clazz.getMethod( "sayHi" ); System.out.println(method.getAnnotation(GreetsTheWorld.class)); //access the field annotation Field field = clazz.getField("greetingState"); System.out.println(field.getAnnotation(GreetsTheWorld.class)); } } </code></pre>
Tags
<java><annotations><runtime>
Title
Java 1.5.0.12 and custom Annotations at Runtime
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PostAcceptedAnswerId
1. PO
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 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USMarkus Alexander
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1. PL
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1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. PO
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 PTAnswer
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1. VO
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 POJava 1.5.0.12 and custom Annotations at Runtime
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2. VO
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 POJava 1.5.0.12 and custom Annotations at Runtime
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3. VO
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 POJava 1.5.0.12 and custom Annotations at Runtime
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 This table or related slice is empty.
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