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  1. JDK
  2. JDK-5037685

(ann) Class.getAnnotation return null but the annotation is present

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    • Subcomponent:
    • Resolved In Build:
      b51
    • CPU:
      generic, x86
    • OS:
      generic, windows_xp

      Description



      Name: gm110360 Date: 04/26/2004


      FULL PRODUCT VERSION :
      java version "1.5.0-beta"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b32c)
      Java HotSpot(TM) Client VM (build 1.5.0-beta-b32c, mixed mode)

      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows XP [version 5.1.2600]

      A DESCRIPTION OF THE PROBLEM :
      getAnnotation() return null and not the annotation
      as it should be.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      run the class VersionTest

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      1.1
      1.0
      ACTUAL -
      1.1
      java.lang.NullPointerException
      at VersionTest.main(VersionTest.java:30)
      Exception in thread "main"

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      java.lang.NullPointerException
      at VersionTest.main(VersionTest.java:30)
      Exception in thread "main"

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      /*
       * Created on 26 avr. 2004
       *
       */

      import java.lang.annotation.*;
      import static java.lang.annotation.RetentionPolicy.*;

      /**
       * @author remi
       *
       */
      @Version("1.1")
      public class VersionTest {
        
        @Retention(RUNTIME)
        @Version("1.0")
        public @interface Version {
          String value();
        }

        public static void main(String[] args) {
          
          /*for(Annotation ann:Version.class.getAnnotations())
            System.out.println(ann);*/
          
          System.out.println(VersionTest.class.getAnnotation(Version.class).value());
          
          System.out.println(Version.class.getAnnotation(Version.class).value());
         
        }
      }
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      use Version.class.getAnnotations() first !!
      (Incident Review ID: 259841)
      ======================================================================

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              Assignee:
              jjb Josh Bloch
              Reporter:
              gmanwanisunw Girish Manwani (Inactive)
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