Hello,
First of all I must say that I have little experience with javassist (I begun
using it last week).
What I need to to is to process a couple of classes searching for any method
containing a specific custom annotation (say pacote.Anotacao).
In the class i declare the method like this (in the Content class):
| @pacote.Anotacao
| public String getDescription()
| {
| return description;
| }
|
With javassist I do the following:
|
| CtClass cc = cp.get(className);
| CtMethod[] methods = cc.getDeclaredMethods();
| for (int i = 0; i < methods.length; i++)
| {
| CtMethod m = methods;
| Object[] annotations = m.getAnnotations();
| }
|
The problem is that m.getAnnotations() rises a java.lang.ClassNotFoundException
when I'm processing the annotated method (see above).
I've inspected javassist's code but I failed to spot what was wrong (I only
noticed that the error rises from a Class.forName(...,...,...) as expected
given the thrown exception.
The pojnt is that this very same class (pacote.Anotacao) is processed in the
same way the class Content is and it loads sucessfully.
Note: I'm lauching the javassist's code from an Ant task, fact that I think its
irrelevant for this case.
Below I show you the stack trace hopping that it helps you helping me :)
| [mytask] java.lang.ClassNotFoundException: pacote.Anotacao
| [mytask] at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
| [mytask] at java.security.AccessController.doPrivileged(Native Method)
| [mytask] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
| [mytask] at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
| [mytask] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
| [mytask] at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| [mytask] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| [mytask] at java.lang.Class.forName0(Native Method)
| [mytask] at java.lang.Class.forName(Class.java:242)
| [mytask] at
javassist.bytecode.annotation.MemberValue.loadClass(MemberValue.java:51)
| [mytask] at
javassist.bytecode.annotation.Annotation.toAnnotationType(Annotation.java:281)
| [mytask] at javassist.CtClassType.toAnnotationType(CtClassType.java:404)
| [mytask] at javassist.CtBehavior.getAnnotations(CtBehavior.java:112)
| [mytask] at injector.Inject.inject(Inject.java:79)
| [mytask] at
antTask.InjectAccessControl.execute(InjectAccessControl.java:56)
| [mytask] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
| [mytask] at org.apache.tools.ant.Task.perform(Task.java:364)
| [mytask] at org.apache.tools.ant.Target.execute(Target.java:341)
| [mytask] at org.apache.tools.ant.Target.performTasks(Target.java:369)
| [mytask] at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
| [mytask] at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
| [mytask] at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
| [mytask] at
org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
| [mytask] at
org.apache.tools.ant.Project.executeTargets(Project.java:1068)
| [mytask] at
org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
| [mytask] at
org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
|
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