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Adding a Method Annotation not working as expected...
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created by <a href="http://community.jboss.org/people/apinke">Amit P</a> in <i>Javassist</i> - <a href="http://community.jboss.org/message/629947#629947">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi All, </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I have a few classes ( in a supplied jar) in which I am trying to mark certain specifc methods as "Deprecated" .</p><p>I am able to use javassist and add the annotation to the method (code attached to the end of this mail) but Eclipse refuses to identify that as a "Deprecated" method at compile time.</p><p>I decompiled and verified that there is a "@Deprecated" annotation on the method. I also used ASM compare between a class in which I added a @Deprecated and this class in which javassist  added the annotation and notice one strange thing : the access flags are different</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>"normal" method :</p><p>// DEPRECATED</p><p>  // access flags 0x20001</p><p>  public getName()Ljava/lang/String;</p><p>  @Ljava/lang/Deprecated;()</p><p>   L0</p><p>    LINENUMBER 7 L0</p><p><span style="color: #3f7f5f; font-size: 10pt;">  </span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>javassist annotated method :</p><p>   // access flags 0x1</p><p>  public getName()Ljava/lang/String;</p><p>  @Ljava/lang/Deprecated;()</p><p>   L0</p><p>    LINENUMBER 7 L0</p><p align="left"><span style="font-size: 10pt;">  </span></p><p><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left">Questions :</p><p align="left">1) is there a problem in the way the Annotation is being added ?</p><p align="left">2) Cant I add a java.lang.Deprecated annotation to a method ? is there some special modifier or instruction to be used to add the inbuilt java Annotations ?</p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left">Any help or pointer is appreciated !! </p><p align="left"><span style="font-size: 10pt;">I tried to make it a "invisibleTag" ,  specify it as "Deprecated" , "@Deprecated" but the IDE refuses to treat that as a Deprecated API.</span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left">thanks</p><p align="left">Pat</p><p align="left">----</p><p align="left">code snippet :</p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left"><span style="font-size: 10pt;"><span id="mce_marker"></span></span> CtMethod[] methods = cc.getMethods();<br/>  for (int k = 0; k < methods.length; k++) {<br/>   CtMethod met = methods[k];<br/>    System.out.println("Found Method --> " + met.getName());<br/>    try{<br/>     ClassFile ccFile = cc.getClassFile(); <br/>     ConstPool constpool = ccFile.getConstPool(); <br/>     <br/>     AnnotationsAttribute attr = new AnnotationsAttribute(constpool, AnnotationsAttribute.visibleTag); <br/>     Annotation annot = new Annotation("java.lang.Deprecated", constpool);<br/>     attr.addAnnotation(annot); <br/>     met.getMethodInfo().addAttribute(attr);  <br/>     <br/>     <br/>    }catch(Exception e){<br/>     System.out.println("Skipping method:-->" + met.getName() +"Reason:" + e.getMessage() );<br/>    }<br/>  }</p><p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p></div>
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