Filer.getResource() always throws FileNotFoundException

[James Perkins]

The implementation of javax.annotation.processing.Filer 
(com.sun.tools.javac.processing.JavacFiler.java) always throws a 
FileNotFoundException when invoking getResource(). This appears to be a 
bug introduced in commit 
http://hg.openjdk.java.net/jdk7/jdk7/langtools/diff/f3323b1c65ee/src/share/classes/com/sun/tools/javac/processing/JavacFiler.java.  
The method should be using JavaFileManager.getFileForOutput() not 
JavaFileManager.getFileForInput().

My testing with the following change works:

     public FileObject getResource(JavaFileManager.Location location,
                                   CharSequence pkg,
                                   CharSequence relativeName) throws 
IOException {
         String strPkg = pkg.toString();
         if (strPkg.length() > 0)
             checkName(strPkg);

         // TODO: Only support reading resources in selected output
         // locations?  Only allow reading of non-source, non-class
         // files from the supported input locations?
         FileObject fileObject = fileManager.getFileForOutput(location, 
pkg.toString(), relativeName.toString(), null);
         if (fileObject == null) {
             String name = (pkg.length() == 0)
                     ? relativeName.toString() : (pkg + "/" + relativeName);
             throw new FileNotFoundException(name);
         }

         // If the path was already opened for writing, throw an exception.
         checkFileReopening(fileObject, false);
         return new FilerInputFileObject(fileObject);
     }

I have filed an issue for this already 
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7057153. Not sure 
what I did wrong, but the bugs not showing up for me yet.

-- 
James R. Perkins
JBoss by Red Hat