JavaFileManager.getModuleLocation() problem

[Konstantin Barzilovich]

Hello,

I try to use method getModuleLocation() like this:

JavaFileManager.Location location =  
ToolProvider.getSystemJavaCompiler().getStandardFileManager(null, null,  
null).getModuleLocation(StandardLocation.SOURCE_PATH, "myModule");

But variable 'location' is always null.
I expected UnsupportedOperationException or some result, but not null.
What am I doing wrong?

-- 
Thanks,
Konstantin.