Exception occurred while generating glue code

I have started using gluegen and I'm trying to generate the JNI interface for a very simple C header that has one simpe function.

java -jar gluegen.jar -C<config file> <my header file>

But I'm getting the following exception:

Exception in thread "main" java.lang.RuntimeException: Exception occurred while generating glue code.
        at com.jogamp.gluegen.GlueGen.run(GlueGen.java:307)
        at com.jogamp.gluegen.GlueGen.main(GlueGen.java:367)
Caused by: java.lang.RuntimeException: Error while emitting binding for "foo"
        at com.jogamp.gluegen.JavaEmitter.emitFunctions(JavaEmitter.java:437)
        at com.jogamp.gluegen.GlueGen.run(GlueGen.java:300)
        ... 1 more
Caused by: java.lang.NullPointerException
        at com.jogamp.gluegen.FunctionEmitter.emitDocComment(FunctionEmitter.java:140)
        at com.jogamp.gluegen.FunctionEmitter.emit(FunctionEmitter.java:100)
        at com.jogamp.gluegen.FunctionEmitter.emit(FunctionEmitter.java:111)
        at com.jogamp.gluegen.JavaEmitter.emitFunctions(JavaEmitter.java:433)
        ... 2 more

It seems that it can't write the output file even though there is write permission to that folder. Any idea why?

Thanks ..

Amgad

Hi

What is the path of the output file? Maybe GlueGen wrongly treats it.

On 01/20/2014 10:21 PM, abassili [via jogamp] wrote:
> I have started using gluegen and I'm trying to generate the JNI interface for
> a very simple C header that has one simpe function.
>
> java -jar gluegen.jar -C<config file> <my header file>
>
> But I'm getting the following exception:
>

I glanced at the GlueGen source code .. and it seems that thw 'writer'
instance as set and passed-through via the ctor is 'null'.

Please create a bug report with:
  - detailed description how to reproduce it

  - a little project w/ all data required to reproduce it,
    _please_ make this as small and tiny as possible!

seems like a setup issue, however, we shall not do a NPE.

Thank you!

~Sven

Here is what I have in the configuration file:

Package testfunction Style AllStatic JavaClass TestFunction JavaOutputDir c:\java NativeOutputDir c:\java

Yes I looked at the source code as well, and you are right it seems that the writer is null but I'm not sure why. Should not there be a default output directory at least? How do I pass the path & name for the output file?

Any ideas? I am just working with a very simple header of one function only.

Thanks.