#414 BeansWrapper.isJavaRebelAvailable() causes eclipse to suspend in debug mode

[Alex Foran]

```
private static boolean isJavaRebelAvailable() {
    try {
        JavaRebelIntegration.testAvailability();
        return true;
    }
    catch(NoClassDefFoundError e) {
        return false;
    }
}
```

Loading JavaRebelIntegration throws a ClassNotFoundException (default classloader), which Eclipse (Kepler) by default suspends on. This makes working with freemarker very annoying.

[Dániel Dékány]

Well, disable suspension on that exception... A lot of other libraries detect availability of other classes like this, and I believe there's no better way of doing that. Or is there?

(BTW, I used to debug FreeMarker sometimes, but for me Eclipse doesn't suspend on it.)

[deadlycheese]

"closed invalid"? I am experiencing this issue as well.

I think you also need to catch "ClassNotFoundException" to overcome this problem.

http://stackoverflow.com/questions/1457863/what-is-the-difference-between-noclassdeffounderror-and-classnotfoundexception

[deadlycheese]

For anyone else experiencing this problem, here is a simple workaround:

    protected Configuration getFreemarkerConfiguration() throws ClassNotFoundException
    {
        return new Configuration();
        // the bug: http://sourceforge.net/p/freemarker/bugs/414/ means that
        // we have to wrap a "throws ClassNotFoundException" around this API ...  
    }

Then, you can call the method and swallow the ClassNotFoundException:

        Configuration configure = null;
        try
        {
            configure = getFreemarkerConfiguration();
        }
        catch (ClassNotFoundException cnfe)
        {
        }
        // continue normal processing ...

[Dániel Dékány]

It only meant to throw NoClassDefFoundError, not ClassNotFoundException. Does it throw ClassNotFoundException for you? Can you paste the stack trace?

[Dániel Dékány]

OK, my bad. JRebel was still in my classpath. Without that Eclipse debug has suspended execution for me too, and so I could find a way with which it doesn't do that.