JRuby Embed (aka RedBridge): General Discussion: RedBridge Embedding tutorials - Encountering NullPointerException in StaticScope

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JRuby Embed (aka RedBridge) was started in May 2009, is owned by yokolet, and has 12 members.

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RedBridge Embedding tutorials - Encountering NullPointerException in StaticScope

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Replies: 0 - Last Post: August 17, 2010 21:20
by: Tim Coffman

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Tim Coffman

Posted: August 17, 2010 21:20 by Tim Coffman

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Following the RedBridge tutorials on embedding JRuby, I have created a scripting container

s_scriptingContainer = new org.jruby.embed.ScriptingContainer (
  org.jruby.embed.LocalContextScope.THREADSAFE,
  org.jruby.embed.LocalVariableBehavior.TRANSIENT
) ;

Then I parsed some code

evalUnit = s_scriptingContainer.parse( "def myfunc\n  puts \"myfunc!\";  end; myfunc()" ) ;

Finally, I tried to run the code:

evalUnit.run()

But I get a NullPointerException at StaticScope.determineModule() line 348 because getEnclosingScope() returns null.
I definitely don't understand why this might be, so if you have any advice I welcome it.

Replies: 0 - Last Post: August 17, 2010 21:20
by: Tim Coffman

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