BSF interface - apply nonfunctional with parameters

Calling the BSF interface apply with a non-empty Vector of names and objects results in an IndexOutOfBoundsException:

BSFManager m = new BSFManager();
Vector<String> names = new Vector<String>();
Vector<Object> objects = new Vector<Object>();
names.add("activity");
objects.add(new Integer(1));
m.apply("ruby", "(java)", 1,1, "puts \"Hello, world: #

\" ", names, objects );

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
at org.jruby.runtime.scope.ManyVarsDynamicScope.setValueDepthZero(ManyVarsDynamicScope.java:158)
at org.jruby.runtime.scope.ManyVarsDynamicScope.setValue(ManyVarsDynamicScope.java:151)
at org.jruby.javasupport.bsf.JRubyEngine.apply(JRubyEngine.java:78)
at org.apache.bsf.BSFManager$1.run(BSFManager.java:215)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.bsf.BSFManager.apply(BSFManager.java:212)
at de.lerncultur.script.TestRuby.main(TestRuby.java:25)

As far as I can see, the ManyVarsDynamic scope gets created too early in this case. It inherits a variable count of "0" from its enclosing static scope. Later, the variable names are set in the static scope, but that does not result in a recreationg of the dynamic scope. That's why the actual value assignment fails.