[Php-java-bridge-users] Error

I am getting the following error when trying to use lucene search not quite sure what it means... 

Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: Invoke failed: [[o:Hits]]->doc((o:int)[o:String]). Cause: java.lang.IllegalArgumentException VM: 1.4.2@http://gcc.gnu.org/java/" at: #-6 java.lang.reflect.Method.invoke(libgcj.so.7rh) #-5 php.java.bridge.JavaBridge.Invoke(JavaBridge.java:1079) #-4 php.java.bridge.Request.handleRequest(Request.java:405) #0 http://localhost:8080/JavaBridge/java/Java.inc(328): java_ThrowExceptionProxyFactory->getProxy(11, 'java.lang.Strin...', 'java.lang.Illeg...', true) #1 http://localhost:8080/JavaBridge/java/Java.inc(485): java_Arg->getResult(true) #2 http://localhost:8080/JavaBridge/java/Java.inc(491): java_Client->getWrappedResult(true) #3 http://localhost:8080/JavaBridge/java/Java.inc(695): java_Client->getResult() #4 http://localhost:8080/JavaBridge/java/Java.inc(1837): java_Client->invokeMethod(5, 'doc', Array) #5 http://localhost:8080/JavaBridge/java/Java.inc(1955): java_JavaProxy->__call('doc', Array) #6 http://localhost:8080/JavaBridge/java/Java.inc(2131): java_AbstractJav in http://localhost:8080/JavaBridge/java/Java.inc on line 291