Help with some traces in a productive legacy system ZUL files

asked 2013-04-01 22:33:14 +0800

javiut
90 ● 1 ● 5

hey guys i am quite new to ZK this awesome framework we are using ZK 5.0.2 in a legacy system have some time in production we are receiving some errors in some clients the trace dont tell you much because we dont know which zul is the error generate i will post here the traces and i hope somebody with more expertise will guide throught.

first error.

Mar 25, 2013 4:09:48 PM org.zkoss.zk.ui.impl.UiEngineImpl handleError:1280
SEVERE: >>java.lang.NullPointerException: Null Pointer in Method Invocation
at bsh.Name.invokeMethod(Unknown Source)
at bsh.BSHMethodInvocation.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.BSHBinaryExpression.eval(Unknown Source)
at bsh.BSHIfStatement.evaluateCondition(Unknown Source)
at bsh.BSHIfStatement.eval(Unknown Source)
at bsh.BSHBlock.evalBlock(Unknown Source)
at bsh.BSHBlock.eval(Unknown Source)
at bsh.BshMethod.invokeImpl(Unknown Source)
at bsh.BshMethod.invoke(Unknown Source)
at bsh.BshMethod.invoke(Unknown Source)
at bsh.Name.invokeLocalMethod(Unknown Source)
at bsh.Name.invokeMethod(Unknown Source)
at bsh.BSHMethodInvocation.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.Interpreter.eval(Unknown Source)
at bsh.Interpreter.eval(Unknown Source)
at org.zkoss.zk.scripting.bsh.BSHInterpreter.exec(BSHInterpreter.java:134)
at     org.zkoss.zk.scripting.util.GenericInterpreter.interpret(GenericInterpreter.java:341)
at org.zkoss.zk.ui.impl.PageImpl.interpret(PageImpl.java:876)
at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:180)
at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138)
at org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1636)
at org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1420)
at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1133)
at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:567)
at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:462)
at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:470)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)

at java.lang.Thread.run(Thread.java:679)

2). error

Mar 25, 2013 12:01:29 PM org.zkoss.zk.ui.impl.DesktopImpl service:713
SEVERE: Desktop z_03q:/Index.zhtml client error: Fallo al procesar[failed to process] 
clearWrongValue
'undefined' is not an object (TypeError)
Mar 25, 2013 12:39:22 PM org.zkoss.zk.ui.impl.UiEngineImpl handleError:1280

i hope somebody can help me out thanks a lot.