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Bean values getting null after set method

chandu ravalpu
Greenhorn

Joined: Jan 11, 2012
Posts: 7
Hi

In the following jsf Program

private String positionName;

public String getPositionName() {
return positionName;
}

public void setPositionName(String positionName) {

this.positionName = positionName;

}

after entering values in jsp page the position name field getting null values?


(error message:hai
hello
java.lang.NullPointerException
at com.PositionDetailsViewBean.createPosition(PositionDetailsViewBean.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:72)
at javax.faces.component.UICommand.broadcast(UICommand.java:312)
at org.ajax4jsf.framework.ajax.AjaxViewRoot.processEvents(AjaxViewRoot.java:180)
at org.ajax4jsf.framework.ajax.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:158)
at org.ajax4jsf.framework.ajax.AjaxViewRoot.processApplication(AjaxViewRoot.java:346)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)
)

can any one solve this? why it is happening so?

Thanks in Advance



Seetharaman Venkatasamy
Ranch Hand

Joined: Jan 28, 2008
Posts: 5575

Welcome to JavaRanch

chandu ravalpu wrote:
after entering values in jsp page the position name field getting null values?

can you post the code ?
chandu ravalpu
Greenhorn

Joined: Jan 11, 2012
Posts: 7
hi ya am sending the code

//bean class


//viewbean



Seetharaman Venkatasamy
Ranch Hand

Joined: Jan 28, 2008
Posts: 5575


I dont see an Object assigned to the reference positionDetailsBean before this statement.

and please use code tag , while posting your code. this time I have added them for you
 
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subject: Bean values getting null after set method