Applet throws null pointer...

I have weired problem... it was working fine. I have applet which connects to chat server from anywhere from the the browser but my own server computer. Whenever i try to load from my local machine it either throws null pointer or applet load failed error. neither it works from appletviewer.
Remember , it works fine from anywhere else.. so all .class files etc. etc. are valid...
Thanks

Just in addition to above,
actually it throws java.secrity.AccessControlException:access denied (java.net.SocketPermission "My Ip":9991 conect resolve..
But weired thing ... from same computer when i run appletviewer from Net Beans IDE ... it connects fine to my sockets...

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WPUMFactory.getUserFactory() throws null pointer exception

Hi,
I am trying to use KM API's to read files from KM repository. I am using the below code as mentioned in the blog: How to download KM documents using Web Dynpro Java
Below is my code:
IWDClientUser wdClientUser = WDClientUser.getCurrentUser();
com.sap.security.api.IUser sapUser = wdClientUser.getSAPUser();
IUser epUser = WPUMFactory.getUserFactory().getEP5User(sapUser);
However the line WPUMFactory.getUserFactory() throws null pointer exception. Can some one please help on why these happens as these seems to be the standard code to read a file from KM.
Thanks.
Regards,
Ponraj M

Hi Ponraj ,
Instead of fetching the current logged on user , use the below line to set the resource context and see if it helps .
com.sapportals.wcm.repository.IResourceContext resourceContext = ResourceFactory.getInstance().getServiceContext("cmadmin_service");
cmadmin_service is a existing user that can be used to access KM resources .
Regards
Mayank

Vector.clear() throws null pointer exception

is there anything wrong in my code. when i try to clear the vector irrespective of whether i add elements to it or not, if there are no elements added to the vector v1.clear() it throws null pointer exception
Vector v1 = new Vector(1,1);
v1.clear()

And the guessing game continues... anyone for a shortctu to duplicate this problem?
public class NullVectorCreator
    private Vector v1;//just love the name, so clear and unambiguous... :)
    public NullVectorCreator
         Vector v1 = new Vector();//well done - a local variable masquerading as
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    public Vector getVector()
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[svn] 4619: Bug: BLZ-313 - HTTPProxyService throws null pointer when non-turnkey BlazeDS app is deployed to Tomcat 6 .0.16

Revision: 4619
Author: [email protected]
Date: 2009-01-22 10:47:12 -0800 (Thu, 22 Jan 2009)
Log Message:
Bug: BLZ-313 - HTTPProxyService throws null pointer when non-turnkey BlazeDS app is deployed to Tomcat 6.0.16
QA: Yes
Doc: No
Checkintests: Pass
Ticket Links:
http://bugs.adobe.com/jira/browse/BLZ-313
Modified Paths:
blazeds/trunk/modules/proxy/src/flex/messaging/services/HTTPProxyService.java

I submitted a bug, and this was fixed in the latest trunk
version.

Throwing Null Pointer Exception

Throwing Null Pointer Exception on this line:
secondDVD = dvdArray[j+1].getTitle();
What could be the problem?
<code>
if (menuChoice.equals("1"))
boolean done = false;
DVD swapDVD = new DVD();
int pass;
int passLimit = dvdArray.length - 1;
String firstDVD;
String secondDVD;
for (pass = 1; !done && pass <= passLimit; pass++)
done = true;
for (j=0; j < (dvdArray.length - pass); j++)
firstDVD = dvdArray[j].getTitle();
secondDVD = dvdArray[j+1].getTitle();
if (firstDVD.compareTo(secondDVD) > 0)
swapDVD = dvdArray[j];
dvdArray[j] = dvdArray[j+1];
dvdArray[j+1] = swapDVD;
done = false;
for (j=0; j<numOfDVD; j++);
System.out.println(dvdArray[j].getTitle());
</code

ChuckBing wrote:
Identify the line that is createing the error, and post all of the variable values that are involved in that line. Use a System.out.println statement to get the values, placing it immediately before the line's execution.
Also. use code tags when posting code:
[code]...your code here...
[/code]
He tried to, he used <code> tags by mistake.

JAX-WS Client throws NULL Pointer Exception in NW 7.1 SP3 and higher

All,
My JAX-WS client is throwing an exception when attempting to create a client to connect to the calculation service. The exception is coming out of the core JAX-WS classes that are part of NetWeaver. (see exception below)
Caused by: java.lang.NullPointerException
     at com.sap.engine.services.webservices.espbase.client.jaxws.core.SAPServiceDelegate.createDispatchContextExistingPort(SAPServiceDelegate.java:440)
     at com.sap.engine.services.webservices.espbase.client.jaxws.core.SAPServiceDelegate.createDispatchContext(SAPServiceDelegate.java:475)
     at com.sap.engine.services.webservices.espbase.client.jaxws.core.SAPServiceDelegate.createDispatch(SAPServiceDelegate.java:492)
     at com.sap.engine.services.webservices.espbase.client.jaxws.core.SAPServiceDelegate.createDispatch(SAPServiceDelegate.java:484)
     at javax.xml.ws.Service.createDispatch(Service.java:166)
I have done some research and it appears that as of NetWeaver 7.1 SP3 SAP stopped using the SUN JAX-WS runtime and implemented their own SAP JAX-WS runtime. I also took the time to decompile the jar file that contained the SAPServiceDelegate class which is throwing the null pointer exception. (see method from SAPServiceDelegate below)
    private ClientConfigurationContext createDispatchContextExistingPort(QName portName, JAXBContext jaxbContext)
        BindingData bindingData;
        InterfaceMapping interfaceMap;
        InterfaceData interfaceData;
        bindingData = clientServiceCtx.getServiceData().getBindingData(portName);
        if(bindingData == null)
            throw new WebServiceException((new StringBuilder()).append("Binding data '").append(portName.toString()).append("' is missing!").toString());
        QName bindingQName = new QName(bindingData.getBindingNamespace(), bindingData.getBindingName());
        interfaceMap = getInterfaceMapping(bindingQName, clientServiceCtx);
        interfaceData = getInterfaceData(interfaceMap.getPortType());
        ClientConfigurationContext result = DynamicServiceImpl.createClientConfiguration(bindingData, interfaceData, interfaceMap, null, jaxbContext, getClass().getClassLoader(), clientServiceCtx, new SOAPTransportBinding(), false, 1);
        return result;
        WebserviceClientException x;
        x;
        throw new WebServiceException(x);
The exception is being throw on the line where the interfaceMap.getPortType() is being passed into the getInterfaceData method. I checked the getInterfaceMapping method which returns the interfaceMap (line above the line throwing the exception). This method returns NULL if an interface cannot be found. (see getInterfaceMapping method below)
   public static InterfaceMapping getInterfaceMapping(QName bindingQName, ClientServiceContext context)
        InterfaceMapping interfaces[] = context.getMappingRules().getInterface();
        for(int i = 0; i < interfaces.length; i++)
            if(bindingQName.equals(interfaces<i>.getBindingQName()))
                return interfaces<i>;
        return null;
What appears to be happening is that the getInterfaceMapping method returns NULL then the next line in the createDispatchContextExistingPort method attempts to call the getPortType() method on a NULL and throws the Null Pointer Exception.
I have included the code we use to create a client below. It works fine on all the platforms we support with the exception of NetWeaver 7.1 SP3 and higher (I already checked SP5 as well)
      //Create URL for service WSDL
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      QName serviceQName = new QName(targetNamespace, "WSService");
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      QName portQName = new QName(targetNamespace, "WSPortName");
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      Service service = Service.create(serviceURL, serviceQName);
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      serviceDispatch = service.createDispatch(portQName, Source.class, Service.Mode.PAYLOAD);
What do I need to change in order to create a JAX-WS dispatch client on top of the SAP JAX-WS runtime?

Hi Guys,
I am getting the same error. Any resolution or updates on this.
Were you able to fix this error.
Thanks,
Yomesh

GetUserRoles in viewobject throws null pointer exception

Hello,
I've set up security for our jsf-adf-bc4j application.
I now want to get the user role in our viewobject.
I use the following code :
SessionImpl session = (SessionImpl) this.getDBTransaction().getSession();
String[] roles = session.getUserRoles();
for (String role : roles){
System.out.println(role);
This throws a null pointer exception at the"System.out.println(role);" line .
The user has a role (I can read the role in the viewcontroller project)
In the view object i can also get the session.getUserPrincipalName(). This works fine.
Can anybody help me with this problem ?

You define a local ArrayList here:public MonthlySchedule()
ArrayList<Request> monthlyschedule= new ArrayList<Request>() ;
}Just instanciate the instance variable.

Invalidate() throws null pointer exception

Hi experts,
Any idea why calling invalidate will throw a null pointer exception.
if (detailNode != null)
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This is the stack trace:
java.lang.NullPointerException
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     at com.sap.tc.webdynpro.progmodel.context.Node.onNodeInvalidating(Node.java:1447)
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     at com.sap.tc.webdynpro.progmodel.context.Node.invalidate(Node.java:583)
     at com.sap.tc.webdynpro.progmodel.context.Node.invalidate(Node.java:580)
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     at com.diagonal.mmm.view.wdp.InternalMenuDetailsView.wdInvokeEventHandler(InternalMenuDetailsView.java:999)
     at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87)
     at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67)
     at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doHandleActionEvent(WindowPhaseModel.java:420)
     at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:132)
     at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:335)
     at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)
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Hello,
we are having the save Exception.
We are not working with modelNodes only with valueNodes.
We can reproduce the Exception, when doing the same as Daniel
Daniel Lam wrote:
I get the exception after doing the following:
1. The data from detailNode are displayed in a table.
2. I changed the value of one the field to an invalid text and attempt to save the application. I got a validation error.
3. I changed back to the original value and save again and i got the exception.
How did you solve it?
What are we doing wrong?`
Can somebody help me please?

PortControl throws null pointer

I'm using the JMF to access my hauppage tv card. When I attempt to get the PortControl object, and call the getPorts() method it throws a null pointer exception.
pc = (PortControl) player.getControl("javax.media.control.PortControl");
int ports = pc.getPorts();
I found this same question on google groups, all unanswered. Has anyone run into this before?
- b

alright to answer part of my own question... turns out when I try to get the PortControl object, it returns null. Why would that happen????

Constrctor.newInstance() throwing null pointer exception

hi,
I have the following code:
public class Class_B{
void method1(){
Class clazz = Class.forName("ClassA");
Method method = _clazz.getMethod("notify", new Class[] { this.getClass() });
Constructor constructor = _clazz.getConstructor(); // here am getting InvocationTargetException (exception.getCause() ---> null pointer exception).
Object obj = constructor.newInstance();
public class Class_A{
public Class_A(){}
public void notify(Class_B b){
// do some stuff
Can anybody tell me what makes it to throw a null pointer exception.

paul.miner wrote:
georgemc wrote:
I notice you're obtaining a constructor that takes one argument, but don't pass any such argument into the newInstance invocationActually, OP is obtaining a one-argument method; the constructor requested has no arguments.Yep, I misread his code. Cheers Paul
Anyways, chances are there's an NPE being thrown from the constructor. What happens if you just instantiate it the old-fashioned, non-reflective way?

JFileChooser throws null pointer exception

I'm using JFileChooser in my gui class. After I make my selection in the file chooser it sets off a null pointer exception. I'm running windows xp professiona. It was working perfectly fine till recently.
My code for calling the chooser is:
    JFileChooser chooser = new JFileChooser();
    int returnVal = chooser.showOpenDialog(this);
    if(returnVal == chooser.APPROVE_OPTION){
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      client.setFile(chooser.getSelectedFile());
      jLabel5.setText(chooser.getSelectedFile().getName());
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     at ftpresume.ClientGUI.jButton2_actionPerformed(ClientGUI.java:128)
     at ftpresume.ClientGUI_jButton2_actionAdapter.actionPerformed(ClientGUI.java:174)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1786)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1839)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
     at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:245)
     at java.awt.Component.processMouseEvent(Component.java:5100)
     at java.awt.Component.processEvent(Component.java:4897)
     at java.awt.Container.processEvent(Container.java:1569)
     at java.awt.Component.dispatchEventImpl(Component.java:3615)
     at java.awt.Container.dispatchEventImpl(Container.java:1627)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
     at java.awt.Container.dispatchEventImpl(Container.java:1613)
     at java.awt.Window.dispatchEventImpl(Window.java:1606)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)

I took a look at checking to see if the file is valid, exists, is readable and everything else. Looks like the file that's returned if fine. I'm not sure why my program crashes when I setup the file though. Here's my code from the client.setFile(File f);
public void setFile(File f){
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Call to nodeInfo throws null pointer exception

I have a context node called Subst and want to bind a value set to one of its attributes using a modifiable simple valueset. So I called
wdContext.nodeSubst().getNodeInfo();
and got a null pointer exception because the nodeSubst is null. OK, I have cardinality 0..n, so at the moment I set the value set there is no node instance. But I want to set the value set for all node instances, not only for one. I changed the singleton property and it worked. But I don't understand why there is a difference between singleton or non-singleton and if it is important whether I have a value or model node.
Regards,
Josef

Hi Josef,
Cardinality talks about the collection of the node i.e the number of elements a node can have.
Singleton is about the existence of a node instance with respect to its parent or element collection.
One instance of a singleton child node exists at runtime for one parent node instance. The contents of the child node instance change depending on the lead selection in the parent node. Node instance existence is per node basis.
Whereas, for a non-singleton node, there will be as many number of node instances as there are elements in the parent node. So parent node's cardinality, say 0..n, there will exist n child nodes. So node existence in this case is per element basis.
Regards,
Rajit

Java function with Dynamic config throws null pointer exception

hi Experts,
   I am using dynamic config using java function in my message mapping.
The source message has a field called "fname".
The value of "fname" is the input to my java UDF.
The java UDF code is:
   public String getDynamicFile(String fname, Container container) throws StreamTransformationException{
   String str = fname + ".xml";
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey FileName = DynamicConfigurationKey.create("http:/"+"/sap.com/xi/XI/System/File","FileName");
conf.put(FileName, str);
return str;
   When I test this message mapping I get the following exception:
   Runtime Exception:[java.lang.NullPointerException: while trying to invoke the method com.sap.aii.mapping.api.DynamicConfiguration.put(com.sap.aii.mapping.api.DynamicConfigurationKey, java.lang.String) of an object loaded from local variable '<4>'] in class com.sap.xi.tf._<message mapping>_ method getDynamicFile[test, com.sap.aii.mappingtool.tf7.rt.Context@2e52cb31]
What am I doing wrong in this UDF?
Thanks
Gopal

Hi,
      Your UDF will run fine in an end to end execution,i.e, during runtime. However, if you want to test your message mapping test tab without the dynamic config UDF throwing an exception, encpasulate the code in a try catch block
public String getDynamicFile(String fname, Container container) throws StreamTransformationException{
String str = fname + ".xml";
try{
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey FileName = DynamicConfigurationKey.create("http:/"+"/sap.com/xi/XI/System/File","FileName");
conf.put(FileName, str);
}catch(Exception ex){}
return str;
The above code should run fine when you test in the message mapping test tab.
Regards

Crystal Report throws NULL Pointer Exception from Java

Hi,
<br>
We are using crystal report in our application and we are changing the report datasource with the application datasource through our code. We are using CR4E 2008 to achieve this solution. We are getting a NULLPointerException, when we run the report in Oc4J(Oracle Apps Server) with JDK1.6. Could you please help us in achieving the solution
<br><br>
Exception:
<br>
Connection logon:Database DLL=s(crdb_jdbc.dll);Trusted_Connection=s(true);PreQEServerType=s(JDBC (JNDI));Server
Type=s(JDBC (JNDI));Use JDBC=s(true);Database Class Name=s();JNDI Datasource Name=s(jdbc/1495);Connection URL=s();User ID=s(myapp);Password=
detected an exception: java.lang.NullPointerException
at com.crystaldecisions.reports.queryengine.driverImpl.jdbc.JDBCConnection.Open(Unknown Source)
at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1771)
at com.crystaldecisions.reports.queryengine.Connection.bs(SourceFile:491)
at com.crystaldecisions.reports.queryengine.Connection.t1(SourceFile:2978)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.a(SourceFile:696)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.for(SourceFile:706)
at com.crystaldecisions.reports.reportdefinition.ReportHelper.a(SourceFile:198)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.long(SourceFile:957)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.a(SourceFile:635)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.int(SourceFile:672)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1944)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:661)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.a(SourceFile:167)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.a(SourceFile:529)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.call(SourceFile:527)
at com.crystaldecisions.reports.common.ThreadGuard.syncExecute(SourceFile:102)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.for(SourceFile:525)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.int(SourceFile:424)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.request(SourceFile:352)
at com.businessobjects.sdk.erom.jrc.a.a(SourceFile:54)
at com.businessobjects.sdk.erom.jrc.a.execute(SourceFile:67)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent$a.execute(SourceFile:716)
at com.crystaldecisions.proxy.remoteagent.CommunicationChannel.a(SourceFile:125)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent.a(SourceFile:537)
at com.crystaldecisions.sdk.occa.report.application.ds.a(SourceFile:186)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:1558)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:337)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.export(SourceFile:286)
at com.crystaldecisions.sdk.occa.report.application.AdvancedReportSource.export(SourceFile:209)
at com.mysystems.myapp.common.CrystalRpt.print(CrystalRpt.java:387)
at regular.ShowReport._jspService(_ShowReport.java:277)
at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:350)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
at com.mysystems.myapp.common.ServletFilter.doFilter(ServletFilter.java:107)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:662)
2011-06-27 10:42:03.598 09041510myappt myapp ShowReport.jspService(277) Error while generating crystal report com.crystaldecisions.sdk.occa.report.lib.ReportSDKException: java.lang.NullPointerException---- Error code:-2147467259 Error code name:failed
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:741)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.a(SourceFile:167)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.a(SourceFile:529)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.call(SourceFile:527)
at com.crystaldecisions.reports.common.ThreadGuard.syncExecute(SourceFile:102)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.for(SourceFile:525)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.int(SourceFile:424)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.request(SourceFile:352)
at com.businessobjects.sdk.erom.jrc.a.a(SourceFile:54)
at com.businessobjects.sdk.erom.jrc.a.execute(SourceFile:67)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent$a.execute(SourceFile:716)
at com.crystaldecisions.proxy.remoteagent.CommunicationChannel.a(SourceFile:125)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent.a(SourceFile:537)
at com.crystaldecisions.sdk.occa.report.application.ds.a(SourceFile:186)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:1558)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:337)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.export(SourceFile:286)
at com.crystaldecisions.sdk.occa.report.application.AdvancedReportSource.export(SourceFile:209)
at com.mysystems.myapp.common.CrystalRpt.print(CrystalRpt.java:387)
at regular.ShowReport._jspService(_ShowReport.java:277)
at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:350)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
at com.mysystems.myapp.common.ServletFilter.doFilter(ServletFilter.java:107)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at com.crystaldecisions.reports.queryengine.driverImpl.jdbc.JDBCConnection.Open(Unknown Source)
at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1771)
at com.crystaldecisions.reports.queryengine.Connection.bs(SourceFile:491)
at com.crystaldecisions.reports.queryengine.Connection.t1(SourceFile:2978)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.a(SourceFile:696)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.for(SourceFile:706)
at com.crystaldecisions.reports.reportdefinition.ReportHelper.a(SourceFile:198)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.long(SourceFile:957)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.a(SourceFile:635)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.int(SourceFile:672)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1944)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:661)
... 33 more
Regards,
Karthik.

Hi,
<br>
We are using crystal report in our application and we are changing the report datasource with the application datasource through our code. We are using CR4E 2008 to achieve this solution. We are getting a NULLPointerException, when we run the report in Oc4J(Oracle Apps Server) with JDK1.6. Could you please help us in achieving the solution
<br><br>
Exception:
<br>
Connection logon:Database DLL=s(crdb_jdbc.dll);Trusted_Connection=s(true);PreQEServerType=s(JDBC (JNDI));Server
Type=s(JDBC (JNDI));Use JDBC=s(true);Database Class Name=s();JNDI Datasource Name=s(jdbc/1495);Connection URL=s();User ID=s(myapp);Password=
detected an exception: java.lang.NullPointerException
at com.crystaldecisions.reports.queryengine.driverImpl.jdbc.JDBCConnection.Open(Unknown Source)
at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1771)
at com.crystaldecisions.reports.queryengine.Connection.bs(SourceFile:491)
at com.crystaldecisions.reports.queryengine.Connection.t1(SourceFile:2978)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.a(SourceFile:696)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.for(SourceFile:706)
at com.crystaldecisions.reports.reportdefinition.ReportHelper.a(SourceFile:198)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.long(SourceFile:957)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.a(SourceFile:635)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.int(SourceFile:672)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1944)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:661)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.a(SourceFile:167)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.a(SourceFile:529)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.call(SourceFile:527)
at com.crystaldecisions.reports.common.ThreadGuard.syncExecute(SourceFile:102)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.for(SourceFile:525)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.int(SourceFile:424)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.request(SourceFile:352)
at com.businessobjects.sdk.erom.jrc.a.a(SourceFile:54)
at com.businessobjects.sdk.erom.jrc.a.execute(SourceFile:67)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent$a.execute(SourceFile:716)
at com.crystaldecisions.proxy.remoteagent.CommunicationChannel.a(SourceFile:125)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent.a(SourceFile:537)
at com.crystaldecisions.sdk.occa.report.application.ds.a(SourceFile:186)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:1558)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:337)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.export(SourceFile:286)
at com.crystaldecisions.sdk.occa.report.application.AdvancedReportSource.export(SourceFile:209)
at com.mysystems.myapp.common.CrystalRpt.print(CrystalRpt.java:387)
at regular.ShowReport._jspService(_ShowReport.java:277)
at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:350)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
at com.mysystems.myapp.common.ServletFilter.doFilter(ServletFilter.java:107)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:662)
2011-06-27 10:42:03.598 09041510myappt myapp ShowReport.jspService(277) Error while generating crystal report com.crystaldecisions.sdk.occa.report.lib.ReportSDKException: java.lang.NullPointerException---- Error code:-2147467259 Error code name:failed
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:741)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.a(SourceFile:167)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.a(SourceFile:529)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.call(SourceFile:527)
at com.crystaldecisions.reports.common.ThreadGuard.syncExecute(SourceFile:102)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.for(SourceFile:525)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.int(SourceFile:424)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.request(SourceFile:352)
at com.businessobjects.sdk.erom.jrc.a.a(SourceFile:54)
at com.businessobjects.sdk.erom.jrc.a.execute(SourceFile:67)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent$a.execute(SourceFile:716)
at com.crystaldecisions.proxy.remoteagent.CommunicationChannel.a(SourceFile:125)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent.a(SourceFile:537)
at com.crystaldecisions.sdk.occa.report.application.ds.a(SourceFile:186)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:1558)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:337)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.export(SourceFile:286)
at com.crystaldecisions.sdk.occa.report.application.AdvancedReportSource.export(SourceFile:209)
at com.mysystems.myapp.common.CrystalRpt.print(CrystalRpt.java:387)
at regular.ShowReport._jspService(_ShowReport.java:277)
at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:350)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
at com.mysystems.myapp.common.ServletFilter.doFilter(ServletFilter.java:107)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at com.crystaldecisions.reports.queryengine.driverImpl.jdbc.JDBCConnection.Open(Unknown Source)
at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1771)
at com.crystaldecisions.reports.queryengine.Connection.bs(SourceFile:491)
at com.crystaldecisions.reports.queryengine.Connection.t1(SourceFile:2978)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.a(SourceFile:696)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.for(SourceFile:706)
at com.crystaldecisions.reports.reportdefinition.ReportHelper.a(SourceFile:198)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.long(SourceFile:957)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.a(SourceFile:635)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.int(SourceFile:672)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1944)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:661)
... 33 more
Regards,
Karthik.

jsp:setProperty .. method throws null pointer exception...

my simple jsp page :
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%--
The taglib directive below imports the JSTL library. If you uncomment it,
you must also add the JSTL library to the project. The Add Library... action
on Libraries node in Projects view can be used to add the JSTL 1.1 library.
--%>
<%--
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
--%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
    <h1>JSP Page</h1>
    <jsp:useBean id="user1" class="com.netman.beans.UserBean">
        <jsp:setProperty name="title" property="title" />
        <jsp:setProperty name="name" property="name" />
    </jsp:useBean>
    Name : <%= user1.getName() %><br>
    Title : <%= user1.getTitle() %>
    </body>
</html>
// -- my bean class -- //
package com.netman.beans;
public class UserBean
    private String name;
    private String title;
    /** Creates a new instance of UserBean */
    public UserBean()
    public void setName(String name)
        this.name = name;
    public String getName()
        return name;
    public void setTitle(String title)
        this.title = title;
    public String getTitle()
        return title;
}when I try to view the jsp page, i am getting the following exception :
org.apache.jasper.JasperException: Exception in JSP: /test.jsp:25
22: <h1>JSP Page</h1>
23:
24: <jsp:useBean id="user1" class="com.netman.beans.UserBean">
25: <jsp:setProperty name="title" property="title" />
26: <jsp:setProperty name="name" property="name" />
27: </jsp:useBean>
28: Name : <%= user1.getName() %><br>
Stacktrace:
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
org.apache.jasper.JasperException
     org.apache.jasper.runtime.JspRuntimeLibrary.internalIntrospecthelper(JspRuntimeLibrary.java:359)
     org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(JspRuntimeLibrary.java:306)
     org.apache.jsp.test_jsp._jspService(test_jsp.java:68)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NullPointerException
     org.apache.jasper.runtime.JspRuntimeLibrary.internalIntrospecthelper(JspRuntimeLibrary.java:320)
     org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(JspRuntimeLibrary.java:306)
     org.apache.jsp.test_jsp._jspService(test_jsp.java:68)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
and my request URL is http://localhost:8080/TestApp/test.jsp?title=Super&name=Great
what could be the problem?

how stupid i'm..
instead of using the bean name in setProperty I have used the property name...
!!!

Applet throws null pointer...

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