Silent config wizard null pointer exception
I have a very simple silent config wizard script that I get an unexpected
null pointer exception. Here is the exception. I will more happy to
provide the scripts, if they help. Any help in this regard is greatly
appreciated.
java.lang.NullPointerException
at
com.bea.plateng.domain.assignment.JDBCPoolJMSJDBCStoreAssignment.crea
teSourceTree(JDBCPoolJMSJDBCStoreAssignment.java:61)
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:335)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.getJDBCConnectionPool(JMSServerServerAssignmentListener.java:107)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.doAssign(JMSServerServerAssignmentListener.java:50)
at
com.bea.plateng.domain.event.assignment.AssignmentTreeListener.vetoab
leChange(AssignmentTreeListener.java:77)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:188)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:155)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:138)
at
com.bea.plateng.common.comdev.TreeDataModel.setAttribute(TreeDataMode
l.java:191)
at
com.bea.plateng.domain.assignment.AssignmentTree$SetInitialSelectionV
isitor.visitTree(AssignmentTree.java:1020)
at
com.bea.plateng.common.comdev.TreeVisitor.visit(TreeVisitor.java:24)
at com.bea.plateng.common.comdev.PreOrder.preVisit(PreOrder.java:34)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:42)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:47)
at
com.bea.plateng.common.comdev.GeneralTree.accept(GeneralTree.java:220
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:359)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.AutoDeployer.deployJMSServersToServer(AutoDepl
oyer.java:2104)
at
com.bea.plateng.domain.AutoDeployer.deployExtensionsToSingleServer(Au
toDeployer.java:2148)
at
com.bea.plateng.domain.AutoDeployer.deploymentExtensionAdded(AutoDepl
oyer.java:355)
at
com.bea.plateng.domain.TemplateExtensionHelper.processAddedExtension(
TemplateExtensionHelper.java:105)
at
com.bea.plateng.domain.DomainTemplate.addApplicationTemplate(DomainTe
mplate.java:797)
at
com.bea.plateng.domain.script.ScriptExecutor.addTemplate(ScriptExecut
or.java:435)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.processAdd(Sc
riptParser.java:881)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.execute(Scrip
tParser.java:463)
at
com.bea.plateng.domain.script.ScriptParser.parseAndRun(ScriptParser.j
ava:171)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
134)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
98)
at
com.bea.plateng.wizard.domain.silent.tasks.RunScriptTask.execute(RunS
criptTask.java:214)
at
com.bea.plateng.wizard.silent.tasks.AbstractSilentTask.run(AbstractSi
lentTask.java:32)
at java.lang.Thread.run(Thread.java:536)
java.lang.NullPointerException
at
com.bea.plateng.domain.assignment.JDBCPoolJMSJDBCStoreAssignment.crea
teSourceTree(JDBCPoolJMSJDBCStoreAssignment.java:61)
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:335)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.getJDBCConnectionPool(JMSServerServerAssignmentListener.java:107)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.doAssign(JMSServerServerAssignmentListener.java:50)
at
com.bea.plateng.domain.event.assignment.AssignmentTreeListener.vetoab
leChange(AssignmentTreeListener.java:77)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:188)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:155)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:138)
at
com.bea.plateng.common.comdev.TreeDataModel.setAttribute(TreeDataMode
l.java:191)
at
com.bea.plateng.domain.assignment.AssignmentTree$SetInitialSelectionV
isitor.visitTree(AssignmentTree.java:1020)
at
com.bea.plateng.common.comdev.TreeVisitor.visit(TreeVisitor.java:24)
at com.bea.plateng.common.comdev.PreOrder.preVisit(PreOrder.java:34)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:42)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:47)
at
com.bea.plateng.common.comdev.GeneralTree.accept(GeneralTree.java:220
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:359)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.DomainChecker.syncAssignments(DomainChecker.ja
va:223)
at
com.bea.plateng.domain.TemplateExtensionHelper.processAddedExtension(
TemplateExtensionHelper.java:112)
at
com.bea.plateng.domain.DomainTemplate.addApplicationTemplate(DomainTe
mplate.java:797)
at
com.bea.plateng.domain.script.ScriptExecutor.addTemplate(ScriptExecut
or.java:435)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.processAdd(Sc
riptParser.java:881)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.execute(Scrip
tParser.java:463)
at
com.bea.plateng.domain.script.ScriptParser.parseAndRun(ScriptParser.j
ava:171)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
134)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
98)
at
com.bea.plateng.wizard.domain.silent.tasks.RunScriptTask.execute(RunS
criptTask.java:214)
at
com.bea.plateng.wizard.silent.tasks.AbstractSilentTask.run(AbstractSi
lentTask.java:32)
at java.lang.Thread.run(Thread.java:536)
I'd suggest you post in the platform newsgroup and/or contact
[email protected]
-- Rob
Carl wrote:
I have a very simple silent config wizard script that I get an unexpected
null pointer exception. Here is the exception. I will more happy to
provide the scripts, if they help. Any help in this regard is greatly
appreciated.
java.lang.NullPointerException
at
com.bea.plateng.domain.assignment.JDBCPoolJMSJDBCStoreAssignment.crea
teSourceTree(JDBCPoolJMSJDBCStoreAssignment.java:61)
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:335)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.getJDBCConnectionPool(JMSServerServerAssignmentListener.java:107)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.doAssign(JMSServerServerAssignmentListener.java:50)
at
com.bea.plateng.domain.event.assignment.AssignmentTreeListener.vetoab
leChange(AssignmentTreeListener.java:77)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:188)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:155)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:138)
at
com.bea.plateng.common.comdev.TreeDataModel.setAttribute(TreeDataMode
l.java:191)
at
com.bea.plateng.domain.assignment.AssignmentTree$SetInitialSelectionV
isitor.visitTree(AssignmentTree.java:1020)
at
com.bea.plateng.common.comdev.TreeVisitor.visit(TreeVisitor.java:24)
at com.bea.plateng.common.comdev.PreOrder.preVisit(PreOrder.java:34)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:42)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:47)
at
com.bea.plateng.common.comdev.GeneralTree.accept(GeneralTree.java:220
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:359)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.AutoDeployer.deployJMSServersToServer(AutoDepl
oyer.java:2104)
at
com.bea.plateng.domain.AutoDeployer.deployExtensionsToSingleServer(Au
toDeployer.java:2148)
at
com.bea.plateng.domain.AutoDeployer.deploymentExtensionAdded(AutoDepl
oyer.java:355)
at
com.bea.plateng.domain.TemplateExtensionHelper.processAddedExtension(
TemplateExtensionHelper.java:105)
at
com.bea.plateng.domain.DomainTemplate.addApplicationTemplate(DomainTe
mplate.java:797)
at
com.bea.plateng.domain.script.ScriptExecutor.addTemplate(ScriptExecut
or.java:435)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.processAdd(Sc
riptParser.java:881)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.execute(Scrip
tParser.java:463)
at
com.bea.plateng.domain.script.ScriptParser.parseAndRun(ScriptParser.j
ava:171)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
134)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
98)
at
com.bea.plateng.wizard.domain.silent.tasks.RunScriptTask.execute(RunS
criptTask.java:214)
at
com.bea.plateng.wizard.silent.tasks.AbstractSilentTask.run(AbstractSi
lentTask.java:32)
at java.lang.Thread.run(Thread.java:536)
java.lang.NullPointerException
at
com.bea.plateng.domain.assignment.JDBCPoolJMSJDBCStoreAssignment.crea
teSourceTree(JDBCPoolJMSJDBCStoreAssignment.java:61)
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:335)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.getJDBCConnectionPool(JMSServerServerAssignmentListener.java:107)
at
com.bea.plateng.domain.event.assignment.JMSServerServerAssignmentList
ener.doAssign(JMSServerServerAssignmentListener.java:50)
at
com.bea.plateng.domain.event.assignment.AssignmentTreeListener.vetoab
leChange(AssignmentTreeListener.java:77)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:188)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:155)
at
com.bea.plateng.common.comdev.MVetoableChangeSupport.fireVetoableChan
ge(MVetoableChangeSupport.java:138)
at
com.bea.plateng.common.comdev.TreeDataModel.setAttribute(TreeDataMode
l.java:191)
at
com.bea.plateng.domain.assignment.AssignmentTree$SetInitialSelectionV
isitor.visitTree(AssignmentTree.java:1020)
at
com.bea.plateng.common.comdev.TreeVisitor.visit(TreeVisitor.java:24)
at com.bea.plateng.common.comdev.PreOrder.preVisit(PreOrder.java:34)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:42)
at
com.bea.plateng.common.comdev.TreeHelper.depthFirstTraversal(TreeHelp
er.java:47)
at
com.bea.plateng.common.comdev.GeneralTree.accept(GeneralTree.java:220
at
com.bea.plateng.domain.assignment.AssignmentTree.buildModel(Assignmen
tTree.java:359)
at
com.bea.plateng.domain.assignment.AssignmentTreeDefinition.createAssi
gnment(AssignmentTreeDefinition.java:302)
at
com.bea.plateng.domain.DomainTemplate.getAssignment(DomainTemplate.ja
va:923)
at
com.bea.plateng.domain.DomainChecker.syncAssignments(DomainChecker.ja
va:223)
at
com.bea.plateng.domain.TemplateExtensionHelper.processAddedExtension(
TemplateExtensionHelper.java:112)
at
com.bea.plateng.domain.DomainTemplate.addApplicationTemplate(DomainTe
mplate.java:797)
at
com.bea.plateng.domain.script.ScriptExecutor.addTemplate(ScriptExecut
or.java:435)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.processAdd(Sc
riptParser.java:881)
at
com.bea.plateng.domain.script.ScriptParser$StateMachine.execute(Scrip
tParser.java:463)
at
com.bea.plateng.domain.script.ScriptParser.parseAndRun(ScriptParser.j
ava:171)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
134)
at
com.bea.plateng.domain.script.ScriptParser.execute(ScriptParser.java:
98)
at
com.bea.plateng.wizard.domain.silent.tasks.RunScriptTask.execute(RunS
criptTask.java:214)
at
com.bea.plateng.wizard.silent.tasks.AbstractSilentTask.run(AbstractSi
lentTask.java:32)
at java.lang.Thread.run(Thread.java:536)
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hi Experts,
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===============Excerpt form the log file==========
[2012-01-26T11:28:14.447-05:00] [oim_server1] [NOTIFICATION] [] [oracle.iam.platform.authz.impl] [tid: [ACTIVE].ExecuteThread: '3' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: xelsysadm] [ecid: 0000JKQq8vZ8dpC5nFk3yZ1Evvpt000LzY,0] [APP: oim#11.1.1.3.0] [dcid: c62f3a4b80d21e6f:ef93519:134587d39c4:-7ffd-0000000000022a3e] [[
---Stack Trace Begins[[This is not an exception. For debugging purposes]]---
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[2012-01-26T11:28:14.447-05:00] [oim_server1] [NOTIFICATION] [IAM-1010010] [oracle.iam.platform.authz.impl] [tid: [ACTIVE].ExecuteThread: '3' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: xelsysadm] [ecid: 0000JKQq8vZ8dpC5nFk3yZ1Evvpt000LzY,0] [APP: oim#11.1.1.3.0] [dcid: c62f3a4b80d21e6f:ef93519:134587d39c4:-7ffd-0000000000022a3e] [arg: 1] [arg: null] [arg: USER_MANAGEMENT_CONFIG] [arg: CREATE_ATTRIBUTE] ********** Entering the Authorization Segment with parameters:: LoggedInUserId = 1, target resourceID = null, Feature = USER_MANAGEMENT_CONFIG, Action = CREATE_ATTRIBUTE **********
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=============Excerpt ends==============
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at oracle.ide.util.SwingWorker$1.run(SwingWorker.java:119)
at java.lang.Thread.run(Thread.java:595)
I couldn't create POJO files and after clicking OK button in popup window; the progress indicator in another window which indicates the creation of POJO files moves continuously.... So please tell me, in where do I make mistake?
best regards...
--barisk -
Null Pointer Exception in SessionData removeAttribute
Hi,
I am getting a null pointer exception while calling removeAttribute on the HttpSession. This happens pretty consistently (it does not give a null pointer some times).
All we are doing is removing a Struts Action Form from the session as it is a large one after going thru a wizard app. It has been frustrating as we have been facing this issue since 10 days and we have no clue what to do. The value objects with in the form are all serializable.
The stack trace is pasted below.
Any help will be greatly appreciated.
java.lang.NullPointerException
at weblogic.servlet.internal.session.SessionData.removeAttribute(SessionData.java:636)
at weblogic.servlet.internal.session.SessionData.removeAttribute(SessionData.java:593)
at gov.v3.fwk.session.V3HttpSession.removeAttribute(V3HttpSession.java:354)
at gov.v3.fwk.controller.struts.action.V3CommonDispatchAction.removeFormsandResultFromSession(V3CommonDispatchAction.java:852)
at gov.v3.fwk.controller.struts.action.V3CommonDispatchAction.executeBaseAction(V3CommonDispatchAction.java:221)
at gov.v3.fwk.controller.struts.action.V3BaseDispatchAction.execute(V3BaseDispatchAction.java:66)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at gov.v3.fwk.controller.struts.requestprocessor.V3TilesRequestProcessor.processActionPerform(V3TilesRequestProcessor.java:177)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:301)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
at gov.v3.fwk.controller.struts.requestprocessor.V3TilesRequestProcessor.doForward(V3TilesRequestProcessor.java:278)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)Did you check the debug view in BPEL console for your process?
-
SAP Portal Display Documents is hanging with Null Pointer Exception
Hi I am having problems with an iview from the products section of SAP standard iviews
In my portal page I have the following three iviews, find documents, display master data and display documents both the find docs and display master data work great, but the display documents seems to hang and a java Null Pointer Exception shows in the data frame of IE. It hangs up the whole page and I have to keep hitting back button to close the window and open. I have the following in config for web front end
DOC_OBJ is mapped to DOKAR, DOKNR, DOKVR and DOKTL with default set.
DOC_REQ is set to DOKAR default checked
EQUI_REQ is set to EQUI-EQUNR default checked
This is under SIMG_SPORT -> products -> select data fields for web front end
Am I missing something?
Cheers,
DevlinThe following code is your problem:
//-------construct
public void MySlide()
contents = new Tile[ROWS][COLS];
reset();
}Constructors don't return anything including void. Therefore you really aren't calling the above method as you assume in your main method as it is not a constructor. Remove the void keyword and your initializing code will execute properly. -
Jbo null pointer exception whilst creating an AM
Hello,
I am trying to create some EO's,VO's and associated AM. At the end of the creation, I tend to get the following error
Load Error
Exception: oracle.jbo.dt.objects.JboException(java.lang.NullPointerException).
The creation of EO's runs smooth, but if I decide to create the associated VO's and the AM, the application hangs, and I have to kill it before I can move forward.
Please guide meI am sorry I was ambiguous in my previous post.
I am trying to create a EO/VO/AM triplet for a host of tables using JDev 11g, and the tables under the 'mct' database.
I followed the following steps to create my triplet.
1. Using the EO wizard, I selected a host of tables, for instance, MCT_CONFIG_CONTACT_CENTER_VL from the MCT db
2. Following the usual steps, I tend to get the null pointer exception, with a 'load error' for one of the classes contained in a zip file, which I do not think I'm using, in the creation of the EO.
In the light of the above scenario, can you please guide me? -
REG : Null Pointer Exception for RFC values
Hi All,
I am facing peculiar erro in code.I need to check the null entries in SAP server then it should be replaced by space and if not null then should be replaced by the value in backend.But it is throwing null pointer exception
I am using equalsignore case(null) and trim for space.
I am not getting why its is throwing null pointer exception.Kindly advise
Regards,
AnupamaHi
Use
String f = null ;
if(f!==null)
Wdcomponent.getMessageManager.ReportException ("this will cause null pointer exception "+ f.length());
Better to give it any Constant like
priveate static final String NULL_CHECK = "DEL_VAL12";
rather than space ,at the time of chceking see if it has DEL_VAL12 if true then put the actual data else let it be there.
Best Regards
Satish Kumar -
Why am I receiving Null pointer Exception Error.
why am I receiving Null pointer Exception Error.
Hi I am developing a code for login screen. There is no syntex error as such ut I am receving the aove mentioned error. Can some one please help me ??
------------ Main.java------------------
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
public class Main implements ActionListener
Frame mainf;
MenuBar mb;
MenuItem List,admitform,inquiry,exit,helpn;
Menu newm,update,help;
Inquiry iq;
Admit ad;
// HosHelp hp;
Howuse hu;
Register reg;
Main()
mainf=new Frame(" Engg College V/S Mumbai University ");
mb=new MenuBar();
newm=new Menu(" New ");
update=new Menu(" Update ");
help=new Menu(" Help ");
List=new MenuItem("List");
admitform=new MenuItem("Admit");
inquiry=new MenuItem("Inquiry");
exit=new MenuItem("Exit");
helpn=new MenuItem("How to Use?");
newm.add(List);
newm.add(admitform);
newm.add(inquiry);
newm.add(exit);
help.add(helpn);
mb.add(newm);
mb.add(update);
mb.add(help);
mainf.setMenuBar(mb);
exit.addActionListener(this);
List.addActionListener(this);
inquiry.addActionListener(this);
admitform.addActionListener(this);
helpn.addActionListener(this);
mainf.setSize(400,300);
mainf.setVisible(true);
public void actionPerformed(ActionEvent ae)
if (ae.getSource()==List)
reg=new Register();
if(ae.getSource()==inquiry)
iq=new Inquiry();
if(ae.getSource()==admitform)
ad=new Admit();
if(ae.getSource()==helpn)
hu=new Howuse();
if(ae.getSource()==exit)
mainf.setVisible(false);
public static void main(String args[])
new Main();
-------------Register.java---------------------------
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
public class Register implements ActionListener//,ItemListener
Label id,name,login,pass,repass;
Button ok,newu,cancel,check;
Button vok,iok,lok,mok,sok; //buttons for dialog boxes
TextField idf,namef,loginf,passf,repassf;
Dialog valid,invlog,less,mismat,acucreat;
Frame regis;
Checkbox admin,limit;
CheckboxGroup type;
DBconnect db;
Register()
db=new DBconnect();
regis=new Frame("Registeration Form");
type=new CheckboxGroup();
admin=new Checkbox("Administrator",type,true);
limit=new Checkbox("Limited",type,false);
id=new Label("ID :");
name=new Label("Name :");
login=new Label("Login :");
pass=new Label("Password :");
repass=new Label("Retype :");
idf =new TextField(20); idf.setEnabled(false);
namef=new TextField(30); namef.setEnabled(false);
loginf=new TextField(30); loginf.setEnabled(false);
passf=new TextField(30); passf.setEnabled(false);
repassf=new TextField(30); repassf.setEnabled(false);
ok=new Button("OK"); ok.setEnabled(false);
newu=new Button("NEW");
cancel=new Button("Cancel");
check=new Button("Check Login"); check.setEnabled(false);
vok=new Button("OK");
iok=new Button("OK");
lok=new Button("OK");
mok=new Button("OK");
sok=new Button("OK");
valid=new Dialog(regis,"Login name is valid !");
invlog=new Dialog(regis,"Login name already exist!");
less=new Dialog(regis,"Password is less than six characters !");
mismat=new Dialog(regis,"password & retyped are not matching !");
acucreat=new Dialog(regis,"You have registered successfully !");
regis.setLayout(null);
// regis.setBackground(Color.orange);
valid.setLayout(new FlowLayout());
invlog.setLayout(new FlowLayout());
less.setLayout(new FlowLayout());
mismat.setLayout(new FlowLayout());
acucreat.setLayout(new FlowLayout());
id.setBounds(35,50,80,25); //(left,top,width,hight)
idf.setBounds(125,50,40,25);
name.setBounds(35,85,70,25);
namef.setBounds(125,85,150,25);
login.setBounds(35,120,80,25);
loginf.setBounds(125,120,80,25);
check.setBounds(215,120,85,25);
pass.setBounds(35,155,80,25);
passf.setBounds(125,155,80,25);
repass.setBounds(35,190,80,25);
repassf.setBounds(125,190,80,25);
admin.setBounds(35,225,100,25);
limit.setBounds(145,225,100,25);
ok.setBounds(45,265,70,25);
newu.setBounds(135,265,70,25);
cancel.setBounds(225,265,70,25);
passf.setEchoChar('*');
repassf.setEchoChar('*');
regis.add(id);
regis.add(idf);
regis.add(name);
regis.add(namef);
regis.add(login);
regis.add(loginf);
regis.add(check);
regis.add(pass);
regis.add(passf);
regis.add(repass);
regis.add(repassf);
regis.add(ok);
regis.add(newu);
regis.add(cancel);
regis.add(admin);
regis.add(limit);
valid.add(vok);
invlog.add(iok);
less.add(lok);
mismat.add(mok);
acucreat.add(sok);
ok.addActionListener(this);
newu.addActionListener(this);
check.addActionListener(this);
cancel.addActionListener(this);
// limit.addItemListener(this);
//admin.addItemListener(this);
vok.addActionListener(this);
iok.addActionListener(this);
lok.addActionListener(this);
mok.addActionListener(this);
sok.addActionListener(this);
regis.setLocation(250,150);
regis.setSize(310,300);
regis.setVisible(true);
public void actionPerformed(ActionEvent ae)
if(ae.getSource()==check)
try{
String s2=loginf.getText();
ResultSet rs=db.s.executeQuery("select* from List");
while(rs.next())
if(s2.equals(rs.getString(2).trim()))
// invlog.setBackground(Color.orange);
invlog.setLocation(250,150);
invlog.setSize(300,100);
cancel.setEnabled(false);
ok.setEnabled(false);
check.setEnabled(false);
invlog.setVisible(true);
break;
else
// valid.setBackground(Color.orange);
valid.setLocation(250,150);
valid.setSize(300,100);
cancel.setEnabled(false);
ok.setEnabled(false);
check.setEnabled(false);
valid.setVisible(true);
}catch(Exception e)
e.printStackTrace();
if(ae.getSource()==newu)
try{
ResultSet rs=db.s.executeQuery("select max(ID) from List");
while(rs.next())
String s1=rs.getString(1).trim();
int i=Integer.parseInt(s1);
i++;
String s2=""+i;
idf.setText(s2);
newu.setEnabled(false);
namef.setText(""); namef.setEnabled(true);
loginf.setText(""); loginf.setEnabled(true);
passf.setText(""); passf.setEnabled(true);
repassf.setText(""); repassf.setEnabled(true);
ok.setEnabled(true);
check.setEnabled(true);
}catch(Exception e)
e.printStackTrace();
if(ae.getSource()==ok)
try
String s1=idf.getText();
String s2=loginf.getText();
String s3=passf.getText();
String s4=repassf.getText();
int x=Integer.parseInt(s1);
int t;
if(type.getSelectedCheckbox()==admin)
t=1;
else
t=0;
ResultSet rs=db.s1.executeQuery("select* from List");
while(rs.next())
if(s2.equals(rs.getString(2).trim()))
invlog.setBackground(Color.orange);
invlog.setLocation(250,150);
invlog.setSize(300,100);
cancel.setEnabled(false);
ok.setEnabled(false);
check.setEnabled(false);
invlog.setVisible(true);
break;
else
if (s3.length()<6)
less.setBackground(Color.orange);
less.setLocation(250,150);
less.setSize(300,100);
ok.setEnabled(false);
cancel.setEnabled(false);
check.setEnabled(false);
less.setVisible(true);
else if(!(s3.equals(s4)))
mismat.setBackground(Color.orange);
mismat.setLocation(250,150);
mismat.setSize(300,100);
ok.setEnabled(false);
cancel.setEnabled(false);
check.setEnabled(false);
mismat.setVisible(true);
else
db.s1.execute("insert into User values("+x+",'"+s2+"','"+s3+"',"+t+")");
acucreat.setBackground(Color.orange);
acucreat.setLocation(250,150);
acucreat.setSize(300,100);
regis.setVisible(false);
acucreat.setVisible(true);
}//else
}//while
} //try
catch(Exception e1)
// e1.printStackTrace();
if (ae.getSource()==cancel)
regis.setVisible(false);
if (ae.getSource()==vok)
ok.setEnabled(true);
cancel.setEnabled(true);
check.setEnabled(true);
valid.setVisible(false);
if (ae.getSource()==iok)
ok.setEnabled(true);
cancel.setEnabled(true);
check.setEnabled(true);
invlog.setVisible(false);
if (ae.getSource()==lok)
less.setVisible(false);
cancel.setEnabled(true);
ok.setEnabled(true);
check.setEnabled(true);
if (ae.getSource()==mok)
mismat.setVisible(false);
cancel.setEnabled(true);
ok.setEnabled(true);
check.setEnabled(true);
if (ae.getSource()==sok)
acucreat.setVisible(false);
ok.setEnabled(false);
newu.setEnabled(true);
regis.setVisible(true);
public static void main(String args[])
new Register();
-----------DBConnect.java------------------------------------
import java.sql.*;
public class DBconnect
Statement s,s1;
Connection c;
public DBconnect()
try
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
c=DriverManager.getConnection("jdbc:odbc:Sonal");
s=c.createStatement();
s1=c.createStatement();
catch(Exception e)
e.printStackTrace();
----------Login.java----------------
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
public class Login implements ActionListener
Frame log;
Label login,pass;
TextField loginf,passf;
Button ok,cancel;
Dialog invalid;
Button iok;
Register reg;
DBconnect db;
Main m;
Login()
db=new DBconnect();
log=new Frame();
log.setLocation(250,210);
login=new Label("Login :");
pass=new Label("Password :");
loginf=new TextField(20);
passf=new TextField(20);
passf.setEchoChar('*');
ok=new Button("OK");
// newu=new Button("New User");
cancel=new Button("CANCEL");
iok=new Button(" OK ");
invalid=new Dialog(log,"Invalid User!");
//log.setBackground(Color.cyan);
//log.setForeground(Color.black);
log.setLayout(null);
// iok.setBackground(Color.gray);
invalid.setLayout(new FlowLayout());
login.setBounds(35,50,70,25); //(left,top,width,hight)
loginf.setBounds(105,50,100,25);
pass.setBounds(35,85,70,25);
passf.setBounds(105,85,70,25);
ok.setBounds(55,130,70,25);
// newu.setBounds(85,120,80,25);
cancel.setBounds(145,130,70,25);
log.add(login);
log.add(loginf);
log.add(pass);
log.add(passf);
log.add(ok);
// log.add(newu);
log.add(cancel);
invalid.add(iok);//,BorderLayout.CENTER);
ok.addActionListener(this);
// newu.addActionListener(this);
cancel.addActionListener(this);
iok.addActionListener(this);
log.setSize(300,170);
log.setVisible(true);
public void actionPerformed(ActionEvent a)
if(a.getSource()==ok)
try{
String l=loginf.getText();
String p=passf.getText();
ResultSet rs=db.s.executeQuery("select * from List");
while(rs.next())
if(l.equals(rs.getString(2).trim())&& p.equals(rs.getString(3).trim()))
String tp=rs.getString(4).trim();
int tp1=Integer.parseInt(tp);
log.setVisible(false);
if(tp1==1)
m=new Main();
// m.List.setEnabled(true);
else
m=new Main();
m.List.setEnabled(false);
break;
else
invalid.setBackground(Color.orange);
invalid.setSize(300,100);
invalid.setLocation(250,210);
cancel.setEnabled(false);
ok.setEnabled(false);
invalid.setVisible(true);
}catch(Exception e1)
e1.printStackTrace();
if (a.getSource()==cancel)
log.setVisible(false);
if (a.getSource()==iok)
invalid.setVisible(false);
loginf.setText("");
passf.setText("");
cancel.setEnabled(true);
ok.setEnabled(true);
public static void main(String[] args)
new Login();
-------------inquiry.java---------------------------------
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.Date;
import java.text.*;
import java.sql.*;
public class Inquiry implements ActionListener
Frame inqry;
Label name,addr;
TextField namef,addrf;
Button ok,cancel,dok;
Dialog invalid;
Frame result; //Result of the inquiry....
Label lrname,lraddr,lward,lrdate,lcdate;
TextField rname,raddr,ward,rdate,cdate;
Date d;
DateFormat df;
Button rok,rcancel;
Dialog success;
Button rdok;
DBconnect db;
Inquiry()
db=new DBconnect();
inqry=new Frame("Inquiry Form");
inqry.setLayout(null);
inqry.setBackground(Color.cyan);
name=new Label(" NAME ");
addr=new Label("ADDRESS");
namef=new TextField(20);
addrf=new TextField(20);
ok=new Button("OK");
cancel=new Button("CANCEL");
dok=new Button("OK");
invalid=new Dialog(inqry,"Invalid Name or Address !");
invalid.setSize(300,100);
invalid.setLocation(300,180);
invalid.setBackground(Color.orange);
invalid.setLayout(new FlowLayout());
result=new Frame(" INQUIRY RESULT "); //Result Window......
result.setLayout(null);
result.setBackground(Color.cyan);
lcdate=new Label(" DATE ");
lrname=new Label(" NAME ");
lraddr=new Label(" ADDRESS ");
lward=new Label(" WARD ");
lrdate=new Label(" ADMIT-DATE ");
cdate=new TextField(10);
rname=new TextField(20);
rname.setEnabled(false);
raddr=new TextField(20);
raddr.setEnabled(false);
ward=new TextField(20);
ward.setEnabled(false);
rdate=new TextField(10);
rdate.setEnabled(false);
cdate=new TextField(20);
d=new Date();
df=DateFormat.getDateInstance(DateFormat.MEDIUM,Locale.KOREA);
cdate.setText(df.format(d));
cdate.setEnabled(false);
rok=new Button(" OK ");
rcancel=new Button("CANCEL");
name.setBounds(40,50,50,25);
namef.setBounds(120,50,130,25);
addr.setBounds(40,100,60,25);
addrf.setBounds(120,100,80,25);
ok.setBounds(60,145,70,25);
cancel.setBounds(140,145,70,25);
lcdate.setBounds(200,50,60,25); //Result Window......
cdate.setBounds(270,50,80,25);
lrname.setBounds(35,85,70,25);
rname.setBounds(140,85,180,25);
lraddr.setBounds(35,120,80,25);
raddr.setBounds(140,120,100,25);
lward.setBounds(35,155,80,25);
ward.setBounds(140,155,100,25);
lrdate.setBounds(30,190,80,25);
rdate.setBounds(140,190,80,25);
rok.setBounds(70,240,70,25);
rcancel.setBounds(170,240,70,25);
inqry.add(name);
inqry.add(namef);
inqry.add(addr);
inqry.add(addrf);
inqry.add(ok);
inqry.add(cancel);
invalid.add(dok);
result.add(lcdate); //Result Window......
result.add(cdate);
result.add(lrname);
result.add(rname);
result.add(lraddr);
result.add(raddr);
result.add(lward);
result.add(ward);
result.add(lrdate);
result.add(rdate);
result.add(rok);
result.add(rcancel);
ok.addActionListener(this);
cancel.addActionListener(this);
dok.addActionListener(this);
rok.addActionListener(this); //Result Window......
rcancel.addActionListener(this);
inqry.setSize(280,180);
inqry.setLocation(300,180);
inqry.setVisible(true);
result.setSize(400,280); //Result Window......
result.setLocation(200,150);
result.setVisible(false);
public void actionPerformed(ActionEvent ae)
if(ae.getSource()==ok)
try
String nm=namef.getText();
String ad=addrf.getText();
inqry.setVisible(false);
ResultSet rs=db.s.executeQuery("select * from Billinformation");
while(rs.next())
String nm1=rs.getString(2).trim();
String ad1=rs.getString(3).trim();
int k=0;
if((nm1.equals(nm))&&(ad1.equals(ad)))
String adm=rs.getString(5).trim();
String wr=rs.getString(6).trim();
String bd=rs.getString(8).trim();
String wrb=wr+"-"+bd;
result.setVisible(true);
rname.setText(nm1);
raddr.setText(ad1);
ward.setText(wrb);
rdate.setText(adm);
k=1;
break;
}//if
else if(k==1)
invalid.setVisible(true);
}//while
}//try
catch(Exception e)
e.printStackTrace();
} //getsource ==ok
if(ae.getSource()==cancel)
inqry.setVisible(false);
if(ae.getSource()==rok) //Result Window......
namef.setText("");
addrf.setText("");
result.setVisible(false);
inqry.setVisible(true);
if(ae.getSource()==rcancel)
result.setVisible(false);
if(ae.getSource()==dok)
namef.setText("");
addrf.setText("");
invalid.setVisible(false);
inqry.setVisible(true);
public static void main(String args[])
new Inquiry();
PLease Help me !!
I need this urgently.can you explain what your program tries to do... and
at where it went wrong..Sir,
We are trying to make an project where we can make a person register in our data base & after which he/she can search for other user.
The logged in user can modify his/her own data but can view other ppl's data.
We are in a phase of registering the user & that's where we are stuck. The problem is that after the login screen when we hit register (OK- button) the data are not getting entered in the data base.
Can u please help me??
I am using "jdk1.3' - studnet's edition.
I am waiting for your reply.
Thanks in advance & yr interest. -
Null pointer exception and servlet
I cant figure out why i am getting a null pointer exception. this works if i keep my form output in the same class as my driving servlet. All i did was break off the html display to a new form and i get a null pointer exception.
this is just an excerpt. no reason to post the whole form.
Here are my two classes...
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.text.*;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.*;
import org.w3c.dom.Document;
import org.w3c.dom.DOMException;
import org.w3c.dom.Element;
public class myServlet extends HttpServlet
implements SingleThreadModel {
displayScreen myAddressBook;
HttpServletRequest request;
HttpServletResponse response;
String displayForm = "DISPLAYFORM";
String addForm = "ADDFORM";
String editForm = "EDITFORM";
// get function
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
request = this.request;
response = this.response;
displayScreen myAddressBook = new displayScreen(this.request,this.response);
myAddressBook.sendAddressBook(request,response,false,displayForm);
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
errorMsg = "";
errCount=0;
//stores address book in hashmap. Not currently using Address Book object
request = this.request;
response = this.response;
if ((request.getParameterValues("submit")[0].equals("Next")))
myAddressBook.sendAddressBook(request,response,false,displayForm);
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.text.*;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.*;
public class displayScreen {
int errCount;
String errorMsg;
String displayForm = "DISPLAYFORM";
String addForm = "ADDFORM";
String editForm = "EDITFORM";
HttpServletRequest request;
HttpServletResponse response;
displayScreen (HttpServletRequest request, HttpServletResponse response) {
request = this.request;
response = this.response;
public void sendAddressBook (HttpServletRequest request, HttpServletResponse response,boolean FileError,String formType)
throws ServletException, IOException {
request = this.request;
response = this.response;
response.setContentType("text/html"); /*****/ I GET A NULL POINTER EXCEPTION RIGHT HERE!!!!!!
}anyway to write the system.err to an html screen with
a servlet?Why would you ask that? Surely you should have asked "Any way to write a stack trace to an HTML screen from a servlet?"
And in fact there is. I am sure you have not yet looked up the Exception class and the versions of its printStackTrace() method. But when you do, you will see that there are printStackTrace(PrintStream) and printStackTrace(PrintWriter). And you know how to write HTML (or text in general) to the servlet response so that it shows up in the client's browser, right? I will let you figure out how to put those things together. -
Null Pointer Exception and Illegal Arguement when ran with Wireless Toolkit
The following code throws a null pointer exception after it tried to initialize the textBox. I am not sure if there is something I am not importing, or if it's just because I'm sick and my head is cloudy. :-}.
I am using Wireless Toolkit 2.2 and Java 5.0
Anyhelp would be appreicated. Thank You.
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class TacticalTestMain extends MIDlet implements CommandListener {
private Display display;
private Form formMain;
private TextBox tbHelp; //Text Box for help Command
private Command cmExit; //A button to exit midLet
private Command cmBack; //Go "back" to main form
private Command cmHelp; //Ask for help
public TacticalTestMain()
display = Display.getDisplay(this);
formMain = new Form("Tactical Survey Program");
cmExit = new Command("Exit", Command.SCREEN, 1);
cmBack = new Command("Back", Command.BACK, 1);
cmHelp = new Command("Help", Command.HELP, 1);
formMain.addCommand(cmExit);
formMain.addCommand(cmBack);
formMain.addCommand(cmHelp);
formMain.setCommandListener(this);
System.out.println("Before Create Text Box");
//Create the help textBox with a max of 25 charecters
tbHelp = new TextBox("HeLp", "You can press the back button", 25, 0);
tbHelp.addCommand(cmBack);
tbHelp.setCommandListener(this);
System.out.println("AfTER Create Text Box");
}//end constructor
public void startApp()
System.out.println("Inside StartApp()");
display.setCurrent(formMain);
}//end startApp()
public void pauseApp()
}//end pauseApp
public void destroyApp(boolean unconditional)
notifyDestroyed();
}//end destroyApp()
//Check to see if the exit button was selected
public void commandAction(Command c, Displayable d)
System.out.println("Inside commandAction()");
String sLabel = c.getLabel();
if(sLabel.equals("Exit"))
destroyApp(true);
Errors from the KToolbar:
Running with storage root DefaultColorPhone
Before Create Text Box
Unable to create MIDlet TacticalTestMain
java.lang.IllegalArgumentException
at javax.microedition.lcdui.TextField.setChars(+105)
at javax.microedition.lcdui.TextField.setString(+27)
at javax.microedition.lcdui.TextField.<init>(+134)
at javax.microedition.lcdui.TextBox.<init>(+74)
at TacticalTestMain.<init>(+134)
at java.lang.Class.runCustomCode(+0)
at com.sun.midp.midlet.MIDletState.createMIDlet(+19)
at com.sun.midp.midlet.Selector.run(+22)
Execution completed.
743701 bytecodes executed
23 thread switches
741 classes in the system (including system classes)
4071 dynamic objects allocated (120440 bytes)
2 garbage collections (91412 bytes collected)Hi zoya,
Here is the problem:
tbHelp = new TextBox("HeLp", "You can press the back button", 25, 0);
This line declares a maximum textbox size of 25 but in reality he is declaring a textbox of size 29.
Thats why it is throwing the illegal argument.
happy coding :) -
Null Pointer exception returned when object is not null!
I've isolated the problem and cut down the code to the minimum. Why do I get a null pointer exception when the start method is called, when the object objJTextField is not null at this point???? I'm really stuck here, HELP!
(two small java files, save as BasePage.java and ExtendedPage.java and then run ExtendedPage)
first file
~~~~~~~
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public abstract class BasePage extends JFrame implements ActionListener
private JPanel objJPanel = null;
public BasePage()
setSize(300,200);
Container objContentPane = getContentPane();
objJPanel = new JPanel();
createObjects();
createPage();
// Add panels to content pane
objContentPane.add(objJPanel);
public void addComponentToPage(JComponent objJComponent)
objJPanel.add(objJComponent);
public void addButtonToPage(JButton objJButton)
objJButton.addActionListener(this);
objJPanel.add(objJButton);
public void actionPerformed(ActionEvent objActionEvent)
System.out.println("Action performed");
userDefinedButtonClicked(objActionEvent.getActionCommand());
// overide
public abstract void createObjects();
public abstract void createPage();
public abstract void userDefinedButtonClicked(String sActionCommand);
file 2
~~~~
import javax.swing.*;
public class ExtendedPage extends BasePage
private JTextField objJTextField = null;
private JButton objJButtonBrowse = null;
public ExtendedPage()
super();
public void createObjects()
objJTextField = new JTextField(20);
objJButtonBrowse = new JButton("Start");
objJButtonBrowse.setActionCommand("START");
public void createPage()
addComponentToPage(objJTextField);
addButtonToPage(objJButtonBrowse);
public void userDefinedButtonClicked(String sActionCommand)
if ((sActionCommand != null) && (sActionCommand.equals("START")) )
start();
private void start()
objJTextField.setText("Doesn't work");
public static void main(String[] args)
ExtendedPage objEP = new ExtendedPage();
objEP.show();Hello ppaulf,
Your problem is in your ExtendedPage.java file. You can fix this by changing the line
private JTextField objJTextField = null;to:
private JTextField objJTextField = new JTextField();This creates a proper instance.
Good luck,
Ming
Developer Technical Support
http://www.sun.com/developers/support -
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
URL serviceURL = new URL(null, wsEndpointWSDL);
//create service qname
QName serviceQName = new QName(targetNamespace, "WSService");
//create port qname
QName portQName = new QName(targetNamespace, "WSPortName");
//create service
Service service = Service.create(serviceURL, serviceQName);
//create dispatch on port
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 -
i am facing problem while reading values from properties file ...i am getting null pointer exception earlier i was using jdeveloper10g now i am using 11g
hi TimoHahn,
i am getting following exception in JDeveloper(11g release 2) Studio Edition Version 11.1.2.4.0 but it works perfectly fine in JDeveloper 10.1.2.1.0
Root cause of ServletException.
java.lang.NullPointerException
at java.util.PropertyResourceBundle.handleGetObject(PropertyResourceBundle.java:136)
at java.util.ResourceBundle.getObject(ResourceBundle.java:368)
at java.util.ResourceBundle.getString(ResourceBundle.java:334)
at org.rbi.cefa.master.actionclass.UserAction.execute(UserAction.java:163)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178) -
JRC (upg. to CR4E) - Report w Subreport - Oracle DB - Null Pointer Excepti
Hi
We have a Crystal Designer/Developer Version 11.5.10.1263. We develop reports using this.
Most of the reports have SQL Command mode design with JNDI/JDBC connection. It gets deployed with our Web application. And during runtime, when users access these reports from our web application, we typically use Java Reporting Component with Crystal Report Viewer SDK to open and display the report to the user.
Besides other issues, current problem I am having is:
I have a sub-report in my report. I am connecting to Oracle database. If this sub-report does not return any rows, I was getting a Null Pointer Exception. This seems to be a known bug. This happened to us when we had just the above mentioned components.
We recently upgraded just the JAR libraries to the ones packaged in CR4E (Crystal Reports For Eclipse) - initially to get more exporting capability.This upgrade gets us past the Null Pointer Exception issue.
Now, I am getting an error like "Unexpected database connector error". Please see the exception stack trace below if needed. Since we are a product and this display is specific to one out of about 100 different clients; with all the time we spent on making this report stuff work against this oracle DB client, we had finally ended up creating the display in JSP into our general product just for one of about 100 clients. Client must be the Lucky one...As a developer, I felt really frustrated.
One note:- SQL Server DB works perfect.
Other thing - Do we need to change any API calls after upgrading the JARS from standard JRC/Viewer to CR4E package?
11:46:57,540 INFO [STDOUT] 11:46:57,540 ERROR [JRCCommunicationAdapter] detected an exception: Unexpected database connector error
at com.crystaldecisions.reports.datafoundation.DFQuery.for(SourceFile:632)
at com.crystaldecisions.reports.datalayer.a.do(SourceFile:1621)
at com.crystaldecisions.reports.datalayer.a.a(SourceFile:1404)
at com.crystaldecisions.reports.dataengine.m.b(SourceFile:334)
at com.crystaldecisions.reports.dataengine.j.b(SourceFile:515)
at com.crystaldecisions.reports.dataengine.m.o(SourceFile:408)
at com.crystaldecisions.reports.dataengine.m.a(SourceFile:173)
at com.crystaldecisions.reports.dataengine.ContextNode.a(SourceFile:114)
at com.crystaldecisions.reports.dataengine.ContextNode.a(SourceFile:95)
at com.crystaldecisions.reports.dataengine.j.case(SourceFile:1080)
at com.crystaldecisions.reports.dataengine.h.<init>(SourceFile:108)
at com.crystaldecisions.reports.dataengine.DataContext.a(SourceFile:254)
at com.crystaldecisions.reports.dataengine.DataProcessor2.a(SourceFile:4660)
at com.crystaldecisions.reports.dataengine.DataProcessor2.a(SourceFile:4574)
at com.crystaldecisions.reports.dataengine.DataProcessor2.new(SourceFile:2652)
at com.crystaldecisions.reports.dataengine.DataProcessor2.byte(SourceFile:2610)
at com.crystaldecisions.reports.dataengine.DataProcessor2.try(SourceFile:2282)
at com.crystaldecisions.reports.dataengine.DataProcessor2.int(SourceFile:2442)
at com.crystaldecisions.reports.dataengine.DataProcessor2.I(SourceFile:1013)
at com.crystaldecisions.reports.dataengine.DataProcessor2.if(SourceFile:4816)
at com.crystaldecisions.reports.dataengine.DataProcessor2.a(SourceFile:2020)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ObjectFormatter.a(SourceFile:309)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ObjectFormatter.a(SourceFile:250)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.u.a(SourceFile:922)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.u.e(SourceFile:784)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.u.for(SourceFile:242)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.aa.a(SourceFile:64)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ObjectFormatter.a(SourceFile:243)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ObjectFormatter.a(SourceFile:210)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.v.a(SourceFile:185)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.v.a(SourceFile:230)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ai.for(SourceFile:359)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ai.for(SourceFile:133)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ColumnFormatter.for(SourceFile:120)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.aa.a(SourceFile:64)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ai.a(SourceFile:511)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ai.a(SourceFile:452)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ai.a(SourceFile:369)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ah.a(SourceFile:72)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ReportColumnFormatter.a(SourceFile:86)
at com.crystaldecisions.reports.formatter.formatter.paginator.SinglePageFormatter.a(SourceFile:332)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ai.for(SourceFile:359)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ai.for(SourceFile:133)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.ColumnFormatter.for(SourceFile:120)
at com.crystaldecisions.reports.formatter.formatter.paginator.SinglePageFormatter.for(SourceFile:177)
at com.crystaldecisions.reports.formatter.formatter.objectformatter.aa.a(SourceFile:64)
at com.crystaldecisions.reports.formatter.formatter.paginator.PageFormatter.do(SourceFile:737)
at com.crystaldecisions.reports.formatter.formatter.paginator.PageFormatter.formatPage(SourceFile:236)
at com.businessobjects.reports.sdk.requesthandler.ReportViewingRequestHandler.byte(SourceFile:219)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1909)
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.getPage(SourceFile:767)
at com.crystaldecisions.sdk.occa.report.application.AdvancedReportSource.getPage(SourceFile:324)
at com.crystaldecisions.reports.reportengineinterface.JPEReportSource.getPage(SourceFile:149)
at com.businessobjects.report.web.event.s.a(SourceFile:158)
at com.businessobjects.report.web.event.s.a(SourceFile:127)
at com.businessobjects.report.web.event.bt.a(SourceFile:47)
at com.businessobjects.report.web.event.bw.broadcast(SourceFile:93)
at com.businessobjects.report.web.event.am.a(SourceFile:53)
at com.businessobjects.report.web.a.t.if(SourceFile:2104)
at com.businessobjects.report.web.e.a(SourceFile:300)
at com.businessobjects.report.web.e.a(SourceFile:202)
at com.businessobjects.report.web.e.a(SourceFile:135)
at com.crystaldecisions.report.web.ServerControl.a(SourceFile:607)
at com.crystaldecisions.report.web.ServerControl.processHttpRequest(SourceFile:342)
at org.apache.jsp.ipalHistoryReportViewer_jsp._jspService(org.apache.jsp.ipalHistoryReportViewer_jsp:201)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
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.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
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.Standar
11:46:57,540 INFO [STDOUT] dEngineValve.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.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
11:46:57,634 INFO [STDOUT] CustomReports - finally Calling CrystalReportViewer dispose ...I have exactly the same problem. Had posted it on the forum last week, but haven't received any response yet. I just file a single support case ($195) with SAP. If I hear anything useful back, will keep you posted. Please let me know if you are able to resolve the problem.
In my case, I can get my report to work with a single subreport. When I put multiple subreports, I get the same error as you are currently getting.
Check if your report has any special section formatting (conditional suppression etc). Try to remove those to see if it helps at all.
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Keep the old value in the UI field if entity validation fails
Hi, I have a requirement to retain the original value (old value), if the entity attribute validation fails when the filed value is changed. I have created one validation rule on the entity object and the validation rule is working as expected. But I