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,
Devlin
The 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.
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Help with Null Pointer Exception
Hi, I am working on a simple menu program. It compiles and works correctly except for one item. I am having a problem with Greying out a menu item...... Specifically, When I press the EDIT / OPTIONS / READONLY is supposed to Greyout the Save and SaveAs options. But, when I do that it displays a Null Pointer Exception error message in the command window.
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Now for the code
/ FileName Menutest.java
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} // end class MenuTestalan, I've been trying to figure out a solution.
You can initialize it like this
private Action saveAction= new Action();
private Action saveAsAction=new Action();
THE ABOVE WILL NOT WORK.
because Action is an interface. An interface does not have constructors. However, interface references are used for polymorphic purposes.
Anyway, all you have to do is find some class that implemets Action interface.... I cant seem to find one. Or maybe this is not how its supposed to be done?
Hopefully, someone can shed some light on this issue.
FYI,
http://java.sun.com/products/jfc/swingdoc-api-1.1/javax/swing/Action.html -
Crystal report (crystalReportsViewer) crash with null pointer exception
Hi,
My application are simple : m_crystalReportsViewer.ViewerCore.ReportSource = report; but in throw exception null pointer when I call showDialog.
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Do you have any idea about this?
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Here is stack trace :
Unerwarteter Fehler im System ---> System.NullReferenceException: Object reference not set to an instance of an object.
at SAPBusinessObjects.WPF.Viewer.ReportAlbum.ShowTabHeader(Boolean isShow)
at SAPBusinessObjects.WPF.Viewer.ReportAlbum.ItemsChangedEventHandler(Object sender, ItemsChangedEventArgs e)
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at System.Windows.Controls.ItemContainerGenerator.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
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at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
at System.Collections.Specialized.CollectionChangedEventManager.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
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at System.Collections.Specialized.CollectionChangedEventManager.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
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--- End of inner exception stack trace ---
Edited by: duyhai707 on Jul 13, 2011 7:42 PM
Edited by: duyhai707 on Jul 13, 2011 8:09 PMA lot I don't understand in here... actually, I don't understand anything in your post:
When you call ShowDialog, what exactly are you trying to show? The code is the decompiled showtabheader method of the viewer. So, are you trying to override the viewer control and reportalbum? My guess is that the null reference is for the reportalbum's child object which is not the reportalbum object of the viewer. I don't understand why the code since its all handled internally to the viewer anyhow.
Perhaps searching the forum for code sample will help?
Also, see the [WPF Demo|http://www.sdn.sap.com/irj/scn/elearn?rid=/library/uuid/a09f7025-0629-2d10-d7ae-df006a51d1a8]
Other good WPF resources to consult:
http://www.redmondpie.com/incorporate-crystal-reports-in-a-c-wpf-application/
http://www.sdn.sap.com/irj/scn/elearn?rid=/library/uuid/a09f7025-0629-2d10-d7ae-df006a51d1a8
http://www.codeproject.com/Tips/74499/Crystal-Report-in-WPF.aspx
Re: Crystal Reports for Visual Studio 2010 - WPF Viewer for .Net 4.0
http://codegain.com/articles/crystalreports/howto/incorporate-crystal-reports-in-wpf-using-c-sharp.aspx
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Re: CRVS2010 Beta - WPF Viewer, how to hide the GroupTree control?
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
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08/01/16 10:58:25 Starting DT ...
08/01/16 10:58:25 Instan DT ...
08/01/16 10:58:25 Loading DT ...
08/01/16 10:58:25 Connection being made ...
08/01/16 11:32:16 ==================== DT2 Start ====================
08/01/16 11:32:16 C:\oracle\OraOC4J\j2ee\home\applications\DTTestBed\DTTestBed\t
emp
08/01/16 11:32:16 inside loop
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08/01/16 11:32:16
08/01/16 11:32:16 1
08/01/16 11:32:16 [oracle.apps.xdo.dataengine.TemplateParameter@1f37d13]
08/01/16 11:32:16 2
08/01/16 11:32:16 Template Name: EMPLOYEESDT
08/01/16 11:32:16 4
08/01/16 11:32:16 Completed
08/01/16 11:32:16 ==================== DT2 End ====================
08/01/16 11:32:43 ==================== DT3 Start ====================
08/01/16 11:32:43 http://40e1:8888/
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08/01/16 11:32:43 Template: EMPLOYEESDT
08/01/16 11:32:43 Data Template: oracle.apps.xdo.dataengine.TemplateParser@6e4e8
2
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08/01/16 11:32:43 Org:
08/01/16 11:32:43 Layout: on
08/01/16 11:32:43 Schema: on
08/01/16 11:32:43 <dataTemplate name="EMPLOYEES" defaultPackage="" description="
Employee Data">
<properties>
<property name="include_parameters" value="true"/>
<property name="include_null_Element" value="true"/>
<property name="xml_tag_case" value="upper"/>
<property name="db_fetch_size" value="500"/>
<property name="scalable_mode" value="off"/>
<property name="include_rowsettag" value="false"/>
<property name="debug_mode" value="off"/>
</properties>
<parameters>
<parameter name="pDeptNo" dataType="number" defaultValue=""/>
</parameters>
<lexicals/>
<dataQuery>
<sqlStatement name="Q1" dataSourceRef="">SELECT DEPTNO,DNAME,LOC
from dept
where deptno = nvl(:pDeptNo,deptno)
order by deptno</sqlStatement>
<sqlStatement name="Q2" dataSourceRef="">SELECT EMPNO,ENAME,JOB
,MGR,HIREDATE,SAL,nvl(COMM,0) COMM
from EMP
WHERE DEPTNO = :DEPTNO</sqlStatement>
</dataQuery>
<dataStructure>
<group name="G_DEPT" source="Q1" groupFilter="">
<element name="DEPT_NUM" value="DEPTNO" function=""/>
<element name="DEPT_NAME" value="DNAME" function=""/>
<element name="LOCATION" value="LOC" function=""/>
<group name="G_EMP" source="Q2" groupFilter="">
<element name="EMPNO" value="EMP_NUM" function="
"/>
<element name="EMP_NAME" value="ENAME" function=
""/>
<element name="JOB_TITLE" value="JOB" function="
"/>
<element name="MANAGER" value="MGR" function=""/
>
<element name="HIRE_DATE" value="HIREDATE" funct
ion=""/>
<element name="SALARY" value="SAL" function=""/>
<element name="COMMISSION" value="COMM" function
=""/>
</group>
</group>
</dataStructure>
</dataTemplate>
08/01/16 11:32:43 Starting DT ...
08/01/16 11:32:43 Instan DT ...
08/01/16 11:32:43 Loading DT ...
08/01/16 11:32:43 Connection being made ...
Hope this helps.
Thanks
Mike -
Error:null pointer exception in jsp
I try to write a programme for copying from one file to another file in a text format.but it is displaying the error.why the null pointer exception is coming.also i want to write the contents from combobox and text box to that same file.for that what to do? can u explain.
the code is like that.... the disining part in another page..
<%@ page language="java"%>
<%@ page import="java.io.*"%>
<%@ page import="java.text.*"%>
<html>
<head>
<title>
</title>
</head>
<body>
<%
String cname=request.getParameter("cname");
String category=request.getParameter("category");
String submit=request.getParameter("submit");
%>
<%
try
File f1=new File(request.getParameter("file"));
File f2=new File("/ee/file1.txt");
InputStream is=new FileInputStream(f1);
OutputStream os=new FileOutputStream(f2);
byte buf[]=new byte[1024];
int len;
if(submit.equals("submit"))
%>
Company Name is:<%out.println(cname);%>
Category :<%out.println(category);%>
<%
while((len=is.read(buf))>0)
os.write(buf,0,len);
out.println("file copied");
else
out.println("invalid data");
is.close();
os.close();
out.println("file copied");
catch(FileNotFoundException ex)
out.println(ex);
catch(IOException eo)
out.println(eo);
catch(Exception e)
out.println(e);
finally
out.println("");
%>
</body>
</html>Hi,
Am not getting exception now.In the jsp wer I ve written connection,am taking some values using request.getParameter("msg") . I had opened the connection statement before getting these parameter values.Think I ws getting null pointer exception due to this.Now I have opened connection after getting these parameter values...anyway am not getting the exception now...
Thanks. -
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 with Lists
Hi,
I have got a problem with java.util.List. It is giving Null pointer exception whenever I try to add after extracting from my XML file.I have written the code like this:
List year; //Global variable
List loaddatas; //Global variable
Element e1; //Global
loaddatas=root.getChild("Load").getChildren("LoadData");
int k=loaddatas.size();
for(int i=0;i<loaddatas.size();i++)
e1=(Element)loaddatas.get(i);
year.add(i,Integer.valueOf(e1.getChildText("Year"))); // I am getting exception here.....
root is root element in XML file.
I am able to display "Integer.valueOf(e1.getChildText("Year"))" correctly.
Anybody please tell me how to solve this.
Thanks,
Sai RamLooks like somebody forgot to learn to program before starting to write code....
List list = new ArrayList(); -
Null pointer Exception with Custom EventQueue
I created a simple class customEventQueue which is extended from EventQueue class and pushed it using
Toolkit.getDefaultToolkit().getSystemEventQueue().push(customEventQueue);
Now, whenever there are three modal dialogs on top of a frame and if I click on top dialog that closes all three dialog boxes, I get nullpointer exception in console. The custom event class does not have any method in it. It just extends from EventQueue.
I checked it in different JRE and it happens only in JRE1.3.1.
Has anybody tried the same thing with custom event queue? Any help is most welcome. Thanks...
java.lang.NullPointerException
at sun.awt.windows.WInputMethod.dispatchEvent(Unknown Source)
at sun.awt.im.InputContext.dispatchEvent(Unknown Source)
at sun.awt.im.InputMethodContext.dispatchEvent(Unknown Source)Hi Chandel me having the same problem
java.lang.NullPointerException
at sun.awt.windows.WInputMethod.dispatchEvent(Unknown Source)
at sun.awt.im.InputContext.dispatchEvent(Unknown Source)
at sun.awt.im.InputMethodContext.dispatchEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown
Source)
at
java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Sour
ce)
at
java.awt.DefaultKeyboardFocusManager.pumpApprovedKeyEvents(Unknown So
urce)
at
java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Sour
ce)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown
Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.SequencedEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown
Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Th bigger problem is that i don't know what is causing this exception, cause the stack trace doesn't mention the line of code where the exception occurred.
In earlier version of java we had pData null pointer exception. This bug manifests when the pull down menu doesn't fit completely into the frame's bounds and swing has to create a seaprate window for the pull-down.
The problem is that WInputMethod caches a reference to peer and that that reference becomes stale when peer is destroyed and recreated.
In this bug cached peer reference becomes stale as the Window for the menu is hidden (and its peer is destroyed) and shown again (with new peer this time).
WInputMethod have a cached reference to the old peer but that old peer is not connected to the underlying native window used to display the menu.
But it's been fixed. I want to know if our problem is in some way related to this pData bug.
Thanx. -
Null pointer Exception with Float.parseFloat
I need to assign a float value from a database to a variable recurrently throughout a while loop. but i am getting a null pointer exception error:
while ( rs.next() )
out.println("<TR>");
float corr = Float.parseFloat((String) request.getParameter("echo"));
out.println("<center><TD><b><font color = #990000>" + rs.getString("race_number") + "</b></TD>");
out.println("<center><TD><b><font color = #990000>" + rs.getString("sail_number") + "</b></TD>");
out.println("<center><TD><b><font color = #990000>" + rs.getString("finish_time_elapsed") + "</b></TD>");
out.println("<center><TD><b><font color = #990000>" + rs.getString("echo") + "</b></TD>");
out.println("</TR>");
I've also tried:
float corr = Float.parseFloat( String request.getParameter("echo"));
float corr = 0;
corr Float.parseFloat((String) request.getParameter("echo"));
corr = echo;
corr = request.getParameter("echo");
corr = rs.getString("echo");
corr = Float.parseFloat(request.getParameter("echo"));
temp = rs.getFloat("Problem_Description");
Any ideas Please!!!Null pointer exception means that the value you are trying to turn into a Float is null. Probably request.getParameter("echo") returns null.
Is "echo" a request parameter, or a field you want to get from the database?
request.getParameter() has nothing to do with a database query.
That is your http request coming from the form submission. It won't change.
If "echo" is meant to be a request parameter, then make sure the parameter is actually present.
If its a database field (stored as a number) then
float corr = rs.getFloat("echo");
should do the trick.
Can the value be null in the database?
Cheers,
evnafets -
Null pointer Exception with removeRowWithKey operation
Hii experts,,,
I am using JDevelepor 11.1.2.1.0 Version
I Am new in ADF ,
In My sample application i select row in iterator by findIterator() method
then get the specified row by getCurrentRow();
then i get the rowKey By row.getKey() method..
I put rowKey as parameter to removeRowWithKey operation
I have get null pointer Exception with removeRowWithKey operation
java.lang.NullPointerException
at oracle.jbo.server.ViewRowSetImpl.prepKeyForFind(ViewRowSetImpl.java:5352)
at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5394)
at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5296)
at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5290)
at oracle.jbo.server.ViewObjectImpl.findByKey(ViewObjectImpl.java:11536)
at oracle.adf.model.binding.DCIteratorBinding.removeRowWithKey(DCIteratorBinding.java:3748)
at oracle.jbo.uicli.binding.JUCtrlActionBinding.doIt(JUCtrlActionBinding.java:1598)
how can solve this???thanks Timo
through this URL i get possible deletion methods...
pls give more Information about the concept of removeRowWithKey, setCurrentRowWithKey, setCurrentRowWithKeyValue operation.... Just For Knowledge....
Edited by: NZL on Mar 2, 2012 9:37 AM
Edited by: NZL on Mar 2, 2012 9:42 AM
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