Null Pointer errors with Mapviewer Demo

Here is the error:
xml_response=<?xml version="1.0" encoding="UTF-8"?><oms_error>Message:null
Thu Jan 16 15:14:43 MST 2003
Machine Node Name: hoas9ias
Severity: 0
Description:
java.lang.NullPointerException
 at oracle.spatial.mapserver.core.RealWorker.generateMapImage(RealWorker.java:267)
 at oracle.spatial.mapserver.core.RealWorker.process(RealWorker.java:95)
 at oracle.spatial.mapserver.MapServerImpl.renderMap(MapServerImpl.java:171)
 at oracle.spatial.mapserver.oms.doPost(oms.java:187)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:283)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:336)
 at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:59)
 at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
 at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:535)
 at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:281)
 at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:766)
 at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:152)
 at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:72)
 at Long postings are being truncated to ~1 kB at this time.

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Null pointer error if not started with 1st in string

hi, this little pratice is about building a simple shopping cart. the TOAD.JSP will display the item list and quantity, user could check item and input the quantity that they want. if the user input larger quantity than database, servlet will sent the back to TOAD.jsp and show message. now it works if selected from 1 item, but if selected 2nd or 3rd, it will have null pointer error over here:
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newit = (ItemBean)ItemList.get(i);
if (item != null && item.equals(newit.getItem()) )
%>
<tr>
<td ><input type="checkbox" name = "item" value="<%= newit.getItem() %>"><%= newit.getItem() %> </td>
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The item <%= newit.getItem() %> is NOT available in stock
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<%
} else {
%>
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You have prvided unsufficent information and poorly formatted code and as such no meaningful answer can given you at present.
But here is the best that one can guess at.
You have a null somewhere.
Is it coming from this code? I am going to say no.
Where does it come from? I don't know.
Where should you look? In the code that does processing to see what happens when yuo have more than one item.
What should you do next? Start putting in some debugging and tracing statements to see where you are heading off into the null abyss.

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
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     at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5394)
     at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5296)
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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

Simple question re: Avoiding null pointer errors

In my program, I ask the user to enter a 3-letter code, then try to determine whether that code belongs to one of a list of objects.
I keep getting null-pointer errors. I understand why, but don't know how to get around it. I don't know how to format my loop.
(Simple, I know. But I'm just starting out!)
Any help would be appreciated.

This may not come through clearly; my first day using this system.
The format I'm trying to use is this:
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http://www.oracle.com/technology/products/jdev/tips/muench/screencasts/threesearchpages/threesearchforms_partthree.html?_template=/ocom/technology/content/print
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J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:122) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:111) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298) at java.lang.Thread.run(Thread.java:595)Caused by: java.lang.NullPointerException at oracle.adf.model.binding.DCVariableImpl.resolveSourceVariable(DCVariableImpl.java:64) at oracle.adf.model.binding.DCVariableImpl.resolveResourceProperty(DCVariableImpl.java:142) at oracle.jbo.common.VariableImpl.getLabel(VariableImpl.java:800) at oracle.jbo.uicli.binding.JUCtrlValueBinding.getLabel(JUCtrlValueBinding.java:1384) at oracle.jbo.uicli.binding.JUCtrlValueBinding.internalGet(JUCtrlValueBinding.java:1726) at oracle.adfinternal.view.faces.model.binding.FacesCtrlAttrsBinding.internalGet(FacesCtrlAttrsBinding.java:156) at oracle.adf.model.binding.DCControlBinding.get(DCControlBinding.java:649) at com.sun.faces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:79) at oracle.adfinternal.view.faces.model.FacesPropertyResolver.getValue(FacesPropertyResolver.java:92) at com.sun.faces.el.impl.ArraySuffix.evaluate(ArraySuffix.java:187) at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:171) at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263) at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160) ... 97 more
Can anyone help me with this?

Please, post your question on JDeveloper forum (JDeveloper and ADF

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>");
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I've also tried:
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float corr = 0;
corr Float.parseFloat((String) request.getParameter("echo"));
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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

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Hi all,
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int pdfByteSize = pdfOutStream.size();
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Thanks for the Reply.
Before Null Pointer Exception I am getting another Fatal error:
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Please Help

Help please I get Null Pointer Exception with my SQL query

The following statement gives me a null pointer exception when executed
from the doPost of my servlet.
rs=stmt.executeQuery(sqlQuery);
The error message reads:
java.lang.NullPointerException
at stockserv.Servlet1.doPost(Servlet1.java:142)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
===etc.
when I execute the same statement and query (same DB and table) from a standard java
program I do not get the error and get the propper result.
Any obvious thing I should check?
Thanks

Yes line 142 is as follows
rs=stmt.executeQuery(sqlQuery);
I also tried it with the folowing literal statement and get the same error.
rs=stmt.executeQuery("select * from table1 Where symbol= 'brt' ");
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Again this same statment works from a regular java (non-server)program.
Thanks Again

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);
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Looks like somebody forgot to learn to program before starting to write code....
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Hi all,
I have been trying to fix this for a while now, but I think I've been staring at the screen for too long to fix it!
Basically I am trying to 'crossover' some arrays (evolutionary technique) but I keep getting a null pointer exception.
Here is my customised class: class ChromosomeDetails {
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     int[] chromosomePoints;
     int[] chromosomePlayerIDs;
     int chromosomeFitness;
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          this.chromosomePlayerIDs = chromosomePlayerIDs;
          this.chromosomeFitness = chromosomeFitness;
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          chromosomePoints = null;
          chromosomePlayerIDs = null;
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          return chromosomePrices;
     public int[] getPoints() {
          return chromosomePoints;
     public int[] getPlayerIDs() {
          return chromosomePlayerIDs;
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          return chromosomeFitness;
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ChromosomeDetails childChromosomeDDetails = new ChromosomeDetails();     I then try to 'crossover' the values in the arrays like so: int randomCrossoverPoint = new Random().nextInt(parentChromosomeADetails.chromosomePoints.length-1);
System.arraycopy(parentChromosomeADetails.chromosomePrices, 0, childChromosomeCDetails.chromosomePrices, 0, randomCrossoverPoint);
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                    However it gives me this error, relating to the first arraycopy method: Exception in thread "main" java.lang.NullPointerException
     at java.lang.System.arraycopy(Native Method)Please note that in this program, parentChromosomeADetails and parentChromosomeBDetails already hold data when I try to use the arraycopy method, whereas the childChromosomeCDetails and childChromosomeDDetails objects are empty, waiting for the data from the arraycopy methods. Any help would be immensely appreciated.

it was learning very well yesterday, but that was before I introduced my customised class. I need my class as I need to be able to keep hold of all of the data, rather than just the chromosome points, so that I can see the exact strategy that the algorithm uses.
It is indeed the child chromosome that is null, and I suppose that it because I had to initialise the int[] chromosomePoints, double[] chromosomePrices and int[] chromosomePlayerIDs as null. What is the best solution to this? using loops to initialise all values in the arrays as 0 before the arraycopy?!

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 iterator

Hi,
I'm trying to use an iterator on a collection bound to a jsf page fragment through datacontrol (data is retrieved from a web service).
Everything works fine except when this collection is null; I'm then getting a null pointer exception.
Is there an equivalent of <af:table emptytext="">? Or maybe, is there somewhere where I can configure my datacontrol to always return an empty collection instead of null?
Thanks.
Edit: my mistake; I made an error in the binding, which was pointing to another iterator already used.
Edited by: 965573 on 16 oct. 2012 02:17

Hi,
You can try not to render the table when the length of the Collection is zero. This can be done by a JSTL function "length" available at:
http://java.sun.com/jsp/jstl/functions
Ex:#{fn:length(bindings.Collection)>0}"
Thanks,

Null pointer exception with thread

ok,
When i try to start a thread i get a null pointer exception:
Exception in thread "Thread-2" java.lang.NullPointerException
        at MainWindow$8.run(MainWindow.java:274)
        at java.lang.Thread.run(Thread.java:619)Here is the thread code:
t = new Thread(new Runnable(){
         public void run(){
             for (int i = 100; i > 0; i--){
                 blockArray = p.physicsPass(blockArray);
                 repaintCanvas();
    t.start();After stepping through it it would appear the exception is thrown before physicsPass() gets called...
blockArray is not empty so im not sure what the null pointer is.
Its probably something obvious im missing, any ideas?
Cheers
J

JamesBarnes wrote:
look for the dots?
I dont understand, care to elaborate?In your code there was two dots:
blockArray = p.physicsPass(blockArray);
t.start();So either p was null or t was null.

Null pointer exception with inner class

Hi everyone,
I've written an applet that is an animation of a wheel turning. The animation is drawn on a customised JPanel which is an inner class called animateArea. The main class is called Rotary. It runs fine when I run it from JBuilder in the Applet Viewer. However when I try to open the html in internet explorer it gives me null pointer exceptions like the following:
java.lang.NullPointerException
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2761)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2722)
at Rotary$animateArea.paintComponent(Rotary.java:251)
at javax.swing.JComponent.paint(JComponent.java:808)
at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4771)
at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4724)
at javax.swing.JComponent._paintImmediately(JComponent.java:4668)
at javax.swing.JComponent.paintImmediately(JComponent.java:4477)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:117)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:448)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
Do inner classes have to be compiled seperately or anything?
Thanks a million for you time,
CurtinR

I think that I am using the Java plugin ( Its a computer in college so I'm not certain but I just tried running an applet from the Swing tutorial and it worked)
Its an image of a rotating wheel and in each sector of the wheel is the name of a person - when you click on the sector it goes red and the email window should come up (that doesn't work yet though). The stop and play buttons stop or start the animation. It is started by default.
This is the code for the applet:
import java.applet.*;
import javax.swing.JApplet;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.awt.geom.*;
import javax.swing.*;
import java.awt.image.*;
import java.util.StringTokenizer;
import java.net.*;
public class Rotary extends JApplet implements ActionListener, MouseListener
public boolean rotating;
private Timer timer;
private int delay = 1000;
private AffineTransform transform;
private JTextArea txtTest; //temp
private Container c;
private animateArea wheelPanel;
private JButton btPlay, btStop;
private BoxLayout layout;
private JPanel btPanel;
public Image wheel;
public int currentSector;
public String members[];
public int [][]coordsX, coordsY; //stores sector no. and x or y coordinates for that point
final int TOTAL_SECTORS= 48;
//creates polygon array - each polygon represents a sector on wheel
public Polygon polySector1,polySector2,polySector3, polySector4, polySector5,polySector6,polySector7,polySector8,polySector9,polySector10,
polySector11,polySector12,polySector13,polySector14,polySector15,polySector16,polySector17,polySector18,polySector19,polySector20,
polySector21,polySector22,polySector23,polySector24,polySector25,polySector26,polySector27,polySector28,polySector29,polySector30,
polySector31,polySector32,polySector33,polySector34,polySector35,polySector36,polySector37,polySector38,polySector39,polySector40,
polySector41,polySector42,polySector43,polySector44,polySector45,polySector46,polySector47,polySector48;
public Polygon polySectors[]={polySector1,polySector2,polySector3, polySector4, polySector5,polySector6,polySector7,polySector8,polySector9,polySector10,
 polySector11,polySector12,polySector13,polySector14,polySector15,polySector16,polySector17,polySector18,polySector19,polySector20,
 polySector21,polySector22,polySector23,polySector24,polySector25,polySector26,polySector27,polySector28,polySector29,polySector30,
 polySector31,polySector32,polySector33,polySector34,polySector35,polySector36,polySector37,polySector38,polySector39,polySector40,
 polySector41,polySector42,polySector43,polySector44,polySector45,polySector46,polySector47,polySector48};
public void init()
members = new String[TOTAL_SECTORS];
coordsX= new int[TOTAL_SECTORS][4];
coordsY= new int[TOTAL_SECTORS][4];
currentSector = -1;
rotating = true;
transform = new AffineTransform();
//***********************************Create GUI**************************
wheelPanel = new animateArea(); //create a canvas where the animation will be displayed
wheelPanel.setSize(600,580);
wheelPanel.setBackground(Color.yellow);
btPanel = new JPanel(); //create a panel for the buttons
btPanel.setLayout(new BoxLayout(btPanel,BoxLayout.Y_AXIS));
btPanel.setBackground(Color.blue);
btPanel.setMaximumSize(new Dimension(30,580));
btPanel.setMinimumSize(new Dimension(30,580));
btPlay = new JButton("Play");
btStop = new JButton("Stop");
//txtTest = new JTextArea(5,5); //temp
btPanel.add(btPlay);
btPanel.add(btStop);
// btPanel.add(txtTest); //temp
c = getContentPane();
layout = new BoxLayout(c,layout.X_AXIS);
c.setLayout(layout);
c.add(wheelPanel); //add panel and animate canvas to the applet
c.add(btPanel);
wheel = getImage(getDocumentBase(),"rotary2.gif");
getParameters();
for(int k = 0; k <TOTAL_SECTORS; k++)
polySectors[k] = new Polygon();
for(int n= 0; n<4; n++)
polySectors[k].addPoint(coordsX[k][n],coordsY[k][n]);
btPlay.addActionListener(this);
btStop.addActionListener(this);
wheelPanel.addMouseListener(this);
startAnimation();
public void mouseClicked(MouseEvent e)
if (rotating == false) //user can only hightlight a sector when wheel is not rotating
for(int h= 0; h<TOTAL_SECTORS; h++)
if(polySectors[h].contains(e.getX(),e.getY()))
currentSector = h;
wheelPanel.repaint();
email();
public void mouseExited(MouseEvent e){}
public void mouseEntered(MouseEvent e){}
public void mouseReleased(MouseEvent e){}
public void mousePressed(MouseEvent e){}
public void email()
try
URL rotaryMail = new URL("mailto:[email protected]");
getAppletContext().showDocument(rotaryMail);
catch(MalformedURLException mue)
System.out.println("bad url!");
public void getParameters()
StringTokenizer stSector;
String parCoords;
for(int i = 0; i <TOTAL_SECTORS; i++)
{ //put member names in applet parameter list into an array
members[i] = getParameter("member"+i);
//separate coordinate string and store coordinates in 2 arrays
parCoords=getParameter("sector"+i);
stSector = new StringTokenizer(parCoords, ",");
for(int j = 0; j<4; j++)
coordsX[i][j] = Integer.parseInt(stSector.nextToken());
coordsY[i][j] = Integer.parseInt(stSector.nextToken());
public void actionPerformed(ActionEvent e)
wheelPanel.repaint(); //repaint when timer event occurs
if (e.getActionCommand()=="Stop")
stopAnimation();
else if(e.getActionCommand()=="Play")
startAnimation();
public void startAnimation()
if(timer == null)
timer = new Timer(delay,this);
timer.start();
else if(!timer.isRunning())
timer.restart();
Thanks so much for your help!

Null pointer exception with ImageToBuffer.create(........)

I'm trying to draw two lines on received video frames so I implemented an effect that takes a frame then :
frame = Buffer -> Image -> BufferedImage -> draw lines -> Image -> Buffer ( Problem ).
the problem is in converting the Image back to Buffer in order to assign it as the Effect outcome buffer ( which will be showed ), the process function code is as followed :
BufferToImage bti;
ImageToBuffer itb;
public int process(Buffer inBuffer, Buffer outBuffer)
Object data = inBuffer.getData();
if (bti == null)
bti = new BufferToImage( (VideoFormat) inBuffer.getFormat());
Image image = bti.createImage(inBuffer);
if (image != null)
Graphics2D g = bImage.createGraphics();
g.drawImage(image, null, null);
g.drawLine(160, 0, 160, 240);
g.drawLine(0, 120, 320, 120);
if (itb == null)
itb = new ImageToBuffer();
Image i = Toolkit.getDefaultToolkit().createImage(bImage.getSource());
if (b == null)
b = new Buffer();
b = itb.createBuffer(i, 15); ///causes null pointer exception
if (b != null)
inBuffer.setData(outBuffer.getData());
outBuffer.setData(b.getData());
else
inBuffer.setData(outBuffer.getData());
outBuffer.setData(data);
// Copy the input attributes to the output
outBuffer.setFormat(inBuffer.getFormat());
outBuffer.setLength(inBuffer.getLength());
outBuffer.setOffset(inBuffer.getOffset());
return BUFFER_PROCESSED_OK;
Any solutions for the problem.
Thank you for replying in advance..

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

Null Pointer errors with Mapviewer Demo

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