Servlet Crashing JVM!!

We have been having a problem lately with Java crashing on our production machines. All of the java we use is wrapped around servlet applications, and I am getting the following error in the Tomcat log... any ideas on what can cause this?
SIGSEGV 11 segmentation violation
si_signo [11]: SEGV
si_errno [0]:
si_code [1]: SEGV_MAPERR [addr: 0xff00]
stackpointer=D999FF18
Inconsistent thread : best efforts attempt (may fail)
"Thread-8 Labels" (TID:0x27858f8, sys_thread_t:0x2785830, state:CW, thread_t: t@2324, threadID:0xd90f1d70, stack_bottom:0xd90f1d70,
stack_size:0x1fd70) prio=5
[1] java.lang.Object.wait(Object.java:424)
[2] com.mapinfo.graphics.text.ba.run(Unknown Source)
[3] java.lang.Thread.run(Thread.java:478)
-------------------

Sounds like you've got a problem with your native thread libraries, or something native (and nasty) is happening in that 'com.mapinfo.graphics.text.ba.run' package.
You didn't say which OS, etc... you are running, but make sure you have the latest stable kernels and thread libraries installed.
What you are showing is most likely not a JVM issue.
- K

Similar Messages

Printing report that has a parameter with multiple values crashes jvm

I am using BOE XI 4.0 as an unmanaged RAS.
I am able to preview a report that has a string discrete parameter that can have multiple values. If I give it a single value. It previews fine. If I give it an empty string it prints all values which is fine. If I give it two discrete values, it displays just those two.
However, if I try printing the report to a printer:
1 parameter value - prints fine.
2 parameter values - crashes jvm
empty string parameter value - crashes jvm
I would appreciate some direction on how to do this. It works in crystal reports for eclipse.
The test jsp I am using is based off of the samples. The print test jsp is the same as the preview test with the exception of the following code differences.:
preview report.jsp code
// Create a Viewer object
CrystalReportViewer viewer = new CrystalReportViewer();
// Set the report source for the viewer to the ReportClientDocument's report source
viewer.setReportSource(clientDoc.getReportSource());
// Process the http request to view the report
viewer.processHttpRequest(request, response, getServletConfig().getServletContext(), out);
// Dispose of the viewer object
viewer.dispose();
print report jsp code
PrintReportOptions printOptions = new PrintReportOptions();
printOptions.setPrinterName("DELL");
try {
      clientDoc.getPrintOutputController().printReport(printOptions);
} catch (ReportSDKException ex1) {
      System.out.println("Message - " + ex1.getLocalizedMessage());
} catch (Exception ex2) {
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clientDoc.close();

I am using BOE XI 4.0 as an unmanaged RAS.
I am able to preview a report that has a string discrete parameter that can have multiple values. If I give it a single value. It previews fine. If I give it an empty string it prints all values which is fine. If I give it two discrete values, it displays just those two.
However, if I try printing the report to a printer:
1 parameter value - prints fine.
2 parameter values - crashes jvm
empty string parameter value - crashes jvm
I would appreciate some direction on how to do this. It works in crystal reports for eclipse.
The test jsp I am using is based off of the samples. The print test jsp is the same as the preview test with the exception of the following code differences.:
preview report.jsp code
// Create a Viewer object
CrystalReportViewer viewer = new CrystalReportViewer();
// Set the report source for the viewer to the ReportClientDocument's report source
viewer.setReportSource(clientDoc.getReportSource());
// Process the http request to view the report
viewer.processHttpRequest(request, response, getServletConfig().getServletContext(), out);
// Dispose of the viewer object
viewer.dispose();
print report jsp code
PrintReportOptions printOptions = new PrintReportOptions();
printOptions.setPrinterName("DELL");
try {
      clientDoc.getPrintOutputController().printReport(printOptions);
} catch (ReportSDKException ex1) {
      System.out.println("Message - " + ex1.getLocalizedMessage());
} catch (Exception ex2) {
      System.out.println("Message - " + ex2.getLocalizedMessage());
clientDoc.close();

Servlet crashes TOMCAT

I am experimenting with buffered images in a servlet. This "Hello World" servlet crashes TOMCAT.
java version "1.4.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1)
Java HotSpot(TM) Client VM (build 1.4.1, mixed mode)
JAVA_OPTS '-Xmx512m -Djava.awt.headless=true'
----servlet begins----
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.awt.*;
import java.awt.image.*;
import Acme.JPM.Encoders.GifEncoder;
public class MijnPollServlet extends HttpServlet
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
doPost(req,res);
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
BufferedImage image=
new BufferedImage(100,100, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.setColor(Color.blue);
g2.fillRect(25,25,50,50);
g2.drawString("Hello World!", 10, 10);
ServletOutputStream out = res.getOutputStream(); // binary output!
res.setContentType("image/gif");
GifEncoder encoder = new GifEncoder(image, out);
encoder.encode();
----servlet ends----
If I run the servlet with the "g2.drawString("Hello World!", 10, 10);"
commented out there is no problem.
Is there something I am missing here?
Thank you,
-William

The whole Tomcat crashes, and no exception
displayed.
Do I have to write the log file, or it's kept by
Tomcat itself?yes, tomcat writes a log file, you find it in the tomcat dir. but it's just very highlevel. Having a look in it could help.
Is there a way to write a log file by myself?sure. you could get the log file from tomcat by getting it from the ServletContext:
ServletContext = getServletContext();
ServletContext.log("text to log");
When I view the output window in Forte, it doesn't
even write that Tomcat crashed.
I use Tomcat that is installed with the last version
of Forte(Sun 1 Studio, update 1), I guess it's the
last version of Tomcat also.No. The lastest is 4.1.12 and i guess it's 4.0.4 with forte.
Get Tomcat standalone from jakarta.apache.org and try to run your servlet with the standalone tomcat. this could help since i also expirenced problems sometimes with the forte-integrated tomcat.

Sample code to crash JVM

Hi,
I am working on a program that do not report the stack trace from a crashed JVM (this is reported by customer).
However i do not know how to crash a JVM, using a simple java application, so as to debug the above problem.
Can someone please suggest a simple java application to cause JVM crash (JDK1.4.2.10 or JDK 1.5.x)
Thanks

Hi,
//add the following line anywhere
//credits++ to [email protected]
import sun.dc.pr.PathDasher //[goes to the top alongwith other import(s)]
PathDasher dasher = new PathDasher(null) ;
//The JVM crashes when this line is executed
// This is worrying because even Tiger [5] crashes
Thanks
Message was edited by: SamratBanerjea
SamratBanerjea

Servlet crash

I have a servlet (singlethreadmodel) running on a tomcat server.
and there are some 20 clients (applets) connected to the servlet. it is netwrok game in which each player sends data to the servlet. after each of them finsihes giving the input some calculations are made on the server side.
all these clients have a timer and keeps checking if everyone has finished. when everyone is done with the inputs, at the next timer the servlet responds with the data.
this process is one round and there several rounds like this..
the problem is the servlet some times hangs, stops responding to the clients and the client keeps waiting for the response and the whole game is hung.
some times it crashes.
can anyone help me here..what might be the problem.

Hii .. this is the actual info abt -X options in JVM.
Xmsn
Specify the initial size, in bytes, of the memory allocation pool. This value must be a multiple of 1024 greater than 1MB. Append the letter k or K to indicate kilobytes, or m or M to indicate megabytes. The default value is 2MB. Examples:
-Xms6291456
-Xms6144k
-Xms6m
-Xmxn
Specify the maximum size, in bytes, of the memory allocation pool. This value must a multiple of 1024 greater than 2MB. Append the letter k or K to indicate kilobytes, or m or M to indicate megabytes. The default value is 64MB. Examples:
-Xmx83886080
-Xmx81920k
-Xmx80m

JMF crash jvm EXCEPTION_STACK_OVERFLOW

Hi ,
I am facing a problem where JMF is causing JVM to crash while i am playing videos change from one to other. Can anyone give me some opinion why this happened? Urgent , thx
# EXCEPTION_STACK_OVERFLOW (0xc00000fd) at pc=0x7c90e8ee, pid=632, tid=2616
# Java VM: Java HotSpot(TM) Client VM (11.3-b02 mixed mode, sharing windows-x86)
# Problematic frame:
# C [ntdll.dll+0xe8ee]
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
--------------- T H R E A D ---------------
Current thread (0x040a1400): JavaThread "Loop thread: com.omnividea.media.parser.video.AudioTrack@b65c13" [_thread_in_native, id=2616, stack(0x06c80000,0x06d00000)]
Here is the code i start and close the video :
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Start function :
public void drawContent(String path)
String mediaFile = null;
// URL for our media file
MediaLocator mrl = null;
URL url = null;
// Get the media filename info.
// The applet tag should contain the path to the
// source media file, relative to the html page.
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Stop function :
public synchronized void controllerUpdate(ControllerEvent event) {
else if (event instanceof EndOfMediaEvent) {
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call start function to start another video
#############################################################################

2 thoughts...
First, player.realize is a non-blocking asyncronous call. You need to wait for the player to enter the realized state before you call start on it.
Second,
player.stop();
player.close();
player.deallocate();
player.realize();
player = null;
Why in the name of God are you realizing a deallocated player? This is probably your problem, because players can't be garbage collected if they're not stopped, and a realized player isn't stopped.
Take out the player.realize() in the above snippet, because that's a memory leak.

BLOB access in servlet crash.. HELP !!!

Linux Mandrake 7.02 / Sun SDK 1.2.2 SE / Tomcat 3.1 / Oracle 8.0.5 / JDBC 1.2.X
I've got a table which have a LOB column.
I want to retrieve this LOB.
When I do it in a java program, all is well, I get the image in the LOB.
When I put the code in a servlet (ran in Tomcat), Oracle crash with error :
ORA-03115: unsupported network datatype or representation
I checked CLASSPATH for the two runs, all seems ok ...
I don't understand the meaning of this error
Please HELP !!!

[http://forums.sun.com/thread.jspa?threadID=5350426]
Crossposting without notification is very rude. Please stick to one topic.

Servlet Crashing in IE 6

I have had a problem displaying servlet pages in IE 6. Most of the time the pages display fine but occasionaly long pages will crash and I will get a "Page Cananot Be Displayed" html error. If i keep trying to display the same page it will mostly continue to crash but ocasionaly it will display properly. I switched to a Netscape 4.7 browser and it worked perfectly each time. However, I was unable to print the displayed page because I do not cach the pages. I upgraded Netscape to 6.2 and it worked fine, displaying pages and allowed me to print. Obviously IE processes html pages diferntly than Netscape, does anyone understand these difernces. I have a controled enviorment here and can force users to use Netscape, but that will not work on interner applications. How can I get these page to display consistantly in IE.
Thanks

How long are the pages that crash? Are they very long?
Couldn't you look at splitting up the pages with links between them, rather like these forums, or google search results?

JDriver for Oracle crashes JVm on solaris

Hi,
I'm using the weblogic jDriver/XA for oracle with oracle 8.1.7 on solaris 2.8.
The weblogic version is 6.1 SP2.
The JVM randomly crashes with this error:
Is the jDriver/XA that comes with weblogic stable ?
Has the jDriver that comes with wlserver 6.1 SP3 fixed this problem ?
Unexpected Signal : 11 occurred at PC=0xfe557f64
Function name=JVM_InternString
Library=/bea/jdk131/jre/lib/sparc/hotspot/libjvm.so
Current Java thread:
     at weblogic.jdbc.oci.xa.XA.native_start(Native Method)
     at weblogic.jdbc.oci.xa.XA.start(XA.java:70)
     at weblogic.jdbc.oci.xa.XADataSource.start(XADataSource.java:640)
     at weblogic.jdbc.jta.DataSource.detectedUnavailable(DataSource.java:445)
     at weblogic.transaction.internal.ResourceDescriptor$2.execute(ResourceDescriptor.java:991)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Dynamic libraries:
0x10000      /bea/jdk131/jre/bin/../bin/sparc/native_threads/java
0xff350000      /usr/lib/libthread.so.1
0xff390000      /usr/lib/libdl.so.1
0xff200000      /usr/lib/libc.so.1
0xff330000      /usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1
0xfe400000      /bea/jdk131/jre/lib/sparc/hotspot/libjvm.so
0xff2e0000      /usr/lib/libCrun.so.1
0xff1e0000      /usr/lib/libsocket.so.1
0xff100000      /usr/lib/libnsl.so.1
0xff0d0000      /usr/lib/libm.so.1
0xff310000      /usr/lib/libw.so.1
0xff0b0000      /usr/lib/libmp.so.2
0xff080000      /bea/jdk131/jre/lib/sparc/native_threads/libhpi.so
0xff050000      /bea/jdk131/jre/lib/sparc/libverify.so
0xfe7c0000      /bea/jdk131/jre/lib/sparc/libjava.so
0xff020000      /bea/jdk131/jre/lib/sparc/libzip.so
0xfe3b0000      /usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2
0xfe390000      /bea/jdk131/jre/lib/sparc/libnet.so
0xfaed0000      /usr/lib/nss_files.so.1
0xd9200000      /bea/wlserver6.1/lib/solaris/oci817_8/libweblogicoci37.so
0xd8400000      /u01/app/oracle/product/8.1.7/lib/libclntsh.so.8.0
0xfad90000      /usr/lib/libC.so.5
0xfaea0000      /u01/app/oracle/product/8.1.7/lib/libwtc8.so
0xface0000      /usr/lib/libgen.so.1
0xfacc0000      /usr/lib/libsched.so.1
0xfaca0000      /usr/lib/libaio.so.1
0xfac80000      /bea/wlserver6.1/lib/solaris/oci817_8/libweblogicoxa37.so
0xfac10000      /bea/jdk131/jre/lib/sparc/libioser12.so
0xdeae0000      /bea/jdk131/jre/lib/sparc/libawt.so
0xd7480000      /bea/jdk131/jre/lib/sparc/motif21/libmawt.so
0xdc8b0000      /bea/jdk131/jre/bin/../lib/sparc/libmlib_image.so
0xd7200000      /usr/dt/lib/libXm.so.4
0xd7190000      /usr/openwin/lib/libXt.so.4
0xdc7d0000      /usr/openwin/lib/libXext.so.0
0xdce60000      /usr/openwin/lib/libXtst.so.1
0xd7080000      /usr/openwin/lib/libX11.so.4
0xdc7b0000      /usr/openwin/lib/libSM.so.6
0xdc6d0000      /usr/openwin/lib/libICE.so.6
0xdc6a0000      /usr/openwin/lib/libdga.so.1
0xd6f80000      /bea/jdk131/jre/lib/sparc/libfontmanager.so
0xdc5a0000      /usr/openwin/lib/libdps.so.5
0xdc4c0000      /bea/jdk131/jre/lib/sparc/libdcpr.so
0xdc3b0000      /bea/jdk131/jre/lib/sparc/libcmm.so
0xdc2c0000      /bea/jdk131/jre/lib/sparc/libjpeg.so
0xdc890000      /bea/wlserver6.1/lib/solaris/libmuxer.so
0xdc4a0000      /usr/ucblib/libucb.so.1
0xdc790000      /usr/lib/libresolv.so.1
0xdc1c0000      /usr/lib/libelf.so.1
Local Time = Sun Aug 25 19:12:47 2002
Elapsed Time = 21231
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002BD 01
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
# Java VM: Java HotSpot(TM) Client VM (1.3.1_04-b02 mixed mode)
# An error report file has been saved as hs_err_pid342.log.
# Please refer to the file for further information.

We have observed some problems for XA in oracle 817 client. You should use 901 client and 901 jDriver
to talk to 817 database as a solution.
Mitesh
prajod wrote:
Hi,
I'm using the weblogic jDriver/XA for oracle with oracle 8.1.7 on solaris 2.8.
The weblogic version is 6.1 SP2.
The JVM randomly crashes with this error:
Is the jDriver/XA that comes with weblogic stable ?
Has the jDriver that comes with wlserver 6.1 SP3 fixed this problem ?
Unexpected Signal : 11 occurred at PC=0xfe557f64
Function name=JVM_InternString
Library=/bea/jdk131/jre/lib/sparc/hotspot/libjvm.so
Current Java thread:
at weblogic.jdbc.oci.xa.XA.native_start(Native Method)
at weblogic.jdbc.oci.xa.XA.start(XA.java:70)
at weblogic.jdbc.oci.xa.XADataSource.start(XADataSource.java:640)
at weblogic.jdbc.jta.DataSource.detectedUnavailable(DataSource.java:445)
at weblogic.transaction.internal.ResourceDescriptor$2.execute(ResourceDescriptor.java:991)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Dynamic libraries:
0x10000 /bea/jdk131/jre/bin/../bin/sparc/native_threads/java
0xff350000 /usr/lib/libthread.so.1
0xff390000 /usr/lib/libdl.so.1
0xff200000 /usr/lib/libc.so.1
0xff330000 /usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1
0xfe400000 /bea/jdk131/jre/lib/sparc/hotspot/libjvm.so
0xff2e0000 /usr/lib/libCrun.so.1
0xff1e0000 /usr/lib/libsocket.so.1
0xff100000 /usr/lib/libnsl.so.1
0xff0d0000 /usr/lib/libm.so.1
0xff310000 /usr/lib/libw.so.1
0xff0b0000 /usr/lib/libmp.so.2
0xff080000 /bea/jdk131/jre/lib/sparc/native_threads/libhpi.so
0xff050000 /bea/jdk131/jre/lib/sparc/libverify.so
0xfe7c0000 /bea/jdk131/jre/lib/sparc/libjava.so
0xff020000 /bea/jdk131/jre/lib/sparc/libzip.so
0xfe3b0000 /usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2
0xfe390000 /bea/jdk131/jre/lib/sparc/libnet.so
0xfaed0000 /usr/lib/nss_files.so.1
0xd9200000 /bea/wlserver6.1/lib/solaris/oci817_8/libweblogicoci37.so
0xd8400000 /u01/app/oracle/product/8.1.7/lib/libclntsh.so.8.0
0xfad90000 /usr/lib/libC.so.5
0xfaea0000 /u01/app/oracle/product/8.1.7/lib/libwtc8.so
0xface0000 /usr/lib/libgen.so.1
0xfacc0000 /usr/lib/libsched.so.1
0xfaca0000 /usr/lib/libaio.so.1
0xfac80000 /bea/wlserver6.1/lib/solaris/oci817_8/libweblogicoxa37.so
0xfac10000 /bea/jdk131/jre/lib/sparc/libioser12.so
0xdeae0000 /bea/jdk131/jre/lib/sparc/libawt.so
0xd7480000 /bea/jdk131/jre/lib/sparc/motif21/libmawt.so
0xdc8b0000 /bea/jdk131/jre/bin/../lib/sparc/libmlib_image.so
0xd7200000 /usr/dt/lib/libXm.so.4
0xd7190000 /usr/openwin/lib/libXt.so.4
0xdc7d0000 /usr/openwin/lib/libXext.so.0
0xdce60000 /usr/openwin/lib/libXtst.so.1
0xd7080000 /usr/openwin/lib/libX11.so.4
0xdc7b0000 /usr/openwin/lib/libSM.so.6
0xdc6d0000 /usr/openwin/lib/libICE.so.6
0xdc6a0000 /usr/openwin/lib/libdga.so.1
0xd6f80000 /bea/jdk131/jre/lib/sparc/libfontmanager.so
0xdc5a0000 /usr/openwin/lib/libdps.so.5
0xdc4c0000 /bea/jdk131/jre/lib/sparc/libdcpr.so
0xdc3b0000 /bea/jdk131/jre/lib/sparc/libcmm.so
0xdc2c0000 /bea/jdk131/jre/lib/sparc/libjpeg.so
0xdc890000 /bea/wlserver6.1/lib/solaris/libmuxer.so
0xdc4a0000 /usr/ucblib/libucb.so.1
0xdc790000 /usr/lib/libresolv.so.1
0xdc1c0000 /usr/lib/libelf.so.1
Local Time = Sun Aug 25 19:12:47 2002
Elapsed Time = 21231
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002BD 01
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
# Java VM: Java HotSpot(TM) Client VM (1.3.1_04-b02 mixed mode)
# An error report file has been saved as hs_err_pid342.log.
# Please refer to the file for further information.

JFileChooser crashes JVM - bug basically ignored. What can I do?

See:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7160713
The bug has been marked as incomplete,needs more info, and "Low Prioroty" - Yet there is no mechanism to provide any more information. There is no way to add comments, or vote. The bug brings down the entire JVM with a native crash and it is trivial to reproduce.
I would provide any information that is asked of me - but I need a way to do it. I think I got an email request for info (It's been a while now), but replies to the email bounced, and as noted above the bug page has no way to give feedback.
Use any JFileChooser, click on the "Details" view. Then start clicking on column headings... after a few clicks the JVM crashes. Tested again with 7u6 - still crashes.

This reproduces the problem more reliably for me.
* JFileChooser Windows Crash
package filechoosercrash;
import java.awt.AWTEvent;
import java.awt.BorderLayout;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.event.AWTEventListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.util.concurrent.CountDownLatch;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.LookAndFeel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.UnsupportedLookAndFeelException;
* @author scott
public class FileChooserCrash {
     static CountDownLatch latch = new CountDownLatch(1);
     static JFrame frame;
     static JButton button;
     static JFileChooser chooser;
     static Robot robot;
     private static AWTEventListener terminator = new AWTEventListener() {
          @Override
          public void eventDispatched(AWTEvent event) {
               System.exit(10);
      * @param args the command line arguments
     public static void main(final String[] args) throws Exception {
          SwingUtilities.invokeLater(new Runnable() {
               @Override
               public void run() {
                    try {
                         swingMain(args);
                    } catch (Exception ex) {
                         Logger.getLogger(FileChooserCrash.class.getName()).log(Level.SEVERE, null, ex);
          latch.await();
          // do the clicks
          sleep(3000);
          Toolkit.getDefaultToolkit().addAWTEventListener(terminator, AWTEvent.KEY_EVENT_MASK);
          long now = System.currentTimeMillis();
          for (int c = 0; c < 10; c++) {
               Window w = JDialog.getWindows()[1]; // better be there!
               System.out.println("w=" + w);
               int detailsX = w.getX() + w.getWidth() - 36;
               int detailY = w.getY() + 50;
               int headingY = w.getY() + 100;
               System.out.println("details at " + detailsX + ", " + detailY);
               // Click details
               robot.mouseMove(detailsX, detailY);
               clickMouse();
               sleep(100);
               // Click column headings
               while (System.currentTimeMillis() - now < 2 * 1000) {
                    int headingX = w.getX() + (w.getWidth()/2) + (int) (Math.random() * (w.getWidth()/2));
                    robot.mouseMove(headingX, headingY);
                    clickMouse();
                    sleep(300);
               // Cancel
               robot.mouseMove(w.getX() + w.getWidth() - 36, w.getY() + w.getHeight() - 36);
               clickMouse();
               sleep(300);
               // re-open
               robot.mouseMove(frame.getX() + 36, frame.getY() + 36);
               clickMouse();
               sleep(1000);
               now = System.currentTimeMillis();
     private static void sleep(int millis) {
          try {
               Thread.sleep(millis);
          } catch (InterruptedException ex) {
     private static void clickMouse() {
          robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
          sleep(100);
          robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
     private static void swingMain(String[] args) throws Exception {
          //switchToNimbus();
          robot = new Robot();
          frame = new JFrame("JFileChooser Crash Test");
          button = new JButton("Start...");
          button.addActionListener(new ActionListener() {
               @Override
               public void actionPerformed(ActionEvent e) {
                    showFileChooser(frame);
          frame.getContentPane().add(button, BorderLayout.CENTER);
          frame.getContentPane().add(new JLabel("Press \"Start...\" and let go of the mouse. Robot will be used to change FileChooser to details view and then quickly click column headings until the crash."), BorderLayout.SOUTH);
          frame.pack();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setVisible(true);
     static void showFileChooser(JFrame parent) {
          chooser = new JFileChooser("C:\\");
          latch.countDown();
          chooser.showOpenDialog(parent);
     private static void switchToNimbus() throws UnsupportedLookAndFeelException, IllegalAccessException, InstantiationException, ClassNotFoundException {
          for (LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
               if (laf.getName().startsWith("Nimbus")) {
                    System.out.println("Using " + laf.getName());
                    UIManager.setLookAndFeel(laf.getClassName());
                    break;
}

Runtime.exec() crashes JVM

I wrote a program that runs a Perl script repeatedly via Runtime.exec().
Q: Under what circumstances would this procedure silently crash the JVM? I am experiencing this behavior on Linux using Sun's JDK as well as IBM's. There is no error output. The program simply exits. What is causing this? And, how can it be avoided? If there is a way to recover from whatever problem is occurring, that would be ideal.

Thanks jschell! Your input is helpful.
I suspect that case #4 is in play here. When I run my program with the "-Xrs" switch, "Terminated" is outputted just before the JVM exits. Is there any way to intercept the signal to terminate from the child process before the JVM exits?
NOTE: I am not running Runtime.exec() concurrently and I am explicitly destroying each Process after process.waitFor(). Also, I tend to watch the linux "top" output to confirm that only one Perl process is running at a time. I have tried various versions of a "runCommand" method. The current version spawns no additional threads:
public static int runCommand(String[] command) throws InterruptedException, IOException
          ProcessBuilder builder = new ProcessBuilder(command);
          builder.redirectErrorStream(true);
          Process process = builder.start();
          InputStream input = null;
          InputStream error = null;
          OutputStream output = null;
          BufferedReader reader;
          String line;
          try     {
               input = process.getInputStream();
               error = process.getErrorStream();
               output = process.getOutputStream();
               reader = new BufferedReader(new InputStreamReader(input));
               while ((line = reader.readLine()) != null)
                    System.out.println(line);
               return process.waitFor();
          finally
               close(output);
               close(error);
               close(input);
               process.destroy();
          }

BufferedImage.createGraphics crashes JVM

Hi,
I want to add some annotations such as lines, text into an image loaded into a BufferedImage. The way I do this is like this:
BufferedImage aBufferedImage = new BufferedImage(cm, raster, false, null);
Graphics g = aBufferedImage.createGraphics();
g.draw .... etc.
ImageIO.write(aBufferedImage, "jpg", new File(inFileName));
However, JVM crashes with message like these:
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x7D51DC
Function=JNU_GetEnv+0xC
Library=C:\Program Files\jdk1.4.2_06\jre\bin\java.dll
Current Java thread:
at sun.awt.font.NativeFontWrapper.registerFonts(Native Method)
- locked <0x14206c48> (a java.lang.Class)
at sun.java2d.SunGraphicsEnvironment.addPathFonts(SunGraphicsEnvironment.java:800)
at sun.java2d.SunGraphicsEnvironment.registerFonts(SunGraphicsEnvironment.java:643)
at sun.java2d.SunGraphicsEnvironment.access$200(SunGraphicsEnvironment.java:53)
at sun.java2d.SunGraphicsEnvironment$1.run(SunGraphicsEnvironment.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at sun.java2d.SunGraphicsEnvironment.<init>(SunGraphicsEnvironment.java:85)
at sun.awt.Win32GraphicsEnvironment.<init>(Win32GraphicsEnvironment.java:54)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:308)
at java.lang.Class.newInstance(Class.java:261)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
- locked <0x141b3810> (a java.lang.Class)
at java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1041)
at com.amicas.renderer.JImageRenderer.render(JImageRenderer.java:79)
at com.amicas.renderer.JRendererTest.run(JRendererTest.java:47)
at java.lang.Thread.run(Thread.java:534)
Note that I never create any AWT or Swing component. The program is supposed to generate dynamic images inside a server and send images to clients.
Has anybody experienced this? Any clue why it happened?
Thanks!

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4482430

Collect -h crashes JVM

I installed Sun Studio Express 07/08 on my Niagara2 machine. When I ran collect with options -j and -h to measure cache misses of Java programs, the JVM crashed with segmentation fault. Without -h option, it works fine. But with any HW counters and with any Java programs, JVM crashes.
# uname -sri
SunOS 5.10 SUNW,SPARC-Enterprise-T5220
# /disk2/StudioExpress/SUNWspro/bin/collect -V
collect: Sun Ceres Analyzer 7.7 SunOS_sparc 2008/07/10
# /disk2/StudioExpress/SUNWspro/bin/collect -j on -h ecdm,10007 -d /tmp /opt/jdk1.6.0_07/bin/java -jar /opt/jdk1.6.0_07/demo/jfc/Java2D/Java2Demo.jar
Creating experiment database /tmp/test.139.er ...
Segmentation Fault (core dumped)
# dbx /opt/jdk1.6.0_07/bin/java core
For information about new features see `help changes'
To remove this message, put `dbxenv suppress_startup_message 7.6' in your .dbxrc
Reading java
core file header read successfully
Reading ld.so.1
Reading libcollector.so
Reading libthread.so.1
Reading libjli.so
Reading libdl.so.1
Reading libc.so.1
Reading libc_psr.so.1
Reading libcpc.so.1
Reading libpctx.so.1
Reading libnvpair.so.1
Reading libdevinfo.so.1
Reading libproc.so.1
Reading libnsl.so.1
Reading libsec.so.1
Reading libgen.so.1
Reading librtld_db.so.1
Reading libelf.so.1
Reading libctf.so.1
Reading libavl.so.1
Reading libjvm.so
Reading libsocket.so.1
Reading libsched.so.1
Reading libm.so.1
Reading libCrun.so.1
Reading libdoor.so.1
Reading libm.so.2
Reading libscf.so.1
Reading libuutil.so.1
Reading libmd_psr.so.1
Reading libmp.so.2
t@1 (l@1) program terminated by signal SEGV (no mapping at the fault address)
0xff336aac: update_map_segments+0x068c: ld [%l3], %i4
(dbx) where
current thread: t@1
=>[1] update_map_segments(0x13, 0xfe7b7fc0, 0xff353aa0, 0xff369b18, 0x0, 0xfde81eb8), at 0xff336aac
[2] dlopen(0xff031490, 0x800, 0x938, 0xffbfef74, 0x0, 0x102), at 0xff337eec
[3] LoadJavaVM(0xffbfef74, 0xffbfef6c, 0xffbff374, 0x10e0a8, 0x10e4f0, 0x2a7f4), at 0x170c8
[4] main(0x0, 0xffbff7e4, 0x42e, 0x5, 0x14, 0xff2c0140), at 0x116fc
(dbx) quit
dbx: internal warning: td_ta_clear_event() failed -- debugger service failed
dbx: internal warning: td_ta_sync_tracking_enable(0) failed -- debugger service failed
Is this a bug, or I did something wrong?

Thank you for the report! Unfortunately I don't have access to a Niagara-2 system right now.
I tried to run a similar test on Niagara-1 system, but it did not help to reproduce the problem.
Probably it is important to use JDK 1.6.0_07 (I have JDK 1.6.0_06 on my Niagara-1 system),
or the problem is caused by "-h ecdm,10007" option. This type of HWC is not available on
Niagara-1 system, only these 2 are available:
Well-known HW counters available for profiling:
insts[1],9999991 (`Instructions Executed', alias for Instr_cnt; events)
Raw HW counters available for profiling:
Instr_cnt[1],1000003 (events)
I'll try to find a Niagara-2 system and let you know if I see the same problem.
BTW, can you try to run the same test with JDK 1.6.0_06?
Thanks,
Nik

Help! Crashing JVM while doing SELECT statement through JDBC-ODBC bridge

Hi everyone,
Help please. I am working on a project on my own computer using the jdk version 1.5.0_04.
The project involves running a select on a Microsoft Access 2003 database via the JDBC-ODBC bridge. The database is registered in the ODBC database sources, and it works fine in those other projects.
Yet, when I'm running similar code in this project, it crashes the Java Virtual Machine. I get the following in a log file:
# An unexpected error has been detected by HotSpot Virtual Machine:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x7c901010, pid=2308, tid=1364
# Java VM: Java HotSpot(TM) Client VM (1.5.0_04-b05 mixed mode, sharing)
# Problematic frame:
# C [ntdll.dll+0x1010]
--------------- T H R E A D ---------------
Current thread (0x000360f8): JavaThread "main" [_thread_in_native, id=1364]
siginfo: ExceptionCode=0xc0000005, reading address 0x00000018
Registers:
EAX=0x00000004, EBX=0x26bb5250, ECX=0x7ffde000, EDX=0x00000004
ESP=0x0007f8d8, EBP=0x0007f8f0, ESI=0x00000000, EDI=0x02ea1590
EIP=0x7c901010, EFLAGS=0x00010246
Top of Stack: (sp=0x0007f8d8)
0x0007f8d8: 74355a16 00000004 02ea15b4 7432139f
0x0007f8e8: 02ea15b4 02ea1590 0007f900 74322c5d
0x0007f8f8: 02ea15b4 000361b4 0007f914 74325fa0
0x0007f908: 02ea1590 74350000 00390000 0007f930
0x0007f918: 7432740e 02ea1590 0007f950 00000003
0x0007f928: 00aabe20 000361b4 0007f948 6d3e11da
0x0007f938: 02ea1590 0007f950 000360f8 26bb5250
0x0007f948: 0007f980 00ad826f 00000000 0007f99c
Instructions: (pc=0x7c901010)
0x7c901000: 90 90 90 90 90 64 8b 0d 18 00 00 00 8b 54 24 04
0x7c901010: 83 7a 14 00 75 4f f0 ff 42 04 75 19 8b 41 24 89
Stack: [0x00040000,0x00080000), sp=0x0007f8d8, free space=254k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ntdll.dll+0x1010]
C [ODBC32.dll+0x2c5d]
C [ODBC32.dll+0x5fa0]
C [ODBC32.dll+0x740e]
C [JdbcOdbc.dll+0x11da]
j sun.jdbc.odbc.JdbcOdbc.allocStmt(J[B)J+0
j sun.jdbc.odbc.JdbcOdbc.SQLAllocStmt(J)J+47
j sun.jdbc.odbc.JdbcOdbcConnection.createStatement(II)Ljava/sql/Statement;+27
j sun.jdbc.odbc.JdbcOdbcConnection.createStatement()Ljava/sql/Statement;+7
j LUDatabaseWorker.getBoxScoreFromDB(LStatisticalItems/BoxScore;)LStatisticalItems/BoxScore;+215
j NewUSCHOLiveUpdate.processTheBoxScores()V+78
j NewUSCHOLiveUpdate.main([Ljava/lang/String;)V+9
v ~StubRoutines::call_stub
V [jvm.dll+0x82696]
V [jvm.dll+0xd6fd9]
V [jvm.dll+0x82567]
V [jvm.dll+0x895e6]
C [java.exe+0x14c0]
C [java.exe+0x64cd]
C [kernel32.dll+0x16d4f]
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j sun.jdbc.odbc.JdbcOdbc.allocStmt(J[B)J+0
j sun.jdbc.odbc.JdbcOdbc.SQLAllocStmt(J)J+47
j sun.jdbc.odbc.JdbcOdbcConnection.createStatement(II)Ljava/sql/Statement;+27
j sun.jdbc.odbc.JdbcOdbcConnection.createStatement()Ljava/sql/Statement;+7
j LUDatabaseWorker.getBoxScoreFromDB(LStatisticalItems/BoxScore;)LStatisticalItems/BoxScore;+215
j NewUSCHOLiveUpdate.processTheBoxScores()V+78
j NewUSCHOLiveUpdate.main([Ljava/lang/String;)V+9
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x00a6e550 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=2240]
0x00a6d258 JavaThread "CompilerThread0" daemon [_thread_blocked, id=736]
0x00a6c440 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=2252]
0x00a47808 JavaThread "Finalizer" daemon [_thread_blocked, id=3352]
0x00a46328 JavaThread "Reference Handler" daemon [_thread_blocked, id=1560]
=>0x000360f8 JavaThread "main" [_thread_in_native, id=1364]
Other Threads:
0x00a67a68 VMThread [id=2700]
0x00a6f8c8 WatcherThread [id=2480]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 576K, used 404K [0x22b90000, 0x22c30000, 0x23070000)
eden space 512K, 70% used [0x22b90000, 0x22bea738, 0x22c10000)
from space 64K, 66% used [0x22c20000, 0x22c2a990, 0x22c30000)
to space 64K, 0% used [0x22c10000, 0x22c10000, 0x22c20000)
tenured generation total 1408K, used 846K [0x23070000, 0x231d0000, 0x26b90000)
the space 1408K, 60% used [0x23070000, 0x231438e0, 0x23143a00, 0x231d0000)
compacting perm gen total 8192K, used 507K [0x26b90000, 0x27390000, 0x2ab90000)
the space 8192K, 6% used [0x26b90000, 0x26c0ed38, 0x26c0ee00, 0x27390000)
ro space 8192K, 66% used [0x2ab90000, 0x2b0e9dc0, 0x2b0e9e00, 0x2b390000)
rw space 12288K, 46% used [0x2b390000, 0x2b927e98, 0x2b928000, 0x2bf90000)
Dynamic libraries:
0x00400000 - 0x0040c000      C:\jdk1.5.0_04\bin\java.exe
0x7c900000 - 0x7c9b0000      C:\WINDOWS\system32\ntdll.dll
0x7c800000 - 0x7c8f4000      C:\WINDOWS\system32\kernel32.dll
0x77dd0000 - 0x77e6b000      C:\WINDOWS\system32\ADVAPI32.dll
0x77e70000 - 0x77f01000      C:\WINDOWS\system32\RPCRT4.dll
0x77c10000 - 0x77c68000      C:\WINDOWS\system32\MSVCRT.dll
0x6d6b0000 - 0x6d839000      C:\jdk1.5.0_04\jre\bin\client\jvm.dll
0x77d40000 - 0x77dd0000      C:\WINDOWS\system32\USER32.dll
0x77f10000 - 0x77f56000      C:\WINDOWS\system32\GDI32.dll
0x76b40000 - 0x76b6d000      C:\WINDOWS\system32\WINMM.dll
0x629c0000 - 0x629c9000      C:\WINDOWS\system32\LPK.DLL
0x74d90000 - 0x74dfb000      C:\WINDOWS\system32\USP10.dll
0x6d2f0000 - 0x6d2f8000      C:\jdk1.5.0_04\jre\bin\hpi.dll
0x76bf0000 - 0x76bfb000      C:\WINDOWS\system32\PSAPI.DLL
0x6d680000 - 0x6d68c000      C:\jdk1.5.0_04\jre\bin\verify.dll
0x6d370000 - 0x6d38d000      C:\jdk1.5.0_04\jre\bin\java.dll
0x6d6a0000 - 0x6d6af000      C:\jdk1.5.0_04\jre\bin\zip.dll
0x6d3e0000 - 0x6d3ed000      C:\jdk1.5.0_04\jre\bin\JdbcOdbc.dll
0x74320000 - 0x7435d000      C:\WINDOWS\system32\ODBC32.dll
0x5d090000 - 0x5d127000      C:\WINDOWS\system32\COMCTL32.dll
0x7c9c0000 - 0x7d1d5000      C:\WINDOWS\system32\SHELL32.dll
0x77f60000 - 0x77fd6000      C:\WINDOWS\system32\SHLWAPI.dll
0x763b0000 - 0x763f9000      C:\WINDOWS\system32\comdlg32.dll
0x773d0000 - 0x774d2000      C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll
0x20000000 - 0x20017000      C:\WINDOWS\system32\odbcint.dll
0x774e0000 - 0x7761d000      C:\WINDOWS\system32\ole32.dll
0x77120000 - 0x771ac000      C:\WINDOWS\system32\OLEAUT32.dll
0x77fe0000 - 0x77ff1000      C:\WINDOWS\system32\Secur32.dll
0x76fd0000 - 0x7704f000      C:\WINDOWS\system32\CLBCATQ.DLL
0x77050000 - 0x77115000      C:\WINDOWS\system32\COMRes.dll
0x77c00000 - 0x77c08000      C:\WINDOWS\system32\VERSION.dll
0x0f9a0000 - 0x0f9ab000      C:\WINDOWS\system32\VBAJET32.DLL
0x5ad70000 - 0x5ada8000      C:\WINDOWS\system32\uxtheme.dll
VM Arguments:
java_command: NewUSCHOLiveUpdate
Environment Variables:
JAVA_HOME=C:\jdk1.5.0_04
CLASSPATH=C:\jdk1.5.0_04\bin\NewLiveUpdate;C:\jdk1.5.0_04\bin\NewLiveUpdate\StatisticalItems;C:\jdk1.5.0_04\bin\NewLiveUpdate\Exceptions;C:\jdk1.5.0_04\bin\NewLiveUpdate\Helper;
PATH=C:\jdk1.5.0_04\bin;C:\JavaTools\ant\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32\WBEM;;c:\program files\devstudio\sharedide\bin\ide;c:\program files\devstudio\sharedide\bin;c:\program files\devstudio\vc\bin
USERNAME=Kevin Yetman
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 4 Stepping 3, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows XP Build 2600 Service Pack 2
CPU:total 2 family 15, cmov, cx8, fxsr, mmx, sse, sse2, ht
Memory: 4k page, physical 1047020k(627436k free), swap 2518436k(2161900k free)
vm_info: Java HotSpot(TM) Client VM (1.5.0_04-b05) for windows-x86, built on Jun 3 2005 02:10:41 by "java_re" with MS VC++ 6.0
The code that is causing the problem is in the class shown below. It is in the method getBoxScoreFromDB. When it attempts to run the first select statement, it causes the crash that I showed above.
The connection is set up by the calling class. The calling class constructs a LUDatabaseWorker, sets the necessary parameters (dbURL, driver class, username and password), and calls the openDBConnection().
// LUDatabaseWorker.java
import StatisticalItems.*;
import java.sql.*;
import java.util.*;
public class LUDatabaseWorker
   private StatisticalItems.BoxScore m_CurrentBoxScoreInDB;
   private Connection                m_Connection;
   private String                    m_dbURL;
   private String                    m_dbUsername;
   private String                    m_dbPassword;
   private String                    m_dbDriverClass;
   public LUDatabaseWorker()
   public StatisticalItems.BoxScore getCurrentBoxScoreInDB()
   { return m_CurrentBoxScoreInDB;
   public void setDBURL(String dbURL)
   { m_dbURL=new String(dbURL);
   public void setDBUsername(String dbUsername)
   { m_dbUsername=new String(dbUsername);
   public void setDBPassword(String dbPassword)
   { m_dbPassword=new String(dbPassword);
   public void setDBDriverClass(String dbDriverClass)
   { m_dbDriverClass=new String(dbDriverClass);
   public void openDBConnection()
      throws SQLException, ClassNotFoundException
      Class.forName(m_dbDriverClass);
      m_Connection=DriverManager.getConnection(m_dbURL, m_dbUsername, m_dbPassword);
   public void closeDBConnection()
      throws SQLException
      m_Connection.close();
   public Hashtable<String, Integer> getUSCHOCodeToMyTeamIndexMap()
      throws SQLException
      Hashtable<String, Integer> ht=new Hashtable<String, Integer>();
      String sqlQuery="SELECT TeamIndex, TeamCode FROM TeamLiveUpdateUSCHO";
      Statement st=m_Connection.createStatement();
      ResultSet rs=st.executeQuery(sqlQuery);
      while(rs.next())
         String uschoCode=new String(rs.getString(2));
         Integer myTeamIndex=new Integer(rs.getInt(1));
         ht.put(uschoCode, myTeamIndex);
      rs.close();
      st.close();
      return ht;
   public StatisticalItems.BoxScore getBoxScoreFromDB(StatisticalItems.BoxScore luBoxScore)
      throws SQLException
      StatisticalItems.BoxScore boxScoreFromDB=new StatisticalItems.BoxScore();
      // get the basic game info from the live update box score.
      StatisticalItems.Game    luBasicGameData=luBoxScore.getBasicGameData();
      // get the basic game data.
      String sqlQuery="SELECT * FROM Game WHERE (Year=" + luBasicGameData.getYear() + ") AND (Month='";
      if( luBasicGameData.getMonth() < 10 )
      { sqlQuery+="0";
      sqlQuery+=luBasicGameData.getMonth() + "') AND (Day='";
      if( luBasicGameData.getDay() < 10 )
      { sqlQuery+="0";
      sqlQuery+=luBasicGameData.getDay() + "') AND (HomeTeamIndex=" + luBasicGameData.getHomeTeamIndex();
      sqlQuery+=") AND (VisitorTeamIndex=" + luBasicGameData.getVisitorTeamIndex() + ")";
      System.out.println(sqlQuery);
      Statement st=m_Connection.createStatement();
      ResultSet rs=st.executeQuery(sqlQuery);
      if( rs.next() )
         StatisticalItems.Game dbGame=boxScoreFromDB.getBasicGameData();
         dbGame.setGameIndex(rs.getInt("GameIndex"));
         dbGame.setHomeTeamIndex(rs.getInt("HomeTeamIndex"));
         dbGame.setVisitorTeamIndex(rs.getInt("VisitorTeamIndex"));
         dbGame.setHomeTeamGoals(rs.getInt("HomeTeamGoals"));
         dbGame.setVisitorTeamGoals(rs.getInt("VisitorTeamGoals"));
         dbGame.setHomeTeamScoredFirst(rs.getString("HomeTeamScoredFirst"));
         dbGame.setYear(rs.getInt("Year"));
         dbGame.setMonth(rs.getInt("Month"));
         dbGame.setDay(rs.getInt("Day"));
         dbGame.setLeagueGame(rs.getBoolean("LeagueGame"));
         dbGame.setNeutralSiteGame(rs.getBoolean("NeutralSiteGame"));
         dbGame.setForfeitHome(rs.getBoolean("ForfeitHome"));
         dbGame.setForfeitVisitor(rs.getBoolean("ForfeitVisitor"));
         dbGame.setPlayoffGame(rs.getBoolean("PlayoffGame"));
         boxScoreFromDB.setBasicGameData(dbGame);
      StatisticalItems.Game dbGame=boxScoreFromDB.getBasicGameData();
      // get the home team goals per period.
      sqlQuery="SELECT * FROM GameDetailGoalsPerPeriod WHERE (GameIndex=" + dbGame.getGameIndex() + ") AND ";
      sqlQuery+="(TeamIndex=" + dbGame.getHomeTeamIndex() + ")";
      rs=st.executeQuery(sqlQuery);
      if( rs.next() )
         StatisticalItems.GameDetailGoalsPerPeriod dbHomeGPP=boxScoreFromDB.getHomeTeamGoalsPerPeriod();
         dbHomeGPP.setGameDetailGoalsPerPeriodIndex(rs.getInt("GameDetailGoalsPerPeriodIndex"));
         dbHomeGPP.setGameIndex(rs.getInt("GameIndex"));
         dbHomeGPP.setTeamIndex(rs.getInt("TeamIndex"));
         dbHomeGPP.setPeriod1(new Integer(rs.getInt("GoalsFirstPeriod")));
         dbHomeGPP.setPeriod2(new Integer(rs.getInt("GoalsSecondPeriod")));
         dbHomeGPP.setPeriod3(new Integer(rs.getInt("GoalsThidPeriod")));
         dbHomeGPP.setOvertime(new Integer(rs.getInt("GoalsOvertime")));
         dbHomeGPP.setEmptyNetGoals(rs.getInt("EmptyNetGoals"));
         dbHomeGPP.setFoundInDatabase(true);
         boxScoreFromDB.setHomeTeamGoalsPerPeriod(dbHomeGPP);
      // get the visitor team goals per period.
      sqlQuery="SELECT * FROM GameDetailGoalsPerPeriod WHERE (GameIndex=" + dbGame.getGameIndex() + ") AND ";
      sqlQuery+="(TeamIndex=" + dbGame.getVisitorTeamIndex() + ")";
      rs=st.executeQuery(sqlQuery);
      if( rs.next() )
         StatisticalItems.GameDetailGoalsPerPeriod dbVisitorGPP=boxScoreFromDB.getVisitorTeamGoalsPerPeriod();
         dbVisitorGPP.setGameDetailGoalsPerPeriodIndex(rs.getInt("GameDetailGoalsPerPeriodIndex"));
         dbVisitorGPP.setGameIndex(rs.getInt("GameIndex"));
         dbVisitorGPP.setTeamIndex(rs.getInt("TeamIndex"));
         dbVisitorGPP.setPeriod1(new Integer(rs.getInt("GoalsFirstPeriod")));
         dbVisitorGPP.setPeriod2(new Integer(rs.getInt("GoalsSecondPeriod")));
         dbVisitorGPP.setPeriod3(new Integer(rs.getInt("GoalsThidPeriod")));
         dbVisitorGPP.setOvertime(new Integer(rs.getInt("GoalsOvertime")));
         dbVisitorGPP.setEmptyNetGoals(rs.getInt("EmptyNetGoals"));
         dbVisitorGPP.setFoundInDatabase(true);
         boxScoreFromDB.setVisitorTeamGoalsPerPeriod(dbVisitorGPP);
      // get the home team shots per period.
      sqlQuery="SELECT * FROM GameDetailShotsPerPeriod WHERE (GameIndex=" + dbGame.getGameIndex() + ") AND ";
      sqlQuery+="(TeamIndex=" + dbGame.getHomeTeamIndex() + ")";
      rs=st.executeQuery(sqlQuery);
      if( rs.next() )
         StatisticalItems.GameDetailShotsPerPeriod dbHomeSPP=boxScoreFromDB.getHomeTeamShotsPerPeriod();
         dbHomeSPP.setGameDetailShotsPerPeriodIndex(rs.getInt("GameDetailShotsPerPeriodIndex"));
         dbHomeSPP.setGameIndex(rs.getInt("GameIndex"));
         dbHomeSPP.setTeamIndex(rs.getInt("TeamIndex"));
         dbHomeSPP.setPeriod1(new Integer(rs.getInt("ShotsFirstPeriod")));
         dbHomeSPP.setPeriod2(new Integer(rs.getInt("ShotsSecondPeriod")));
         dbHomeSPP.setPeriod3(new Integer(rs.getInt("ShotsThidPeriod")));
         dbHomeSPP.setOvertime(new Integer(rs.getInt("ShotsOvertime")));
         dbHomeSPP.setFoundInDatabase(true);
         boxScoreFromDB.setHomeTeamShotsPerPeriod(dbHomeSPP);
      // get the visitor team shots per period.
      sqlQuery="SELECT * FROM GameDetailShotsPerPeriod WHERE (GameIndex=" + dbGame.getGameIndex() + ") AND ";
      sqlQuery+="(TeamIndex=" + dbGame.getVisitorTeamIndex() + ")";
      rs=st.executeQuery(sqlQuery);
      if( rs.next() )
         StatisticalItems.GameDetailShotsPerPeriod dbVisitorSPP=boxScoreFromDB.getVisitorTeamShotsPerPeriod();
         dbVisitorSPP.setGameDetailShotsPerPeriodIndex(rs.getInt("GameDetailShotsPerPeriodIndex"));
         dbVisitorSPP.setGameIndex(rs.getInt("GameIndex"));
         dbVisitorSPP.setTeamIndex(rs.getInt("TeamIndex"));
         dbVisitorSPP.setPeriod1(new Integer(rs.getInt("ShotsFirstPeriod")));
         dbVisitorSPP.setPeriod2(new Integer(rs.getInt("ShotsSecondPeriod")));
         dbVisitorSPP.setPeriod3(new Integer(rs.getInt("ShotsThidPeriod")));
         dbVisitorSPP.setOvertime(new Integer(rs.getInt("ShotsOvertime")));
         dbVisitorSPP.setFoundInDatabase(true);
         boxScoreFromDB.setVisitorTeamShotsPerPeriod(dbVisitorSPP);
      // get the home team special teams.
      sqlQuery="SELECT * FROM GameDetailSpecialTeams WHERE (GameIndex=" + dbGame.getGameIndex() + ") AND ";
      sqlQuery+="(TeamIndex=" + dbGame.getHomeTeamIndex() + ")";
      rs=st.executeQuery(sqlQuery);
      if( rs.next() )
         StatisticalItems.GameDetailSpecialTeams dbHomeST=boxScoreFromDB.getHomeTeamSpecialTeams();
         dbHomeST.setGameDetailSpecialTeamsIndex(rs.getInt("GameDetailSpecialTeamsIndex"));
         dbHomeST.setGameIndex(rs.getInt("GameIndex"));
         dbHomeST.setTeamIndex(rs.getInt("TeamIndex"));
         dbHomeST.setPowerplayGoals(rs.getInt("PowerPlayGoals"));
         dbHomeST.setShorthandedGoals(rs.getInt("ShortHandedGoals"));
         dbHomeST.setPowerplayOps(rs.getInt("PowerPlayOps"));
         dbHomeST.setShorthandedOps(rs.getInt("ShortHandedOps"));
         dbHomeST.setPenalties(rs.getInt("Penalties"));
         dbHomeST.setPenaltyMinutes(rs.getInt("PenaltyMinutes"));
         dbHomeST.setFoundInDatabase(true);
         boxScoreFromDB.setHomeTeamSpecialTeams(dbHomeST);
      // get the home team special teams.
      sqlQuery="SELECT * FROM GameDetailSpecialTeams WHERE (GameIndex=" + dbGame.getGameIndex() + ") AND ";
      sqlQuery+="(TeamIndex=" + dbGame.getVisitorTeamIndex() + ")";
      rs=st.executeQuery(sqlQuery);
      if( rs.next() )
         StatisticalItems.GameDetailSpecialTeams dbVisitorST=boxScoreFromDB.getVisitorTeamSpecialTeams();
         dbVisitorST.setGameDetailSpecialTeamsIndex(rs.getInt("GameDetailSpecialTeamsIndex"));
         dbVisitorST.setGameIndex(rs.getInt("GameIndex"));
         dbVisitorST.setTeamIndex(rs.getInt("TeamIndex"));
         dbVisitorST.setPowerplayGoals(rs.getInt("PowerPlayGoals"));
         dbVisitorST.setShorthandedGoals(rs.getInt("ShortHandedGoals"));
         dbVisitorST.setPowerplayOps(rs.getInt("PowerPlayOps"));
         dbVisitorST.setShorthandedOps(rs.getInt("ShortHandedOps"));
         dbVisitorST.setPenalties(rs.getInt("Penalties"));
         dbVisitorST.setPenaltyMinutes(rs.getInt("PenaltyMinutes"));
         dbVisitorST.setFoundInDatabase(true);
         boxScoreFromDB.setVisitorTeamSpecialTeams(dbVisitorST);
      rs.close();
      st.close();
      return boxScoreFromDB;
   public void updateBoxScoreInDB(StatisticalItems.BoxScore dbBoxScore,
                                  StatisticalItems.BoxScore luBoxScore,
                                  LUBoxScoreComparator       bsc)
      throws SQLException
      if( bsc.getGameChanged() )
         updateGameInDB(dbBoxScore, luBoxScore);
      if( bsc.getHomeGoalsPerPeriodChanged() )
         updateHomeGoalsPerPeriod(dbBoxScore, luBoxScore);
      if( bsc.getVisitorGoalsPerPeriodChanged() )
         updateVisitorGoalsPerPeriod(dbBoxScore, luBoxScore);
      if( bsc.getHomeShotsPerPeriodChanged() )
         updateHomeShotsPerPeriod(dbBoxScore, luBoxScore);
      if( bsc.getVisitorShotsPerPeriodChanged() )
         updateVisitorShotsPerPeriod(dbBoxScore, luBoxScore);
      if( bsc.getHomeSpecialTeamsChanged() )
         updateHomeSpecialTeams(dbBoxScore, luBoxScore);
      if( bsc.getVisitorSpecialTeamsChanged() )
         updateVisitorSpecialTeams(dbBoxScore, luBoxScore);
   protected void updateGameInDB(StatisticalItems.BoxScore dbBoxScore,
                                 StatisticalItems.BoxScore luBoxScore)
      throws SQLException
      // the only fields that NEED to be updated are HomeTeamGoals, VisitorTeamGoals, HomeTeamScoredFirst,
      // and LeagueGame. You can't determine from the LU box Score:
      // Forfeits, NeutralSite, or Playoff.
      // the GameIndex, Both team indexes, and the game date will NEVER change from the database.
      Statement st=m_Connection.createStatement();
      String sqlStmt="UPDATE Game SET ";
      sqlStmt+="HomeTeamGoals=" + luBoxScore.getBasicGameData().getHomeTeamGoals() + ", ";
      sqlStmt+="VisitorTeamGoals=" + luBoxScore.getBasicGameData().getVisitorTeamGoals() + ", ";
      sqlStmt+="HomeTeamScoredFirst='" + luBoxScore.getBasicGameData().getHomeTeamScoredFirst() + "', ";
      sqlStmt+="LeagueGame=" + luBoxScore.getBasicGameData().getLeagueGame() + " ";
      sqlStmt+="WHERE GameIndex=" + dbBoxScore.getBasicGameData().getGameIndex();
      st.executeUpdate(sqlStmt);
      st.close();
   protected void updateHomeGoalsPerPeriod(StatisticalItems.BoxScore dbBoxScore,
                                           StatisticalItems.BoxScore luBoxScore)
      throws SQLException
      Statement st=m_Connection.createStatement();
      String sqlStmt="";
      if( dbBoxScore.getHomeTeamGoalsPerPeriod().getFoundInDatabase() )
         sqlStmt="UPDATE GameDetailGoalsPerPeriod SET ";
         sqlStmt+="GameIndex=" + dbBoxScore.getHomeTeamGoalsPerPeriod().getGameIndex() + ", ";
         sqlStmt+="TeamIndex=" + luBoxScore.getHomeTeamGoalsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+="GoalsFirstPeriod=" + luBoxScore.getHomeTeamGoalsPerPeriod().getPeriod1() + ", ";
         sqlStmt+="GoalsSecondPeriod=" + luBoxScore.getHomeTeamGoalsPerPeriod().getPeriod2() + ", ";
         sqlStmt+="GoalsThirdPeriod=" + luBoxScore.getHomeTeamGoalsPerPeriod().getPeriod3() + ", ";
         sqlStmt+="GoalsOvertime=" + luBoxScore.getHomeTeamGoalsPerPeriod().getOvertime() + ", ";
         sqlStmt+="EmptyNetGoals=" + luBoxScore.getHomeTeamGoalsPerPeriod().getEmptyNetGoals() + " ";
         sqlStmt+="WHERE GameIndex=" + dbBoxScore.getHomeTeamGoalsPerPeriod().getGameIndex() + " AND ";
         sqlStmt+="TeamIndex=" + luBoxScore.getHomeTeamGoalsPerPeriod().getTeamIndex();
      else
         sqlStmt="INSERT INTO GameDetailGoalsPerPeriod ";
         sqlStmt+="(GameIndex, TeamIndex, GoalsFirstPeriod, GoalsSecondPeriod, GoalsThirdPeriod, ";
         sqlStmt+="GoalsOvertime, EmptyNetGoals) VALUES(";
         sqlStmt+=dbBoxScore.getBasicGameData().getGameIndex() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamGoalsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamGoalsPerPeriod().getPeriod1() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamGoalsPerPeriod().getPeriod2() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamGoalsPerPeriod().getPeriod3() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamGoalsPerPeriod().getOvertime() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamGoalsPerPeriod().getEmptyNetGoals() + ")";
      st.executeUpdate(sqlStmt);
      st.close();
   protected void updateVisitorGoalsPerPeriod(StatisticalItems.BoxScore dbBoxScore,
                                              StatisticalItems.BoxScore luBoxScore)
      throws SQLException
      Statement st=m_Connection.createStatement();
      String sqlStmt="";
      if( dbBoxScore.getVisitorTeamGoalsPerPeriod().getFoundInDatabase() )
         sqlStmt="UPDATE GameDetailGoalsPerPeriod SET ";
         sqlStmt+="GameIndex=" + dbBoxScore.getVisitorTeamGoalsPerPeriod().getGameIndex() + ", ";
         sqlStmt+="TeamIndex=" + luBoxScore.getVisitorTeamGoalsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+="GoalsFirstPeriod=" + luBoxScore.getVisitorTeamGoalsPerPeriod().getPeriod1() + ", ";
         sqlStmt+="GoalsSecondPeriod=" + luBoxScore.getVisitorTeamGoalsPerPeriod().getPeriod2() + ", ";
         sqlStmt+="GoalsThirdPeriod=" + luBoxScore.getVisitorTeamGoalsPerPeriod().getPeriod3() + ", ";
         sqlStmt+="GoalsOvertime=" + luBoxScore.getVisitorTeamGoalsPerPeriod().getOvertime() + ", ";
         sqlStmt+="EmptyNetGoals=" + luBoxScore.getVisitorTeamGoalsPerPeriod().getEmptyNetGoals() + " ";
         sqlStmt+="WHERE GameIndex=" + dbBoxScore.getVisitorTeamGoalsPerPeriod().getGameIndex() + " AND ";
         sqlStmt+="TeamIndex=" + luBoxScore.getVisitorTeamGoalsPerPeriod().getTeamIndex();
      else
         sqlStmt="INSERT INTO GameDetailGoalsPerPeriod ";
         sqlStmt+="(GameIndex, TeamIndex, GoalsFirstPeriod, GoalsSecondPeriod, GoalsThirdPeriod, ";
         sqlStmt+="GoalsOvertime, EmptyNetGoals) VALUES(";
         sqlStmt+=dbBoxScore.getBasicGameData().getGameIndex() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamGoalsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamGoalsPerPeriod().getPeriod1() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamGoalsPerPeriod().getPeriod2() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamGoalsPerPeriod().getPeriod3() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamGoalsPerPeriod().getOvertime() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamGoalsPerPeriod().getEmptyNetGoals() + ")";
      st.executeUpdate(sqlStmt);
      st.close();
   protected void updateHomeShotsPerPeriod(StatisticalItems.BoxScore dbBoxScore,
                                           StatisticalItems.BoxScore luBoxScore)
      throws SQLException
      Statement st=m_Connection.createStatement();
      String sqlStmt="";
      if( dbBoxScore.getHomeTeamShotsPerPeriod().getFoundInDatabase() )
         sqlStmt="UPDATE GameDetailShotsPerPeriod SET ";
         sqlStmt+="GameIndex=" + dbBoxScore.getHomeTeamShotsPerPeriod().getGameIndex() + ", ";
         sqlStmt+="TeamIndex=" + luBoxScore.getHomeTeamShotsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+="ShotsFirstPeriod=" + luBoxScore.getHomeTeamShotsPerPeriod().getPeriod1() + ", ";
         sqlStmt+="ShotsSecondPeriod=" + luBoxScore.getHomeTeamShotsPerPeriod().getPeriod2() + ", ";
         sqlStmt+="ShotsThirdPeriod=" + luBoxScore.getHomeTeamShotsPerPeriod().getPeriod3() + ", ";
         sqlStmt+="ShotsOvertime=" + luBoxScore.getHomeTeamShotsPerPeriod().getOvertime() + " ";
         sqlStmt+="WHERE GameIndex=" + dbBoxScore.getHomeTeamShotsPerPeriod().getGameIndex() + " AND ";
         sqlStmt+="TeamIndex=" + luBoxScore.getHomeTeamShotsPerPeriod().getTeamIndex();
      else
         sqlStmt="INSERT INTO GameDetailShotsPerPeriod ";
         sqlStmt+="(GameIndex, TeamIndex, ShotsFirstPeriod, ShotsSecondPeriod, ShotsThirdPeriod, ";
         sqlStmt+="ShotsOvertime) VALUES(";
         sqlStmt+=dbBoxScore.getBasicGameData().getGameIndex() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamShotsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamShotsPerPeriod().getPeriod1() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamShotsPerPeriod().getPeriod2() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamShotsPerPeriod().getPeriod3() + ", ";
         sqlStmt+=luBoxScore.getHomeTeamShotsPerPeriod().getOvertime() + ")";
      st.executeUpdate(sqlStmt);
      st.close();
   protected void updateVisitorShotsPerPeriod(StatisticalItems.BoxScore dbBoxScore,
                                              StatisticalItems.BoxScore luBoxScore)
      throws SQLException
      Statement st=m_Connection.createStatement();
      String sqlStmt="";
      if( dbBoxScore.getVisitorTeamShotsPerPeriod().getFoundInDatabase() )
         sqlStmt="UPDATE GameDetailShotsPerPeriod SET ";
         sqlStmt+="GameIndex=" + dbBoxScore.getVisitorTeamShotsPerPeriod().getGameIndex() + ", ";
         sqlStmt+="TeamIndex=" + luBoxScore.getVisitorTeamShotsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+="ShotsFirstPeriod=" + luBoxScore.getVisitorTeamShotsPerPeriod().getPeriod1() + ", ";
         sqlStmt+="ShotsSecondPeriod=" + luBoxScore.getVisitorTeamShotsPerPeriod().getPeriod2() + ", ";
         sqlStmt+="ShotsThirdPeriod=" + luBoxScore.getVisitorTeamShotsPerPeriod().getPeriod3() + ", ";
         sqlStmt+="ShotsOvertime=" + luBoxScore.getVisitorTeamShotsPerPeriod().getOvertime() + " ";
         sqlStmt+="WHERE GameIndex=" + dbBoxScore.getVisitorTeamShotsPerPeriod().getGameIndex() + " AND ";
         sqlStmt+="TeamIndex=" + luBoxScore.getVisitorTeamShotsPerPeriod().getTeamIndex();
      else
         sqlStmt="INSERT INTO GameDetailShotsPerPeriod ";
         sqlStmt+="(GameIndex, TeamIndex, ShotsFirstPeriod, ShotsSecondPeriod, ShotsThirdPeriod, ";
         sqlStmt+="ShotsOvertime) VALUES(";
         sqlStmt+=dbBoxScore.getBasicGameData().getGameIndex() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamShotsPerPeriod().getTeamIndex() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamShotsPerPeriod().getPeriod1() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamShotsPerPeriod().getPeriod2() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamShotsPerPeriod().getPeriod3() + ", ";
         sqlStmt+=luBoxScore.getVisitorTeamShotsPerPeriod().getOvertime() + ")";
      st.executeUpdate(sqlStmt);
      st.close();
   protected void updateHomeSpecialTeams(StatisticalItems.BoxScore dbBoxScore,
                                         StatisticalItems.BoxScore luBoxScore)
      throws SQLException
      Statement st=m_Connection.createStatement();
      String sqlStmt="";
      if( dbBoxScore.getHomeTeamSpecialTeams().getFoundInDatabase() )
         sqlStmt="UPDATE GameDetailSpecialTeams SET ";
         sqlStmt+="GameIndex=" + dbBoxScore.getHomeTeamSpecialTeams().getGameIndex() + ", ";
         sqlStmt+="TeamIndex=" + luBoxScore.getHomeTeamSpecialTeams().getTeamIndex() + ", ";
         sqlStmt+="PowerplayGoals=" + luBoxScore.getHomeTeamSpecialTeams().getPowerplayGoals() + ", ";
         sqlStmt+="PowerplayOps=" + luBoxScore.getHomeTeamSpecialTeams().getPowerplayOps() + ", ";
         sqlStmt+="ShorthandedGoals=" + luBoxScore.getHomeTeamSpecialTeams().getShorthandedGoals() + ", ";
         sqlStmt+="ShorthandedOps=" + luBoxScore.getHomeTeamSpecialTeams().getShorthande

its because you use hungarian notation - that was the hollywood squares answer.
It looks like a bug in either the ntdll or the JdbcOdbc dll, so I'd see if you can't isolate the problem (like using a smaller bit of code) and file a bug report. Find out exacty what your sql statement is which causes this to crash - hint : line 215

Servlet Crashing JVM!!

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