Tuesday, February 23, 2010

Java still not supported (officially!) on Windows Vista

It may be a world known fact but I haven't known it yet that Java officially doesn't (officially) support Windows Vista yet

We have been working on a thick client implementation in Java Swing and RMI and while unit testing we figured out a JFileChooser cannot be invoked. It throws following error. This happened with JRE version 1.5.0_08-b03 and seems to have been correctted in JRE build version 1.5.0_18-b02

Further details are available on Sun's / Oracle's bug site: http://bugs.sun.com/view_bug.do?bug_id=6449933

An error stack trace is given below which might help you identify this issue precisely...
Hope this helps ...

******************* LAUNCHING APPLICATION **************
java version "1.5.0_08"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_08-b03)
Java HotSpot(TM) Client VM (build 1.5.0_08-b03, mixed mode, sharing)
Starting Application...
16:42:45,076 SYSTEM - Application Started on port 52305...
7038 [Thread-2] INFO fasttrack - LOGCAT VERSION
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 3184
at sun.awt.shell.Win32ShellFolder2.getFileChooserIcon(Win32ShellFolder2.java:748)
at sun.awt.shell.Win32ShellFolderManager2.get(Win32ShellFolderManager2.java:248)
at sun.awt.shell.ShellFolder.get(ShellFolder.java:221)
at com.sun.java.swing.plaf.windows.WindowsLookAndFeel$LazyWindowsIcon.createValue(WindowsLookAndFeel.java:1865)
at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:185)
at javax.swing.UIDefaults.get(UIDefaults.java:130)
at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
at javax.swing.UIDefaults.getIcon(UIDefaults.java:411)
at javax.swing.UIManager.getIcon(UIManager.java:613)
at javax.swing.plaf.basic.BasicFileChooserUI.installIcons(BasicFileChooserUI.java:237)
at javax.swing.plaf.basic.BasicFileChooserUI.installDefaults(BasicFileChooserUI.java:219)
at javax.swing.plaf.basic.BasicFileChooserUI.installUI(BasicFileChooserUI.java:135)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI(WindowsFileChooserUI.java:126)
at javax.swing.JComponent.setUI(JComponent.java:652)
at javax.swing.JFileChooser.updateUI(JFileChooser.java:1755)
at javax.swing.JFileChooser.setup(JFileChooser.java:366)
at javax.swing.JFileChooser.(JFileChooser.java:341)
at javax.swing.JFileChooser.(JFileChooser.java:300)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
at java.awt.Component.processMouseEvent(Component.java:5488)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3126)
at java.awt.Component.processEvent(Component.java:5253)
at java.awt.Container.processEvent(Container.java:1966)
at java.awt.Component.dispatchEventImpl(Component.java:3955)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
at java.awt.Container.dispatchEventImpl(Container.java:2010)
at java.awt.Window.dispatchEventImpl(Window.java:1778)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

Sunday, February 21, 2010

Resetting password for System user in Oracle Express Edition

If you are running Oracle XE for your own development purpose and by any chance forgotten the password of the "system" user here are the simple steps to resolve the problem

Linux:
export ORACLE_SID=XE
export ORACLE_HOME=
sqlplus / as sysdba
SQL> alter user system identified by ;

Windows:
set ORACLE_SID=XE
set ORACLE_HOME= (E.g. This will look something like - "D:\oraclexe\app\oracle\product\10.2.0\server")
sqlplus / as sysdba
SQL> alter user system identified by ;

Hope this helps...