I am still trying to track down a solution to make my program which reads multiple spreadsheets in separate threads reliable. When I run my program at the latest "final" level (jakarta-poi-1.5.1-final-20020615.jar) every so often I get a crash consistent with corruption of data between the time it is read in from the spreadsheet and the time it is interpreted. The crashes themselves are random and do not occur every time, just as you would expect if there is some unexpected interaction between parallel threads. Since the last "final" level is so old it was recommended that I try it at the latest "dev" level (jakarta-poi-1.8.0-dev-20020919.jar), however at that level someone had inadvertently left in a print to System.out. Hey these things happen. I was told that problem would be fixed in the next "nightly" release (jakarta-poi-1.9.0-dev-20030112.jar). I have now tried that, and the next night's as well, and I get the following:
Exception occurred during event dispatching: java.lang.NoClassDefFoundError: org/apache/poi/hssf/eventmodel/HSSFListener at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:486) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at Census.CensusFrame.<init>(CensusFrame.java:175) at Census.CensusUtility$OpenAction.actionPerformed(CensusUtility.java:355) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1450) at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1504) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:378) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:250) at javax.swing.AbstractButton.doClick(AbstractButton.java:279) at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(BasicMenuItemUI.java:886) at java.awt.Component.processMouseEvent(Component.java:3715) at java.awt.Component.processEvent(Component.java:3544) at java.awt.Container.processEvent(Container.java:1164) at java.awt.Component.dispatchEventImpl(Component.java:2593) at java.awt.Container.dispatchEventImpl(Container.java:1213) at java.awt.Component.dispatchEvent(Component.java:2497) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2451) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2216) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2125) at java.awt.Container.dispatchEventImpl(Container.java:1200) at java.awt.Window.dispatchEventImpl(Window.java:914) at java.awt.Component.dispatchEvent(Component.java:2497) at java.awt.EventQueue.dispatchEvent(EventQueue.java:339) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:131) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:98) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:85) Jim Cobban [EMAIL PROTECTED] 34 Palomino Dr. Kanata, ON, CANADA K2M 1M1 +1-613-592-9438
