First thing I did was change WWW root in Configure Preferences to D:\ - which is where the class files for the applet are, then set that to another folder this morning. I will build and run a Java Server from JKD-5 to see if that has any effect.
It was a very simple applet, overriding one or two calls and calling public java.net.URL url_ = super.getDocumentBase(); in the variable initializations, which blew out to an exception.
At that point, and from then on - TextPad would not, could not save the file or something: (source).txt appeared in the fileSaveAs dialog box.
I launched a process viewer, there were no unexpected instances. 8)
Went down to a cold restart - problem persisted; machine responding properly, no bubbles in the screen refresh (**Always a good test under winnies low-carb kernel**), thought about running a registry monitor to look for who/where, but such efforts waste time on no-productivity.
Suggestions where to look ? Here is stack trace and code.
Code: Select all
java.lang.NullPointerException:
at java.applet.Applet.getDocumentBase(Applet.java:90)
at WelcomeApplet.<init>(WelcomeApplet.java:20)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:239)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:532)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:468)
at sun.applet.AppletPanel.run(Compiled Code)
at java.lang.Thread.run(Thread.java:479)
Exception occurred during event dispatching:
java.lang.NullPointerException
at sun.applet.AppletViewer.appletInfo(Compiled Code)
at sun.applet.AppletViewer.processUserAction(AppletViewer.java:743)
at sun.applet.AppletViewer$UserActionListener.actionPerformed(AppletViewer.java:137)
at java.awt.MenuItem.processActionEvent(MenuItem.java:500)
at java.awt.MenuItem.processEvent(MenuItem.java:464)
at java.awt.MenuComponent.dispatchEventImpl(MenuComponent.java:269)
at java.awt.MenuComponent.dispatchEvent(MenuComponent.java:259)
at java.awt.EventQueue.dispatchEvent(Compiled Code)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:68)Process is hung, applet window shows through in the client area.
Process terminated sucessfully using X button on cli window.
File save as dialog box brings up modal "Error Accessing 'D:\Welcome Applet.java'"
Click OK brings up 2nd dialog "Failed to create backup file for D:\Welcome Applet.java"
Click OK brings disk activity.
Configure shows file is not read-only, same in Windows Explorer - 4.72.3110.1.
Code: Select all
public class WelcomeApplet extends java.applet.Applet
{
public java.net.URL url_ = super.getDocumentBase();
public java.lang.String descriptor_ = url_.toString();
public java.lang.String GREETING = null;
public java.lang.String NEIGHBOUR = null;
public java.lang.String MARMALADE = null;
public void init()
{
java.applet.AppletContext ac_ = super.getAppletContext();
this.GREETING = super.getParameter("greeting");
this.NEIGHBOUR = super.getParameter("neighbour");
this.MARMALADE = super.getParameter("marmalade");
return;
}
public void start()
{
super.showStatus(descriptor_);
return;
}
...
}D:\>java -version
java version "1.4.1_07"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_07-b02)
Java HotSpot(TM) Client VM (build 1.4.1_07-b02, mixed mode)
Sony CPD 100ES on ATI RADEON 9600 SE
msvcp50.dll - corrupted per M$ tool System File Checker
Oh, yes, I tried it in a try-catch - same behaviour.
I have modules loaded and heapwalks for those modules.
e.g.
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KERNEL32.txt - 1 76210000 126976 C:\WINDOWS\SYSTEM\WLDAP32.DLL
MSGSRV32.txt - et cetera
TASKMON.txt
TEXTPAD.txt
MPREXE.txt
WMIEXE.txtMicrosoft(R) Windows (R) 2000 Operating System over Win98 consumer kernel.
Also, there are *many* games and miscellaneous utility software from the previous user, most of which I attempted to remove.