WLDF Extension in 10.3 Applet Failing

Question

Tab comes up in AdminServer screen after adding diagnostics-console-extension.jar file to $DOMAIN_DIR/console-ext
Adminserver service restarted...
Yet when I click on tab i get the following in Java Console.
Java Plug-in 1.6.0_13
Using JRE version 1.6.0_13 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\dj
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
Additional downloads deleted for brevity.
Downloaded
console/wldf/lib/wldfclient.jar
network: Downloading resource: https://ipaddress:17001/console/wldf/lib/wldfclient-L10N.jar
     Content-Length: 3,534
     Content-Encoding: null
network: Cache entry not found [url: https://ipaddress:17001/console/com/bea/diagnostics/dashboard/ChartPanelApplet.class, version: null]
network: Connecting https://1paddress6:17001/console/com/bea/diagnostics/dashboard/ChartPanelApplet.class with proxy=DIRECT
network: Server https://ipaddress:17001/console/com/bea/diagnostics/dashboard/ChartPanelApplet.class requesting to set-cookie with "ADMINCONSOLESESSION=somestring; path=/"
network: Cache entry not found [url: https://ipaddress6:17001/console/login/LoginForm.jsp, version: null]
network: Connecting https:/ipaddress:17001/console/login/LoginForm.jsp with proxy=DIRECT
network: Connecting http://ipaddress:17001/ with proxy=DIRECT
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Checking if certificate is in Deployment denied certificate store
security: Checking if certificate is in Deployment session certificate store
security: Checking if SSL certificate is in Deployment permanent certificate store
network: Server https://ipaddress:17001/console/login/LoginForm.jsp requesting to set-cookie with "ADMINCONSOLESESSION=somestring; path=/"
basic: error: Incompatible magic value 218762506 in class file com/bea/diagnostics/dashboard/ChartPanelApplet.
java.lang.ClassFormatError: Incompatible magic value 218762506 in class file com/bea/diagnostics/dashboard/ChartPanelApplet
     at java.lang.ClassLoader.defineClass1(Native Method)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Exception: java.lang.ClassFormatError: Incompatible magic value 218762506 in class file com/bea/diagnostics/dashboard/ChartPanelApplet
I find this class in the wldfclient.jar @
$DOMAIN_DIR//servers/AdminServer/tmp/_WL_internal/consoleapp/jxhze9/console-ext/diagnostics-console-extension/wldf/lib
Does that jar file need to be placed somewhere else????
TIA

Answer 1

A very nice way to accomplish this: From within the extension project (in JDev), set the project properties for remote debugging (Run/Debug panel of the project settings dialog, Edit the Default configuration). From a command line execute jdev.exe -ojvm -debug. The dialog that comes up inside of JDev will let you choose localhost. The first instance of JDev will be debugging the one that's about to open.