"javascript:void(0)" error on hover

Why I am posting:

I get a “javascript:void(0)” error on hover over my short-coded text, and cannot trace the error. I run the current Linux-Ubuntu/FFox/IcedTea setup and no other java-enabled program on my site throws this error. Same error on Chrome, too.

Here is the Java stack trace. Maybe you can see something:

IcedTea-Web Plugin version: 1.5.3 (1.5.3-0ubuntu0.14.04.1)
Sat May 14 19:12:28 CDT 2016
net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize applet. For more information click “more information button”.
at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:739)
at net.sourceforge.jnlp.Launcher.getApplet(Launcher.java:668)
at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:901)
Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Unknown Main-Class. Could not determine the main class for this application.
at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:681)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.<init>(JNLPClassLoader.java:277)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.createInstance(JNLPClassLoader.java:351)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:418)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:394)
at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:704)
… 2 more
Caused by: java.lang.ClassNotFoundException: Could not find class JavaDetection
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClassNonRecursive(JNLPClassLoader.java:2484)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.findClass(JNLPClassLoader.java:1654)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClass(JNLPClassLoader.java:2497)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:678)
… 7 more
Caused by: java.security.PrivilegedActionException: java.lang.ClassNotFoundException: JavaDetection
at java.security.AccessController.doPrivileged(Native Method)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClassNonRecursive(JNLPClassLoader.java:2474)
… 10 more
Caused by: java.lang.ClassNotFoundException: JavaDetection
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.access$2001(JNLPClassLoader.java:2446)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader$1.run(JNLPClassLoader.java:2477)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader$1.run(JNLPClassLoader.java:2475)
… 12 more

Chain:
1) at Sat May 14 19:12:25 CDT 2016
net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Unknown Main-Class. Could not determine the main class for this application.
at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:681)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.<init>(JNLPClassLoader.java:277)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.createInstance(JNLPClassLoader.java:351)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:418)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:394)
at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:704)
at net.sourceforge.jnlp.Launcher.getApplet(Launcher.java:668)
at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:901)
Caused by: java.lang.ClassNotFoundException: Could not find class JavaDetection
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClassNonRecursive(JNLPClassLoader.java:2484)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.findClass(JNLPClassLoader.java:1654)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClass(JNLPClassLoader.java:2497)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:678)
… 7 more
Caused by: java.security.PrivilegedActionException: java.lang.ClassNotFoundException: JavaDetection
at java.security.AccessController.doPrivileged(Native Method)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClassNonRecursive(JNLPClassLoader.java:2474)
… 10 more
Caused by: java.lang.ClassNotFoundException: JavaDetection
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.access$2001(JNLPClassLoader.java:2446)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader$1.run(JNLPClassLoader.java:2477)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader$1.run(JNLPClassLoader.java:2475)
… 12 more
2) at Sat May 14 19:12:25 CDT 2016
net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize applet. For more information click “more information button”.
at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:739)
at net.sourceforge.jnlp.Launcher.getApplet(Launcher.java:668)
at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:901)
Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Unknown Main-Class. Could not determine the main class for this application.
at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:681)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.<init>(JNLPClassLoader.java:277)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.createInstance(JNLPClassLoader.java:351)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:418)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:394)
at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:704)
… 2 more
Caused by: java.lang.ClassNotFoundException: Could not find class JavaDetection
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClassNonRecursive(JNLPClassLoader.java:2484)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.findClass(JNLPClassLoader.java:1654)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClass(JNLPClassLoader.java:2497)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:678)
… 7 more
Caused by: java.security.PrivilegedActionException: java.lang.ClassNotFoundException: JavaDetection
at java.security.AccessController.doPrivileged(Native Method)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.findClassNonRecursive(JNLPClassLoader.java:2474)
… 10 more
Caused by: java.lang.ClassNotFoundException: JavaDetection
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader.access$2001(JNLPClassLoader.java:2446)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader$1.run(JNLPClassLoader.java:2477)
at net.sourceforge.jnlp.runtime.JNLPClassLoader$CodeBaseClassLoader$1.run(JNLPClassLoader.java:2475)
… 12 more

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