Comment 26 for bug 152362

The problem isn't specific to the plugin. It affects the whole JVM. Simply instantiating a Frame or JFrame crashes it.

As a simplified test, you can create the file, Test.java:
class Test {
    public static void main(String[] args) {
        new java.awt.Frame();
    }
}

Then, assuming icedtea is the default JVM, run:
javac Test.java
java Test

And it crashes. Building my own package prevents the problem. Strange...