I was writing a Java program, and when I tried to use a string, a suggestion that popped up was com.sun.org.apache.xpath.internal.operations.String.
com.sun.org.apache.xpath.internal.operations.String
What is
This is a class used by some Apache implementation that unfortunately shows up in your Java CodeAssist.
If you are using Eclipse you can check that out: http://www.eclipse.org/forums/index.php/t/80401/