Here's a simple fix to add explicit checks for the loadAgentXXX methods toensure NPE is thrown when null arguments are passed. Several other management methods have similar provider not null checks, they just were not present for
agent path and library methods. This should remove the spec ambiguity with AgentLoadException which was being thrown.
Issue: https://bugs.openjdk.java.net/browse/JDK-6640188 Webrev: http://cr.openjdk.java.net/~gadams/6640188/
