SWIG string conversion for Java may not work on all JVMs

[tomfukushima]

A pitfalls page from java.sun.com indicates that JNI native strings are not null terminated.

​http://java.sun.com/docs/books/jni/html/pitfalls.html

The current SWIG translation from Java to C++ assumes that they are. If this is true, the Java API should be completely unusable. However, Tomcat does seem to work just fine. Different JVMs may also behave differently.

The offending code is the autogenerated string handling going from Java -> C++. It can be easily fixed and will affect all CREFSTRING arguments in the API.

[tomfukushima]

r2995