[CMake] implements Comparable

[EXT-Harris, Scott H]

Hi,

How can I get SWIG to generate a java class that "implements Comparable"?

Let's say I have a C++ class X and an SWIG interface X that generates a compareTo(X rhs) method.

If I use the Java class generated by SWIG in a TreeMap then the second put will throw this exception:
CREATION exception: java.lang.ClassCastException: com.myCompany.project.X
in exception handler got exception: java.lang.NullPointerException

But if I modify the generated X.java file from
   public class X {
to
  public class X implements Comparable<X> {
then the exception is not thrown and the compareTo function is used as expected.

Can I get SWIG to add "implements Comparable<X> to the class?

FYI: For example of the test code:
X first = new X(1);
X last = new X(9);
TreeMap<X, String>mm = new TreeMap<X, String>();
String old = mm.put(last, "last");
// this next line throws the exeption
old = mm.put(first, "first");


Thanks,
  Scott

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