Add extra JNI checking to JavaHL test runs.
This really should have been enabled since forever.

* Makefile.in
  (check-tigris-javahl, check-apache-javahl, check-deprecated-authn-javahl):
   Add the -Xcheck:jni option to the JVM parameters.

* subversion/bindings/javahl/tests/org/tigris/subversion/javahl/BasicTests.java
  (BasicTests.CountingProgressListener): New; similar to equivalent class
   in the org.apache... test suite.
  (BasicTests.testDataTransferProgressReport): Do not use an exception to
   notice that progress has been reported. This avoids an otherwise trivial
   warning by triggered the -Xcheck:jni option. The org.apache... test
   suite uses a similar workaround.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1605766 13f79535-47bb-0310-9956-ffa450edef68