Add catches_strings test to test throws char * typemap

Examples/test-suite/java/catches_strings_runme.java

@@ -0,0 +1,28 @@
+import catches_strings.*;
+
+public class catches_strings_runme {
+  static {
+    try {
+        System.loadLibrary("catches_strings");
+    } catch (UnsatisfiedLinkError e) {
+      System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e);
+      System.exit(1);
+    }
+  }
+
+  public static void main(String argv[]) throws Throwable
+  {
+    {
+      boolean exception_thrown = false;
+      try {
+        StringsThrower.charstring();
+      } catch (RuntimeException e) {
+        if (!e.getMessage().contains("charstring message"))
+          throw new RuntimeException("incorrect exception message");
+        exception_thrown = true;
+      }
+      if (!exception_thrown)
+        throw new RuntimeException("Should have thrown an exception");
+    }
+  }
+}