JDWP: initialize controller only for the java language

Author: gilles-duboscq

espresso/src/com.oracle.truffle.espresso.jdwp/src/com/oracle/truffle/espresso/jdwp/impl/DebuggerController.java

@@ -700,6 +700,9 @@ public void leaveTruffleContext(Object previous) {
 
     @Override
     public void onLanguageContextInitialized(TruffleContext con, @SuppressWarnings("unused") LanguageInfo language) {
+        if (!"java".equals(language.getId())) {
+            return;
+        }
         truffleContext = con;
 
         // With the Espresso context initialized, we can now complete the JDWP setup and establish