Hi, I installed JRI in my 64bit linux. And when i run the test case in JRI, it turns out such Exception: JNI_GetCreatedJavaVMs said there's no JVM running! Exception in thread "Thread-1" java.lang.NullPointerException at org.rosuda.JRI.Rengine.setupR(Rengine.java:131) at org.rosuda.JRI.Rengine.run(Rengine.java:532) How can I solve it? my jdk version is 1.6. Thanks a lot! -- Best regards