Use NewGlobalRef since Vm in unref'd by DeleteGlobalRef.

diff --git a/src/bindings/java/jmsg_vm.cpp b/src/bindings/java/jmsg_vm.cpp
index d1ca0a7..76b0dce 100644 (file)
--- a/src/bindings/java/jmsg_vm.cpp
+++ b/src/bindings/java/jmsg_vm.cpp
@@ -77,7 +77,7 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_create(JNIEnv* env, jobject jVm,
   env->ReleaseStringUTFChars(jname, name);
 
   jvm_bind(env, jVm, vm);
-  jVm = env->NewWeakGlobalRef(jVm);
+  jVm = env->NewGlobalRef(jVm);
   // We use the extension level of the host, even if that's somehow disturbing
   vm->extension_set(JAVA_HOST_LEVEL, (void*)jVm);
 }