/* gets target VM version from the given VMVersionMismatchException.
* Note that we need to reflectively call the method because of we may
* have got this from different classloader's namespace */
private static String getVMVersion(Throwable throwable)
throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
// assert isVMVersionMismatch(throwable), "not a VMVersionMismatch"
Class expClass = throwable.getClass();
Method targetVersionMethod = expClass.getMethod("getTargetVersion", new Class[0]);
return (String) targetVersionMethod.invoke(throwable);
}
/* Is the given throwable an instanceof VMVersionMismatchException?
* Note that we can't do instanceof check because the exception
* class might have been loaded by a different class loader.
*/
private static boolean isVMVersionMismatch(Throwable throwable) {
String className = throwable.getClass().getName();
return className.equals("sun.jvm.hotspot.runtime.VMVersionMismatchException");
}