NativeMethodAccessorImpl invoke method declare it can throws IllegalArgumentException
or InvocationTargetException
public Object invoke(Object obj, Object[] args) throws IllegalArgumentException, InvocationTargetException { // We can't inflate methods belonging to vm-anonymous classes because // that kind of class can't be referred to by name, hence can't be // found from the generated bytecode. if (++numInvocations > ReflectionFactory.inflationThreshold() && !ReflectUtil.isVMAnonymousClass(method.getDeclaringClass())) { MethodAccessorImpl acc = (MethodAccessorImpl) new MethodAccessorGenerator(). generateMethod(method.getDeclaringClass(), method.getName(), method.getParameterTypes(), method.getReturnType(), method.getExceptionTypes(), method.getModifiers()); parent.setDelegate(acc); } return invoke0(method, obj, args); } private static native Object invoke0(Method m, Object obj, Object[] args);
Native method throws IllegalArgumentException in some cases, e.g.
Exception in thread "main" java.lang.IllegalArgumentException: argument type mismatch at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
But I don't see any option for throwing InvocationTargetException
checked exception
Can InvocationTargetException
be thrown by native method invoke0
(which doesn't declare exceptions)?
Or is InvocationTargetException
remains because of method signature backward/future compatibility ?
invoke0 can throw InvocationTargetException
:
Exception in Application start method
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
For example when FXML resource file was not found.