How to use invoke method of org.easymock.tests.StacktraceTest class

Best Easymock code snippet using org.easymock.tests.StacktraceTest.invoke

Source:StacktraceTest.java

...95        @SuppressWarnings("Convert2Lambda") // otherwise the assertion below won't work96        IMethods answer = (IMethods) Proxy.newProxyInstance(getClass().getClassLoader(),97            new Class<?>[] { IMethods.class }, new InvocationHandler() {98                @Override99                public Object invoke(Object proxy, Method method, Object[] args) {100                    throw new NullPointerException();101                }102        });103        expect(mock.oneArg("")).andDelegateTo(answer);104        replay(mock);105        try {106            mock.oneArg("");107        } catch (NullPointerException expected) {108            Class<? extends InvocationHandler> proxyClass = Proxy.getInvocationHandler(answer).getClass();109            assertTrue("stack trace must not be cut but was\nstarting with " +110                       expected.getStackTrace()[0] + "\ninstead of " + proxyClass,111                Util.startWithClass(expected, proxyClass));112        }113    }...

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