Hi,
I found out that it is possible to throw checked exception that is missing
in signature of a method.
It is possible only via annotation style aspect declaration. If you try to
do same via .aj files you'll get compiler exception.
I wonder is it a bug or a feature?
Here is test case.
/** A class that doesn't declare that it throws any checked exception */
public class Foo {
public void foo() {
}
}
/**An aspect that throws Exception each time method Foo is called */
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
@Aspect
public class FooAspect {
@Around("execution(void Foo.foo())")
public Object throwException(ProceedingJoinPoint pjp) throws Throwable {
throw new Exception();
}
}
/**Tests that undeclared check exception was thrown*/
import org.junit.Assert;
import org.junit.Test;
public class TextExceptionHandling {
@Test
public void undeclaredCheckedExceotionIsThrown() {
try {
new Foo().foo();
Assert.fail();
} catch (Exception e) {
Assert.assertTrue(e.getClass().equals(Exception.class));
}
}
}
PS I suppose that it is a bug since JVM suppose to throw
UndeclaredThrowableException in this case.
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