Java Code Examples for java.lang.reflect.Method#canAccess()

The following examples show how to use java.lang.reflect.Method#canAccess() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Reflector.java    From clj-graal-docs with Eclipse Public License 1.0 5 votes vote down vote up 
private static boolean canAccess(Method m, Object target) {
    // JDK9+ use j.l.r.AccessibleObject::canAccess, which respects module rules
    try {
        return (boolean) m.canAccess(target);
    } catch (Throwable t) {
        throw Util.sneakyThrow(t);
    }

}
Example 2
Source File: CanAccessTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * null object parameter  for static members
 */
public void testStaticMember() throws Exception {
    Method m = Unsafe.class.getDeclaredMethod("throwIllegalAccessError");
    assertFalse(m.canAccess(null));
    assertTrue(m.trySetAccessible());

    try {
        // non-null object parameter
        m.canAccess(INSTANCE);
        assertTrue(false);
    } catch (IllegalArgumentException expected) { }
}
Example 3
Source File: CanAccessTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * the specified object must be an instance of the declaring class
 * for instance members
 */
public void testInstanceMethod() throws Exception {
    Method m = Unsafe.class.getDeclaredMethod("addressSize0");
    assertFalse(m.canAccess(INSTANCE));

    try {
        m.canAccess(null);
        assertTrue(false);
    } catch (IllegalArgumentException expected) { }
}
Example 4
Source File: CanAccessTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * the specified object must be an instance of the declaring class
 * for instance members
 */
public void testInvalidInstanceObject() throws Exception {
    Class<?> clazz = Class.forName("sun.security.x509.X500Name");
    Method m = clazz.getDeclaredMethod("size");

    try {
        m.canAccess(INSTANCE);
        assertTrue(false);
    } catch (IllegalArgumentException expected) { }
}