* @param clazz
     *            the class to check. Must not be null.
     * @return true if abstract, false otherwise
     */
    public static boolean isAbstract(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);

        return isAbstract(clazz.getModifiers());
    }

    /**
     * Checks if the specified modifier is abstract.
     *
     * @param modifier

     *
     * @param method
     *            The method. Cannot be {@literal null}
     * @return <code>abstract</code> if the method is abstract
     */
    public static boolean isAbstract(final Method method) {
        return Modifier.isAbstract(method.getModifiers());
    }

    /**
     * Returns whether the method is <code>public</code>.
     *
     * @param method

   */
  public final boolean isFinal() {
    return Modifier.isFinal(getModifiers());
  }

  /** Returns true if the method is abstract. */
  public final boolean isAbstract() {
    return Modifier.isAbstract(getModifiers());
  }

  /** Returns true if the element is native. */
  public final boolean isNative() {
    return Modifier.isNative(getModifiers());
  }

    assertFalse(invokable.isAbstract());
    assertFalse(invokable.isStatic());
    assertTrue(invokable.isAnnotationPresent(Tested.class));
  }

  public void testAbstractMethod() throws Exception {
    Invokable<?, Object> invokable = A.method("abstractMethod");
    assertTrue(invokable.isPackagePrivate());
    assertTrue(invokable.isAbstract());
    assertFalse(invokable.isFinal());

        String appWebPkg = ".app.web.";
        String actionSuffix = "Action";

        // ## Act ##
        policeStoryOfJavaClassChase((srcFile, clazz) -> {
            if (clazz.isInterface() || Modifier.isAbstract(clazz.getModifiers())) { // e.g. BaseAction
                return;
            }
            final String className = clazz.getName();
            if (className.contains(appWebPkg) && className.endsWith(actionSuffix)) {

        assertTrue("Class should be public", java.lang.reflect.Modifier.isPublic(HotThreadMonitorTarget.class.getModifiers()));
        assertFalse("Class should not be abstract", java.lang.reflect.Modifier.isAbstract(HotThreadMonitorTarget.class.getModifiers()));
        assertFalse("Class should not be final", java.lang.reflect.Modifier.isFinal(HotThreadMonitorTarget.class.getModifiers()));
    }

    @Test

            // When
            int modifiers = Handler.class.getModifiers();

            // Then
            assertTrue(Modifier.isPublic(modifiers));
            assertFalse(Modifier.isAbstract(modifiers));
            assertFalse(Modifier.isInterface(modifiers));
        }
    }

            // When
            int modifiers = Handler.class.getModifiers();

            // Then
            assertTrue(Modifier.isPublic(modifiers));
            assertFalse(Modifier.isAbstract(modifiers));
            assertFalse(Modifier.isInterface(modifiers));
        }
    }

        assertFalse("FessWebResourceRoot should not be abstract",
                java.lang.reflect.Modifier.isAbstract(FessWebResourceRoot.class.getModifiers()));
    }

    @Test
    public void test_constructorSignature() {
        // Verify constructor parameter types
        try {

        assertTrue("Class should be public", java.lang.reflect.Modifier.isPublic(SystemMonitorTarget.class.getModifiers()));
        assertFalse("Class should not be abstract", java.lang.reflect.Modifier.isAbstract(SystemMonitorTarget.class.getModifiers()));
        assertFalse("Class should not be final", java.lang.reflect.Modifier.isFinal(SystemMonitorTarget.class.getModifiers()));
    }

    @Test