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

public static OriginalMethod hook(Object originalMethod, Method replacementMethod, String backupIdentifier) {
    ArtMethod backArt;
    if (originalMethod instanceof Method) {
        backArt = hook((Method) originalMethod, replacementMethod);
    } else if (originalMethod instanceof Constructor) {
        backArt = hook((Constructor<?>) originalMethod, replacementMethod);
        backArt.convertToMethod();
    } else {
        throw new RuntimeException("original method must be of type Method or Constructor");
    }

    Method backupMethod = (Method) backArt.getAssociatedMethod();
    backupMethod.setAccessible(true);
    OriginalMethod.store(originalMethod, backupMethod, backupIdentifier);

    return new OriginalMethod(backupMethod);
}
 

private static Object invokePrivate(Object object, String methodName,
    Class[] argTypes, Object[] args) throws SecurityException,
    NoSuchMethodException, IllegalArgumentException, IllegalAccessException,
    InvocationTargetException {

  Method method = null;
  Class clazz = object.getClass();
  while (method == null) {
    try {
      method = clazz.getDeclaredMethod(methodName, argTypes);
    } catch (NoSuchMethodException e) {
      clazz = clazz.getSuperclass();
      if (clazz == null) {
        throw e;
      }
    }
  }
  method.setAccessible(true);
  Object result = method.invoke(object, args);
  return result;
}
 

@Test
public void testLoggingWithPublish() throws Exception {

    File log4jFile = createLog4jFile(LOG4J_CONFIG1);
    try {
        // Set path of log4j properties
        log4jFolderPath = log4jFile.getParentFile().getParent();
        setSysSetting(log4jFolderPath);

        // Delete temp file again
        log4jFile.delete();

        assertFalse(log4jFile.exists());

        // Invoke "private" method :)
        // => publish template file
        Method method = testElm.getClass().getDeclaredMethod(
                "postConstruct");
        method.setAccessible(true);
        method.invoke(testElm);

        assertTrue(log4jFile.exists());

    } finally {
        log4jFile.delete();
        resetSysSetting();
    }

}
 

private static Method getScalableImageMethod(String name,
        Class... parameterTypes) throws Exception {
    Toolkit toolkit = Toolkit.getDefaultToolkit();
    Method method = toolkit.getClass().getDeclaredMethod(name, parameterTypes);
    method.setAccessible(true);
    return method;
}
 

private static void registerNewResource(String file) throws Exception {
    URL urlToAdd = new File(file).toURI().toURL();
    URLClassLoader sysLoader = (URLClassLoader) ClassLoader.getSystemClassLoader();
    Method addMethod = URLClassLoader.class.
            getDeclaredMethod("addURL", new Class[]{URL.class});
    addMethod.setAccessible(true);
    addMethod.invoke(sysLoader, new Object[]{urlToAdd});
}
 

/**
 * Gets the root of the preference hierarchy that this activity is showing.
 * 
 * @return The {@link PreferenceScreen} that is the root of the preference
 *         hierarchy.
 */
public PreferenceScreen getPreferenceScreen() {
    try {
        Method m = PreferenceManager.class.getDeclaredMethod("getPreferenceScreen");
        m.setAccessible(true);
        return (PreferenceScreen) m.invoke(mPreferenceManager);
    } catch(Exception e) {
        Log.e("[PreferencesListFragment] getPreferenceScreen " + e);
    }
    
    return null;
}
 

/**
 * This method use java reflect API to execute method dynamically. Most
 * importantly, it could access the methods with private modifier to break
 * encapsulation.
 *
 * @param object         The object to invoke method.
 * @param methodName     The method name to invoke.
 * @param parameters     The parameters.
 * @param objectClass    Use objectClass to find method to invoke.
 * @param parameterTypes The parameter types.
 * @return Returns the result of dynamically invoking method.
 */
public static Object send(Object object, String methodName, Object[] parameters, Class<?> objectClass,
                          Class<?>[] parameterTypes) throws SecurityException, IllegalArgumentException,
        IllegalAccessException, InvocationTargetException, NoSuchMethodException {
    if (parameters == null) {
        parameters = new Object[]{};
    }
    if (parameterTypes == null) {
        parameterTypes = new Class[]{};
    }
    Method method = objectClass.getDeclaredMethod(methodName, parameterTypes);
    method.setAccessible(true);
    return method.invoke(object, parameters);
}
 

private static List<String> computePaths(MimePath mimePath, String prefixPath, String suffixPath) {
    try {
        Method m = MimePath.class.getDeclaredMethod("getInheritedPaths", String.class, String.class); //NOI18N
        m.setAccessible(true);
        @SuppressWarnings("unchecked")
        List<String> paths = (List<String>) m.invoke(mimePath, prefixPath, suffixPath);
        return paths;
    } catch (Exception e) {
        LOG.log(Level.WARNING, "Can't call org.netbeans.api.editor.mimelookup.MimePath.getInheritedPaths method.", e); //NOI18N
    }
    
    // No inherited mimepaths, provide at least something
    StringBuilder sb = new StringBuilder();
    if (prefixPath != null && prefixPath.length() > 0) {
        sb.append(prefixPath);
    }
    if (mimePath.size() > 0) {
        if (sb.length() > 0) {
            sb.append('/'); //NOI18N
        }
        sb.append(mimePath.getPath());
    }
    if (suffixPath != null && suffixPath.length() > 0) {
        if (sb.length() > 0) {
            sb.append('/'); //NOI18N
        }
        sb.append(suffixPath);
    }
    return Collections.singletonList(sb.toString());
}
 

private static Object invoke(Object object, String methodName, Class<?>[] argTypes, Object[] args) {
	try {
		Method method = object.getClass().getDeclaredMethod(methodName, argTypes);
		method.setAccessible(true);
		return method.invoke(object, args);
	} catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
		throw new RuntimeException("Incompatible KafkaProducer version", e);
	}
}
 

/**
 * 这个方法用来解决超出的menuItem不显示图标的问题，这个方法在AppCompatActivity中不被调用
 * @param featureId
 * @param menu
 * @return
 */
@Override
public boolean onMenuOpened(int featureId, Menu menu) {
    if (featureId == Window.FEATURE_ACTION_BAR && menu != null) {
        if (menu.getClass().getSimpleName().equals("MenuBuilder")) {
            try {
                Method m = menu.getClass().getDeclaredMethod("setOptionalIconsVisible", Boolean.TYPE);
                m.setAccessible(true);
                m.invoke(menu, true);
            } catch (Exception e) {
            }
        }
    }
    return super.onMenuOpened(featureId, menu);
}
 

/**
    * Sets the root of the preference hierarchy.
    * 
    * @param preferenceScreen The root {@link PreferenceScreen} of the preference hierarchy.
    * @return Whether the {@link PreferenceScreen} given is different than the previous. 
    */
static boolean setPreferences(PreferenceManager manager, PreferenceScreen screen) {
	try {
		Method m = PreferenceManager.class.getDeclaredMethod("setPreferences", PreferenceScreen.class);
		m.setAccessible(true);
		return ((Boolean) m.invoke(manager, screen));
	} catch (Exception e) {
		Log.w(TAG, "Couldn't call PreferenceManager.setPreferences by reflection", e);
	}
	return false;
}
 

/**
 * Gets the root of the preference hierarchy that this activity is showing.
 *
 * @return The {@link PreferenceScreen} that is the root of the preference hierarchy.
 */
public PreferenceScreen getPreferenceScreen() {
    try {
        Method m = PreferenceManager.class.getDeclaredMethod("getPreferenceScreen");
        m.setAccessible(true);
        return (PreferenceScreen) m.invoke(mPreferenceManager);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}
 

/**
 * Get the plugin's file name
 *
 * @return the plugin file name
 */
public File getPluginFile() {
    if (!(plugin instanceof JavaPlugin)) {
        return null;
    }
    try {
        Method method = JavaPlugin.class.getDeclaredMethod("getFile");
        method.setAccessible(true);
        return (File) method.invoke(plugin);
    } catch (ReflectiveOperationException e) {
        throw new RuntimeException("Could not get plugin file", e);
    }
}
 

private void performMethodInjection(final Object instance, final Class authorizerClass) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {
    for (final Method method : authorizerClass.getMethods()) {
        if (method.isAnnotationPresent(AuthorizerContext.class)) {
            // make the method accessible
            final boolean isAccessible = method.isAccessible();
            method.setAccessible(true);

            try {
                final Class<?>[] argumentTypes = method.getParameterTypes();

                // look for setters (single argument)
                if (argumentTypes.length == 1) {
                    final Class<?> argumentType = argumentTypes[0];

                    // look for well known types
                    if (NiFiRegistryProperties.class.isAssignableFrom(argumentType)) {
                        // nifi properties injection
                        method.invoke(instance, properties);
                    }
                }
            } finally {
                method.setAccessible(isAccessible);
            }
        }
    }

    final Class parentClass = authorizerClass.getSuperclass();
    if (parentClass != null && Authorizer.class.isAssignableFrom(parentClass)) {
        performMethodInjection(instance, parentClass);
    }
}
 

public static boolean isMobileEnabled(Context context) {
    try {
        Method e = ConnectivityManager.class.getDeclaredMethod("getMobileDataEnabled", new Class[0]);
        e.setAccessible(true);
        return ((Boolean) e.invoke(getConnManager(context), new Object[0])).booleanValue();
    } catch (Exception var2) {
        var2.printStackTrace();
        return true;
    }
}
 

public void testFix217212_ActivatePanel() throws Exception {
    InstanceContent ic = new InstanceContent();
    GlobalLookup4TestImpl nodesLkp = new GlobalLookup4TestImpl(ic);
    UnitTestUtils.prepareTest(new String[]{
                "/META-INF/generated-layer.xml"},
            Lookups.singleton(nodesLkp));

    TestLookupHint hint = new TestLookupHint("annotation/tester");
    ic.add(hint);

    final NavigatorTC navTC = NavigatorTC.getInstance();
    Field field = NavigatorController.class.getDeclaredField("updateWhenNotShown");
    field.setAccessible(true);
    field.setBoolean(navTC.getController(), true);
    try {
        Mutex.EVENT.readAccess(new Mutex.ExceptionAction() {
            @Override
            public Object run() throws Exception {
                navTC.getController().propertyChange(
                        new PropertyChangeEvent(navTC, TopComponent.Registry.PROP_TC_OPENED, null, navTC));
                return null;
            }
        });
        waitForProviders(navTC);
        NavigatorPanel selPanel = navTC.getSelectedPanel();
        assertNotNull("Selected panel is null", selPanel);

        List<? extends NavigatorPanel> panels = navTC.getPanels();
        assertEquals(2, panels.size());

        NavigatorPanel lazyPanel1 = panels.get(0);
        Method method = LazyPanel.class.getDeclaredMethod("initialize");
        method.setAccessible(true);
        NavigatorPanel delegate1 = (NavigatorPanel) method.invoke(lazyPanel1);

        NavigatorPanel lazyPanel2 = panels.get(1);
        method = LazyPanel.class.getDeclaredMethod("initialize");
        method.setAccessible(true);
        NavigatorPanel delegate2 = (NavigatorPanel) method.invoke(lazyPanel2);

        System.out.println("selected panel before: " + selPanel.getDisplayName());

        //find not-selected panel
        final NavigatorPanel toActivate;
        final NavigatorPanel toActivateLazy;
        if (selPanel.equals(lazyPanel1)) {
            toActivate = delegate2;
            toActivateLazy = lazyPanel2;
        } else {
            toActivate = delegate1;
            toActivateLazy = lazyPanel1;

        }

        Mutex.EVENT.readAccess(new Mutex.ExceptionAction() {
            @Override
            public Object run() throws Exception {
                NavigatorHandler.activatePanel(toActivate);
                return null;
            }
        });

        assertTrue(selPanel != navTC.getSelectedPanel());
        assertTrue(toActivateLazy == navTC.getSelectedPanel());

        System.out.println("selected panel after: " + navTC.getSelectedPanel().getDisplayName());
    } finally {
        navTC.getController().propertyChange(
                new PropertyChangeEvent(navTC, TopComponent.Registry.PROP_TC_CLOSED, null, navTC));
    }
}
 

@Test
public void testDeNormalise() throws Exception {

  // init step data
  DenormaliserData stepData = new DenormaliserData();
  stepData.keyFieldNr = 0;
  stepData.keyValue = new HashMap<String, List<Integer>>();
  stepData.keyValue.put( "1", Arrays.asList( new Integer[] { 0, 1 } ) );
  stepData.fieldNameIndex = new int[] { 1, 2 };
  stepData.inputRowMeta = new RowMeta();
  ValueMetaDate outDateField1 = new ValueMetaDate( "date_field[yyyy-MM-dd]" );
  ValueMetaDate outDateField2 = new ValueMetaDate( "date_field[yyyy/MM/dd]" );
  stepData.outputRowMeta = new RowMeta();
  stepData.outputRowMeta.addValueMeta( 0, outDateField1 );
  stepData.outputRowMeta.addValueMeta( 1, outDateField2 );
  stepData.removeNrs = new int[] { };
  stepData.targetResult = new Object[] { null, null };

  // init step meta
  DenormaliserMeta stepMeta = new DenormaliserMeta();
  DenormaliserTargetField[] denormaliserTargetFields = new DenormaliserTargetField[ 2 ];
  DenormaliserTargetField targetField1 = new DenormaliserTargetField();
  DenormaliserTargetField targetField2 = new DenormaliserTargetField();
  targetField1.setTargetFormat( "yyyy-MM-dd" );
  targetField2.setTargetFormat( "yyyy/MM/dd" );
  denormaliserTargetFields[ 0 ] = targetField1;
  denormaliserTargetFields[ 1 ] = targetField2;
  stepMeta.setDenormaliserTargetField( denormaliserTargetFields );

  // init row meta
  RowMetaInterface rowMeta = new RowMeta();
  rowMeta.addValueMeta( 0, new ValueMetaInteger( "key" ) );
  rowMeta.addValueMeta( 1, new ValueMetaString( "stringDate1" ) );
  rowMeta.addValueMeta( 2, new ValueMetaString( "stringDate2" ) );

  // init row data
  Object[] rowData = new Object[] { 1L, "2000-10-20", "2000/10/20" };

  // init step
  denormaliser = new Denormaliser( mockHelper.stepMeta, stepData,
    0, mockHelper.transMeta, mockHelper.trans );

  // inject step meta
  Field metaField = denormaliser.getClass().getDeclaredField( "meta" );
  Assert.assertNotNull( "Can't find a field 'meta' in class Denormalizer", metaField );
  metaField.setAccessible( true );
  metaField.set( denormaliser, stepMeta );

  // call tested method
  Method deNormalise =
    denormaliser.getClass().getDeclaredMethod( "deNormalise", RowMetaInterface.class, Object[].class );
  Assert.assertNotNull( "Can't find a method 'deNormalise' in class Denormalizer", deNormalise );
  deNormalise.setAccessible( true );
  deNormalise.invoke( denormaliser, rowMeta, rowData );

  // vefiry
  for ( Object res : stepData.targetResult ) {
    Assert.assertNotNull( "Date is null", res );
  }
}
 

public void addCompensationContext(Method compensationMethod, Object target) {
  compensationMethod.setAccessible(true);
  contexts.put(compensationMethod.toString(), new CompensationContextInternal(target, compensationMethod));
}
 

private static Method getMethodFromClass(Class<?> cls, String methodName) throws NoSuchMethodException {
    Method method = cls.getDeclaredMethod(methodName);
    method.setAccessible(true);
    return method;
}
 

@Test
public void testTransform() throws Exception {
    Method method = visitor.getClass().getDeclaredMethod("transform", ClassType.class, ModelIndex.class);
    method.setAccessible(true);
    ClassType classType = Mockito.mock(ClassType.class);
    ModelIndex modelIndex = Mockito.mock(ModelIndex.class);
    AssociationEnd lhs = Mockito.mock(AssociationEnd.class);
    AssociationEnd rhs = Mockito.mock(AssociationEnd.class);
    Multiplicity multiplicity = Mockito.mock(Multiplicity.class);
    TagDefinition tagDefinition = Mockito.mock(TagDefinition.class);
    Range range = Mockito.mock(Range.class);
    List<AssociationEnd> ends = new ArrayList<AssociationEnd>();
    ends.add(lhs);
    ends.add(rhs);
    Mockito.when(modelIndex.getAssociationEnds(Matchers.any(Identifier.class))).thenReturn(ends);
    Mockito.when(modelIndex.getTagDefinition(Matchers.any(Identifier.class))).thenReturn(tagDefinition);
    Mockito.when(lhs.getMultiplicity()).thenReturn(multiplicity);
    Mockito.when(rhs.getMultiplicity()).thenReturn(multiplicity);
    TaggedValue taggedValue = Mockito.mock(TaggedValue.class);
    List<TaggedValue> taggedValueList = new ArrayList<TaggedValue>();
    taggedValueList.add(taggedValue);
    Mockito.when(lhs.getTaggedValues()).thenReturn(taggedValueList);
    Mockito.when(rhs.getTaggedValues()).thenReturn(taggedValueList);
    Mockito.when(multiplicity.getRange()).thenReturn(range);
    Mockito.when(range.getLower()).thenReturn(Occurs.ONE);
    Mockito.when(range.getUpper()).thenReturn(Occurs.ONE);
    Mockito.when(tagDefinition.getName()).thenReturn(SliUmlConstants.TAGDEF_NATURAL_KEY);
    Mockito.when(taggedValue.getValue()).thenReturn("true");

    Mockito.when(lhs.getName()).thenReturn("lhsTest");
    Mockito.when(rhs.getName()).thenReturn("rhsTest");
    Mockito.when(lhs.getType()).thenReturn(Identifier.random());
    Mockito.when(rhs.getType()).thenReturn(Identifier.random());
    Mockito.when(lhs.getAssociatedAttributeName()).thenReturn("attribute");
    Mockito.when(rhs.getAssociatedAttributeName()).thenReturn("attribute");
    Mockito.when(classType.getName()).thenReturn("Association");
    Mockito.when(classType.getId()).thenReturn(Identifier.random());

    method.invoke(visitor, classType, modelIndex);

}