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How to use ClassloaderWrapper class of org.powermock.core.classloader package

Best Powermock code snippet using org.powermock.core.classloader.ClassloaderWrapper

Source:PowerMockitoCore.java

...26import org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator;27import org.powermock.api.mockito.internal.stubbing.PowerMockCallRealMethod;28import org.powermock.api.mockito.internal.verification.DefaultConstructorArgumentsVerification;29import org.powermock.core.MockRepository;30import org.powermock.core.classloader.ClassloaderWrapper;31import org.powermock.core.spi.NewInvocationControl;32import org.powermock.reflect.Whitebox;33import java.lang.reflect.Method;34import java.util.concurrent.Callable;35import static org.powermock.utils.Asserts.assertNotNull;36public class PowerMockitoCore {37    38    private static final PowerMockCallRealMethod POWER_MOCK_CALL_REAL_METHOD = new PowerMockCallRealMethod();39    40    private static final String NO_OBJECT_CREATION_ERROR_MESSAGE_TEMPLATE = "No instantiation of class %s was recorded during the test. Note that only expected object creations (e.g. those using whenNew(..)) can be verified.";41    42    public PowerMockitoStubber doAnswer(final Answer answer) {43        return doAnswer(new Callable<Stubber>() {44            @Override45            public Stubber call() throws Exception {46                return Mockito.doAnswer(answer);47            }48        });49    }50    51    public PowerMockitoStubber doThrow(final Throwable toBeThrown) {52        return doAnswer(new Callable<Stubber>() {53            @Override54            public Stubber call() throws Exception {55                return Mockito.doThrow(toBeThrown);56            }57        });58    }59    60    public PowerMockitoStubber doCallRealMethod() {61        return doAnswer(new Callable<Stubber>() {62            @Override63            public Stubber call() throws Exception {64                return Mockito.doCallRealMethod();65            }66        });67    }68    69    public PowerMockitoStubber doNothing() {70        return doAnswer(new Callable<Stubber>() {71            @Override72            public Stubber call() throws Exception {73                return Mockito.doNothing();74            }75        });76    }77    78    public PowerMockitoStubber doReturn(final Object toBeReturned) {79        return doAnswer(new Callable<Stubber>() {80            @Override81            public Stubber call() throws Exception {82                return Mockito.doReturn(toBeReturned);83            }84        });85    }86    87    public PowerMockitoStubber doAnswer(final Object toBeReturned, final Object... othersToBeReturned) {88        return doAnswer(new Callable<Stubber>() {89            @Override90            public Stubber call() throws Exception {91                return Mockito.doReturn(toBeReturned, othersToBeReturned);92            }93        });94    }95    96    public <T> DefaultConstructorArgumentsVerification<T> verifyNew(final Class<T> mock, final VerificationMode mode) {97        assertNotNull(mock, "Class to verify cannot be null");98        assertNotNull(mode, "Verify mode cannot be null");99        @SuppressWarnings("unchecked") MockitoNewInvocationControl<T> invocationControl = (MockitoNewInvocationControl<T>) MockRepository.getNewInstanceControl(mock);100    101        assertNotNull(invocationControl, String.format(NO_OBJECT_CREATION_ERROR_MESSAGE_TEMPLATE, Whitebox.getType(mock).getName()));102    103        invocationControl.verify(mode);104        //noinspection unchecked105        return new DefaultConstructorArgumentsVerification<T>((NewInvocationControl<T>) invocationControl, mock);106    }107    108    public <T> T spy(final T object) {109        MockSettings mockSettings = Mockito.withSettings()110                                           .spiedInstance(object)111                                           .defaultAnswer(POWER_MOCK_CALL_REAL_METHOD);112        //noinspection unchecked113        return DefaultMockCreator.mock((Class<T>) Whitebox.getType(object), false, true, object, mockSettings, (Method[]) null);114    }115    116    private PowerMockitoStubber doAnswer(final Callable<Stubber> callable) {117        final Stubber stubber = ClassloaderWrapper.runWithClass(callable);118        return new PowerMockitoStubberImpl(stubber);119    }120}...

Source:ClassloaderWrapper.java

...19import org.powermock.core.InvocationException;20import java.util.concurrent.Callable;21// We change the context classloader to the current CL in order for the Mockito22// framework to load it's plugins (such as MockMaker) correctly.23public class ClassloaderWrapper {24    25    public static void runWithClass(final Runnable runnable) {26        runWithClassClassLoader(ClassloaderWrapper.class.getClassLoader(), runnable);27    }28    29    public static void runWithClassClassLoader(final ClassLoader classLoader, final Runnable runnable) {30        final ClassLoader originalCL = Thread.currentThread().getContextClassLoader();31        Thread.currentThread().setContextClassLoader(classLoader);32        try {33            runnable.run();34        } finally {35            Thread.currentThread().setContextClassLoader(originalCL);36        }37    }38    39    public static <V> V runWithClass(final Callable<V> callable) {40        return runWithClassClassLoader(ClassloaderWrapper.class.getClassLoader(), callable);41    }42    43    public static <V> V runWithClassClassLoader(final ClassLoader classLoader, final Callable<V> callable) {44        final ClassLoader originalCL = Thread.currentThread().getContextClassLoader();45        Thread.currentThread().setContextClassLoader(classLoader);46        try {47            return callable.call();48        } catch (Exception e) {49            throw new InvocationException(e);50        } finally {51            Thread.currentThread().setContextClassLoader(originalCL);52        }53    }54}...

ClassloaderWrapper

Using AI Code Generation

1package com.powermock.examples;2import java.lang.reflect.Method;3import org.powermock.core.classloader.ClassLoaderWrapper;4import org.powermock.core.classloader.MockClassLoader;5{6    public static void main(String[] args) throws Exception7    {8        ClassLoaderWrapper wrapper = new ClassLoaderWrapper();9        Class<?> clazz = wrapper.loadClass("com.powermock.examples.MyClass");10        Object obj = clazz.newInstance();11        Method method = clazz.getMethod("method");12        method.invoke(obj);13    }14}15package com.powermock.examples;16import java.lang.reflect.Method;17import org.powermock.core.classloader.ClassLoaderWrapper;18import org.powermock.core.classloader.MockClassLoader;19{20    public static void main(String[] args) throws Exception21    {22        MockClassLoader mockClassLoader = new MockClassLoader();23        ClassLoaderWrapper wrapper = new ClassLoaderWrapper(mockClassLoader);24        Class<?> clazz = wrapper.loadClass("com.powermock.examples.MyClass");25        Object obj = clazz.newInstance();26        Method method = clazz.getMethod("method");27        method.invoke(obj);28    }29}30package com.powermock.examples;31import java.lang.reflect.Method;32import org.powermock.core.classloader.ClassLoaderRepository;33{34    public static void main(String[] args) throws Exception35    {36        ClassLoaderRepository repository = ClassLoaderRepository.getRepository();37        Class<?> clazz = repository.loadClass("com.powermock.examples.MyClass");38        Object obj = clazz.newInstance();39        Method method = clazz.getMethod("method");40        method.invoke(obj);41    }42}43package com.powermock.examples;44import java.lang.reflect.Method;45import org.powermock.core.classloader.ClassLoaderRepository;46{47    public static void main(String[] args) throws Exception48    {49        ClassLoaderRepository repository = ClassLoaderRepository.getRepository();50        Class<?> clazz = repository.loadClass("com.powermock.examples.MyClass");51        Object obj = clazz.newInstance();52        Method method = clazz.getMethod("method");53        method.invoke(obj);54    }55}

ClassloaderWrapper

Using AI Code Generation

1ClassloaderWrapper wrapper = new ClassloaderWrapper();2Class<?> clazz = wrapper.loadClass("com.example.ClassToTest");3Object object = clazz.newInstance();4Method method = clazz.getDeclaredMethod("methodToTest");5method.invoke(object);6ClassloaderExcluder excluder = new ClassloaderExcluder();7excluder.excludePackage("org.powermock");8Class<?> clazz = excluder.loadClass("com.example.ClassToTest");9Object object = clazz.newInstance();10Method method = clazz.getDeclaredMethod("methodToTest");11method.invoke(object);

ClassloaderWrapper

Using AI Code Generation

1Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");2Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");3Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");4Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");5Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");6Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");7Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");8Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");9Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");10Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");

ClassloaderWrapper

Using AI Code Generation

1public class 4 {2    public static void main(String[] args) throws Exception {3        ClassLoaderWrapper wrapper = new ClassLoaderWrapper(Class.forName("4").getClassLoader());4        Class<?> clazz = wrapper.loadClass("4");5        Method method = clazz.getMethod("main", String[].class);6        method.invoke(null, new Object[]{null});7    }8}9public class 4 {10    public static void main(String[] args) {11        System.out.println("Hello World!");12    }13}

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