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How to use DeepCloner method of org.powermock.classloading.DeepCloner class

Best Powermock code snippet using org.powermock.classloading.DeepCloner.DeepCloner

Source:ClassloaderExecutor.java

...15 */16package org.powermock.classloading;17import org.powermock.api.support.ClassLoaderUtil;18import org.powermock.api.support.SafeExceptionRethrower;19import org.powermock.classloading.spi.DeepClonerSPI;20import org.powermock.classloading.spi.DoNotClone;21import org.powermock.reflect.Whitebox;22import java.lang.reflect.Constructor;23import java.lang.reflect.Method;24import java.util.concurrent.Callable;25/**26 * A ClassLoaderExecutor can run any code in any classloader. E.g. assume you have a classloader27 * called myClassloader and you want to execute a (void) method called myMethod in myObject using this CL:28 * <pre>29 *     ClassloaderExecutor cle = new ClassloaderExecutor(myClassloader);30 *     cle.execute(new Runnable() {31 *          public void run() {32 *             myObject.myMethod();33 *          }34 *     });35 * </pre>36 *37 * What happens is that the entire object graph of myObject is deep-cloned into the <code>myClassloader</code> classloader38 * and then the <code>myObject.myMethod()</code> is executed.39 * <p>40 * You can also execute methods that return something:41 * <pre>42 *     ClassloaderExecutor cle = new ClassloaderExecutor(myClassloader);43 *     MyResult result = cle.execute(new Callable<MyResult>() {44 *          public MyResult call() throws Exception {45 *             return myObject.myMethod();46 *          }47 *     });48 * </pre>49 * Here we imagine that <code>myObject.myMethod()</code> returns an object of type <code>MyResult</code>. Again the entire50 * state will be deep-cloned to  <code>myClassloader</code> and then the <code>myObject.myMethod()</code> is executed.51 * The result of the method call is deep-cloned back into the original classloader (the one that made the call to52 * <code>cle.execute(..)</code>) and is ready for use.53 * </p>54 * <p>55 * Note that the ClassloaderExecutor requires a deep cloner implementing the {@link DeepClonerSPI} present in the class-path.56 * </p>57 */58public class ClassloaderExecutor {59	@DoNotClone60	private final ClassLoader classloader;61	public ClassloaderExecutor(ClassLoader classloader) {62		this.classloader = classloader;63	}64	@SuppressWarnings("unchecked")65	public <T> T execute(Callable<T> callable) {66		assertArgumentNotNull(callable, "callable");67		return (T) execute(callable, Whitebox.getMethod(callable.getClass(), "call"));68	}69	public void execute(Runnable runnable) {70		assertArgumentNotNull(runnable, "runnable");71		execute(runnable, Whitebox.getMethod(runnable.getClass(), "run"));72	}73	private void assertArgumentNotNull(Object object, String argumentName) {74		if (object == null) {75			throw new IllegalArgumentException(argumentName + " cannot be null.");76		}77	}78	private Object execute(Object instance, Method method, Object... arguments) {79        final DeepClonerSPI deepCloner = createDeepCloner(classloader);80		final Object objectLoadedWithClassloader = deepCloner.clone(instance);81		final Object[] argumentsLoadedByClassLoader = new Object[arguments.length];82		for (int i = 0; i < arguments.length; i++) {83			final Object argument = arguments[i];84			argumentsLoadedByClassLoader[i] = deepCloner.clone(argument);85		}86		Object result = null;87		try {88			result = Whitebox.invokeMethod(objectLoadedWithClassloader, method.getName(), argumentsLoadedByClassLoader);89		} catch (Exception e) {90			SafeExceptionRethrower.safeRethrow(e);91		}92		return result == null ? null : createDeepCloner(getClass().getClassLoader()).clone(result);93	}94    private DeepClonerSPI createDeepCloner(ClassLoader classLoader) {95        final Class<DeepClonerSPI> deepClonerClass = ClassLoaderUtil.loadClass("org.powermock.classloading.DeepCloner");96        final Constructor<DeepClonerSPI> constructor = Whitebox.getConstructor(deepClonerClass, ClassLoader.class);97        try {98            return constructor.newInstance(classLoader);99        } catch (Exception e) {100            throw new RuntimeException("Failed to instantiate DeepCloner. The DeepCloner implementation must have a one-arg constructor taking a Classloader as parameter.", e);101        }102    }103}...

Source:ObjenesisDeepClonerTest.java

...14 * limitations under the License.15 */16package powermock.classloading;17import org.junit.Test;18import org.powermock.classloading.DeepCloner;19import java.net.URL;20import java.util.Arrays;21import java.util.Collections;22import java.util.List;23import static org.junit.Assert.*;24public class ObjenesisDeepClonerTest {25    @Test26    public void clonesJavaInstances() throws Exception {27        final URL original = new URL("http://www.powermock.org");28        URL clone = new DeepCloner().clone(original);29        assertEquals(clone, original);30        assertNotSame(clone, original);31    }32    @Test33    public void clonesUnmodifiableLists() throws Exception {34        final UnmodifiableListExample original = new UnmodifiableListExample();35        UnmodifiableListExample clone = new DeepCloner().clone(original);36        assertEquals(clone, original);37        assertNotSame(clone, original);38    }39    @Test40    public void clonesArraysWithNullValues() throws Exception {41        Object[] original = new Object[] { "Test", null };42        Object[] clone = new DeepCloner().clone(original);43        assertArrayEquals(clone, original);44        assertNotSame(clone, original);45    }46}47class UnmodifiableListExample {48    private List<NotSerializable> cl = Collections.unmodifiableList(Arrays.asList(new NotSerializable()));49    @Override50    public int hashCode() {51        final int prime = 31;52        int result = 1;53        result = prime * result + ((cl == null) ? 0 : cl.hashCode());54        return result;55    }56    @Override...

Source:XStreamDeepClonerTest.java

...14 * limitations under the License.15 */16package powermock.classloading;17import org.junit.Test;18import org.powermock.classloading.DeepCloner;19import java.net.URL;20import java.util.Arrays;21import java.util.Collections;22import java.util.List;23import static org.junit.Assert.*;24public class XStreamDeepClonerTest {25    @Test26    public void clonesJavaInstances() throws Exception {27        final URL original = new URL("http://www.powermock.org");28        URL clone = new DeepCloner().clone(original);29        assertEquals(clone, original);30        assertNotSame(clone, original);31    }32    @Test33    public void clonesUnmodifiableLists() throws Exception {34        final UnmodifiableListExample original = new UnmodifiableListExample();35        UnmodifiableListExample clone = new DeepCloner().clone(original);36        assertEquals(clone, original);37        assertNotSame(clone, original);38    }39    @Test40    public void clonesArraysWithNullValues() throws Exception {41        Object[] original = new Object[] { "Test", null };42        Object[] clone = new DeepCloner().clone(original);43        assertArrayEquals(clone, original);44        assertNotSame(clone, original);45    }46}47class UnmodifiableListExample {48    private List<NotSerializable> cl = Collections.unmodifiableList(Arrays.asList(new NotSerializable()));49    @Override50    public int hashCode() {51        final int prime = 31;52        int result = 1;53        result = prime * result + ((cl == null) ? 0 : cl.hashCode());54        return result;55    }56    @Override...

DeepCloner

Using AI Code Generation

1import org.powermock.classloading.DeepCloner;2import java.util.ArrayList;3{4    public static void main(String[] args)5    {6        ArrayList<String> list = new ArrayList<String>();7        list.add("a");8        list.add("b");9        list.add("c");10        list.add("d");11        ArrayList<String> list1 = DeepCloner.clone(list);12        System.out.println("Original list: " + list);13        System.out.println("Cloned list: " + list1);14    }15}

DeepCloner

Using AI Code Generation

1import java.util.Date;2import java.util.GregorianCalendar;3import org.powermock.classloading.DeepCloner;4{5    public static void main(String[] args) throws Exception6    {7        Date date = new GregorianCalendar(2012, 10, 12).getTime();8        DeepCloner deepCloner = new DeepCloner();9        Date clonedDate = (Date) deepCloner.deepClone(date);10        System.out.println(clonedDate);11    }12}

DeepCloner

Using AI Code Generation

1import java.io.*;2import org.powermock.classloading.DeepCloner;3public class DeepClonerTest {4    public static void main(String[] args) throws Exception {5        DeepClonerTest d = new DeepClonerTest();6        DeepClonerTest clone = DeepCloner.clone(d);7        System.out.println("Is the clone a clone? " + (d != clone));8    }9}

DeepCloner

Using AI Code Generation

1public class TestDeepCloner {2    public static void main(String[] args) throws Exception {3        TestDeepCloner obj = new TestDeepCloner();4        System.out.println("Original Object: " + obj.hashCode());5        TestDeepCloner clonedObj = (TestDeepCloner) DeepCloner.clone(obj);6        System.out.println("Cloned Object: " + clonedObj.hashCode());7    }8}

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