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

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

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...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}...

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...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...

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...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...

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DeepCloner

Using AI Code Generation

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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}

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DeepCloner

Using AI Code Generation

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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}

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DeepCloner

Using AI Code Generation

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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}

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DeepCloner

Using AI Code Generation

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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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