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How to use call method of org.powermock.classloading.ClassloaderExecutor class

Best Powermock code snippet using org.powermock.classloading.ClassloaderExecutor.call

Source:ClassloaderExecutor.java

...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];...

call

Using AI Code Generation

1ClassloaderExecutor.callInClassLoaderOf(new ClassLoader() {2    public Class<?> loadClass(String name) throws ClassNotFoundException {3        return Class.forName(name);4    }5}, new Callable<Class<?>>() {6    public Class<?> call() throws Exception {7        return Class.forName("org.powermock.core.classloader.MockClassLoader");8    }9});10ClassloaderExecutor.callInClassLoaderOf(new ClassLoader() {11    public Class<?> loadClass(String name) throws ClassNotFoundException {12        return Class.forName(name);13    }14}, new Callable<Class<?>>() {15    public Class<?> call() throws Exception {16        return Class.forName("org.powermock.core.classloader.MockClassLoader");17    }18});19ClassloaderExecutor.callInClassLoaderOf(new ClassLoader() {20    public Class<?> loadClass(String name) throws ClassNotFoundException {21        return Class.forName(name);22    }23}, new Callable<Class<?>>() {24    public Class<?> call() throws Exception {25        return Class.forName("org.powermock.core.classloader.MockClassLoader");26    }27});28ClassloaderExecutor.callInClassLoaderOf(new ClassLoader() {29    public Class<?> loadClass(String name) throws ClassNotFoundException {30        return Class.forName(name);31    }32}, new Callable<Class<?>>() {33    public Class<?> call() throws Exception {34        return Class.forName("org.powermock.core.classloader.MockClassLoader");35    }36});37ClassloaderExecutor.callInClassLoaderOf(new ClassLoader() {38    public Class<?> loadClass(String name) throws ClassNotFoundException {39        return Class.forName(name);40    }41}, new Callable<Class<?>>() {42    public Class<?> call() throws Exception {43        return Class.forName("org.powermock.core.classloader.MockClassLoader");44    }45});46ClassloaderExecutor.callInClassLoaderOf(new ClassLoader() {

call

Using AI Code Generation

1ClassloaderExecutor.call(() -> {2    Class.forName("org.apache.commons.lang3.StringUtils");3    return null;4});5ClassloaderExecutor.call(() -> {6    Class.forName("org.apache.commons.lang3.StringUtils");7    return null;8});9ClassloaderExecutor.call(() -> {10    Class.forName("org.apache.commons.lang3.StringUtils");11    return null;12});13ClassloaderExecutor.call(() -> {14    Class.forName("org.apache.commons.lang3.StringUtils");15    return null;16});17ClassloaderExecutor.call(() -> {18    Class.forName("org.apache.commons.lang3.StringUtils");19    return null;20});21ClassloaderExecutor.call(() -> {22    Class.forName("org.apache.commons.lang3.StringUtils");23    return null;24});25ClassloaderExecutor.call(() -> {26    Class.forName("org.apache.commons.lang3.StringUtils");27    return null;28});29ClassloaderExecutor.call(() -> {30    Class.forName("org.apache.commons.lang3.StringUtils");31    return null;32});33ClassloaderExecutor.call(() -> {34    Class.forName("org.apache.commons.lang3.StringUtils");35    return null;36});37ClassloaderExecutor.call(() -> {38    Class.forName("org.apache.commons.lang3.StringUtils");39    return null;40});41ClassloaderExecutor.call(() -> {42    Class.forName("org.apache.commons.lang3.StringUtils");43    return null;44});

call

Using AI Code Generation

1ClassloaderExecutor executor = new ClassloaderExecutor();2executor.call(new Callable<Class<?>>() {3    public Class<?> call() throws Exception {4        return Class.forName("org.powermock.tests.utils.impl.ClassWithStaticMethods");5    }6});7ClassloaderExecutor executor = new ClassloaderExecutor();8executor.call(new Callable<Class<?>>() {9    public Class<?> call() throws Exception {10        return Class.forName("org.powermock.tests.utils.impl.ClassWithStaticMethods");11    }12});13ClassloaderExecutor executor = new ClassloaderExecutor();14executor.call(new Callable<Class<?>>() {15    public Class<?> call() throws Exception {16        return Class.forName("org.powermock.tests.utils.impl.ClassWithStaticMethods");17    }18});19ClassloaderExecutor executor = new ClassloaderExecutor();20executor.call(new Callable<Class<?>>() {21    public Class<?> call() throws Exception {22        return Class.forName("org.powermock.tests.utils.impl.ClassWithStaticMethods");23    }24});25ClassloaderExecutor executor = new ClassloaderExecutor();26executor.call(new Callable<Class<?>>() {27    public Class<?> call() throws Exception {28        return Class.forName("org.powermock.tests.utils.impl.ClassWithStaticMethods");29    }30});31ClassloaderExecutor executor = new ClassloaderExecutor();32executor.call(new Callable<Class<?>>() {33    public Class<?> call() throws Exception {34        return Class.forName("org.powermock.tests.utils.impl.ClassWithStaticMethods");35    }36});

call

Using AI Code Generation

1public void testCallMethod() throws Exception {2    final ClassLoader classLoader = new URLClassLoader(new URL[]{});3    final Class<?> clazz = Class.forName("org.powermock.classloading.ClassloaderExecutor");4    final Method callMethod = clazz.getDeclaredMethod("call", ClassLoader.class, Callable.class);5    callMethod.setAccessible(true);6    final String result = (String) callMethod.invoke(null, classLoader, new Callable<String>() {7        public String call() throws Exception {8            return "Hello World";9        }10    });11    assertEquals("Hello World", result);12}

call

Using AI Code Generation

1String code = "import org.apache.commons.lang3.StringUtils; return StringUtils.capitalize(\"hello\");";2ClassLoader classLoader = ClassLoader.getSystemClassLoader();3Object result = ClassloaderExecutor.call(code, classLoader);4System.out.println(result);5String code = "import org.apache.commons.lang3.StringUtils; return StringUtils.capitalize(\"hello\");";6ClassLoader classLoader = ClassLoader.getSystemClassLoader();7Object result = ClassloaderExecutor.call(code, classLoader);8System.out.println(result);

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