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How to use tryLookup method of org.mockito.internal.creation.bytebuddy.SubclassInjectionLoader class

Best Mockito code snippet using org.mockito.internal.creation.bytebuddy.SubclassInjectionLoader.tryLookup

Source:SubclassInjectionLoader.java

...23        if (!Boolean.getBoolean("org.mockito.internal.noUnsafeInjection")24                && ClassInjector.UsingReflection.isAvailable()) {25            this.loader = new WithReflection();26        } else if (ClassInjector.UsingLookup.isAvailable()) {27            this.loader = tryLookup();28        } else {29            throw new MockitoException(join(ERROR_MESSAGE, "", Platform.describe()));30        }31    }32    private static SubclassLoader tryLookup() {33        try {34            Class<?> methodHandles = Class.forName("java.lang.invoke.MethodHandles");35            Object lookup = methodHandles.getMethod("lookup").invoke(null);36            Method privateLookupIn =37                    methodHandles.getMethod(38                            "privateLookupIn",39                            Class.class,40                            Class.forName("java.lang.invoke.MethodHandles$Lookup"));41            Object codegenLookup = privateLookupIn.invoke(null, InjectionBase.class, lookup);42            return new WithLookup(lookup, codegenLookup, privateLookupIn);43        } catch (Exception exception) {44            throw new MockitoException(join(ERROR_MESSAGE, "", Platform.describe()), exception);45        }46    }...

tryLookup

Using AI Code Generation

1import org.mockito.internal.creation.bytebuddy.SubclassInjectionLoader;2import org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator;3import org.mockito.internal.creation.bytebuddy.MockFeatures;4import org.mockito.internal.creation.bytebuddy.MockMethodInterceptor;5import org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator;6import org.mockito.internal.util.MockUtil;7import org.mockito.internal.creation.bytebuddy.MockAccess;8import net.bytebuddy.dynamic.loading.ClassInjector;9import java.lang.reflect.Method;10import java.lang.reflect.Constructor;11import java.lang.reflect.InvocationTargetException;12import java.util.Map;13import java.util.HashMap;14import java.util.concurrent.ConcurrentHashMap;15import java.util.concurrent.ConcurrentMap;16import java.util.concurrent.atomic.AtomicInteger;17import java.util.concurrent.locks.ReentrantLock;18import java.util.concurrent.locks.Lock;19import static org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator.mockedTypeFor;20public class SubclassInjectionLoader extends ClassInjector.UsingLookup {21    private final ConcurrentMap<ClassLoader, Map<String, Class<?>>> cache;22    private final AtomicInteger counter;23    private final Lock lock;24    public SubclassInjectionLoader(ClassInjector.UsingLookup parent) {25        super(parent);26        this.cache = new ConcurrentHashMap<ClassLoader, Map<String, Class<?>>>();27        this.counter = new AtomicInteger();28        this.lock = new ReentrantLock();29    }30    public <T> Class<? extends T> injectMockClasses(ClassLoader classLoader, Class<T> type, Map<String, byte[]> types) {31        lock.lock();32        try {33            Map<String, Class<?>> cacheForLoader = cache.get(classLoader);34            if (cacheForLoader == null) {35                cacheForLoader = new HashMap<String, Class<?>>();36                cache.put(classLoader, cacheForLoader);37            }38            Class<?> cached = cacheForLoader.get(type.getName());39            if (cached != null) {40                return (Class<? extends T>) cached;41            }42            Class<?>[] interfaces = new Class<?>[types.size()];43            int index = 0;44            for (String typeName : types.keySet()) {45                interfaces[index++] = load(classLoader, typeName, types.get(typeName));46            }47            Class<?> subclass = new SubclassBytecodeGenerator(48                    new TypeCachingBytecodeGenerator(MockFeatures.withSettings().build()),49                    new MockMethodInterceptor(new MockAccess(), new MockUtil())50            ).subclassOf(mockedTypeFor(type), interfaces);

tryLookup

Using AI Code Generation

1@Grab(group='org.mockito', module='mockito-core', version='2.7.22')2import org.mockito.internal.creation.bytebuddy.SubclassInjectionLoader3import org.mockito.internal.creation.bytebuddy.MockMethodInterceptor4import net.bytebuddy.description.method.MethodDescription5import net.bytebuddy.description.type.TypeDescription6import net.bytebuddy.dynamic.loading.ClassLoadingStrategy7import net.bytebuddy.implementation.bind.annotation.Argument8import net.bytebuddy.implementation.bind.annotation.Origin9import net.bytebuddy.implementation.bind.annotation.RuntimeType10import net.bytebuddy.implementation.bind.annotation.SuperCall11import java.lang.reflect.Method12import java.util.concurrent.Callable13import java.util.concurrent.atomic.AtomicReference14class SubclassInjectionLoaderTest {15    public static void main(String[] args) {16        try {17            SubclassInjectionLoaderTest test = new SubclassInjectionLoaderTest()18            test.test()19        } catch (Exception e) {20            e.printStackTrace()21        }22    }23    public void test() {24        final AtomicReference<Method> method = new AtomicReference<Method>()25        final AtomicReference<Object> result = new AtomicReference<Object>()26        final AtomicReference<Throwable> throwable = new AtomicReference<Throwable>()27        SubclassInjectionLoader loader = new SubclassInjectionLoader()28        Class<?> type = loader.load(MockMethodInterceptor.class.getName(), ClassLoadingStrategy.Default.INJECTION, new Class<?>[0], new Class<?>[0], new SubclassInjectionLoader.Callback() {29            Object onMethodCall(@Origin MethodDescription.InDefinedShape methodDescription, @Argument(0) Object target, @Argument(1) Object[] arguments, @SuperCall Callable<?> zuper) throws Exception {30                method.set(methodDescription.getActualMethod())31                try {32                    return zuper.call()33                } catch (Throwable t) {34                    throwable.set(t)35                }36            }37        })38        MockMethodInterceptor mock = (MockMethodInterceptor) loader.instantiate(type)39        mock.intercept(null, null, null, null)40        System.out.println(method.get())41        System.out.println(result.get())42        System.out.println(throwable.get())43    }44}45public java.lang.Object org.mockito.internal.creation.bytebuddy.MockMethodInterceptor.intercept(java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object)46@Grab(group='org.mockito', module='mockito-core', version

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