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Mockito mock objects library core API and implementation

There is a newer version: 5.12.0

/*
 * Copyright (c) 2016 Mockito contributors
 * This program is made available under the terms of the MIT License.
 */
package org.mockito.internal.creation.bytebuddy;

import java.lang.reflect.Method;
import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

public abstract class MockMethodDispatcher {

    private static final ConcurrentMap INSTANCE = new ConcurrentHashMap();

    public static MockMethodDispatcher get(String identifier, Object mock) {
        if (mock == INSTANCE) { // Avoid endless loop if ConcurrentHashMap was redefined to check for being a mock.
            return null;
        } else {
            return INSTANCE.get(identifier);
        }
    }

    public static void set(String identifier, MockMethodDispatcher dispatcher) {
        INSTANCE.putIfAbsent(identifier, dispatcher);
    }

    public abstract Callable handle(Object instance, Method origin, Object[] arguments) throws Throwable;

    public abstract boolean isMock(Object instance);

    public abstract boolean isMocked(Object instance);

    public abstract boolean isOverridden(Object instance, Method origin);
}