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JMockit is a Java toolkit for automated developer testing. It contains APIs for the creation of the objects to be tested, for mocking dependencies, and for faking external APIs; JUnit (4 & 5) and TestNG test runners are supported. It also contains an advanced code coverage tool.

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/*
 * Copyright (c) 2006 Rogério Liesenfeld
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.internal.expectations.argumentMatching;

import javax.annotation.*;

public final class NonNullityMatcher implements ArgumentMatcher
{
   public static final ArgumentMatcher INSTANCE = new NonNullityMatcher();

   private NonNullityMatcher() {}

   @Override
   public boolean same(@Nonnull NonNullityMatcher other) { return true; }

   @Override
   public boolean matches(@Nullable Object argValue) { return argValue != null; }

   @Override
   public void writeMismatchPhrase(@Nonnull ArgumentMismatch argumentMismatch) { argumentMismatch.append("not null"); }
}