1 files changed, 0 insertions, 143 deletions
diff --git a/android/guava-tests/test/com/google/common/util/concurrent/AbstractFutureFallbackAtomicHelperTest.java b/android/guava-tests/test/com/google/common/util/concurrent/AbstractFutureFallbackAtomicHelperTest.java
deleted file mode 100644
index d075f8016..000000000
--- a/android/guava-tests/test/com/google/common/util/concurrent/AbstractFutureFallbackAtomicHelperTest.java
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (C) 2015 The Guava Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
- * in compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under the License
- * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
- * or implied. See the License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package com.google.common.util.concurrent;
-
-import com.google.common.collect.ImmutableSet;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.net.URLClassLoader;
-import java.util.Set;
-import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
-import junit.framework.TestCase;
-import junit.framework.TestSuite;
-
-/**
- * Tests our AtomicHelper fallback strategies in AbstractFuture.
- *
- * <p>On different platforms AbstractFuture uses different strategies for its core synchronization
- * primitives. The strategies are all implemented as subtypes of AtomicHelper and the strategy is
- * selected in the static initializer of AbstractFuture. This is convenient and performant but
- * introduces some testing difficulties. This test exercises the two fallback strategies in abstract
- * future.
- *
- * <ul>
- *   <li>SafeAtomicHelper: uses AtomicReferenceFieldsUpdaters to implement synchronization
- *   <li>SynchronizedHelper: uses {@code synchronized} blocks for synchronization
- * </ul>
- *
- * To force selection of our fallback strategies we load {@link AbstractFuture} (and all of {@code
- * com.google.common.util.concurrent} in degenerate class loaders which make certain platform
- * classes unavailable. Then we construct a test suite so we can run the normal AbstractFutureTest
- * test methods in these degenerate classloaders.
- */
-
-public class AbstractFutureFallbackAtomicHelperTest extends TestCase {
-
-  // stash these in static fields to avoid loading them over and over again (speeds up test
-  // execution significantly)
-
-  /**
-   * This classloader disallows {@link sun.misc.Unsafe}, which will prevent us from selecting our
-   * preferred strategy {@code UnsafeAtomicHelper}.
-   */
-  private static final ClassLoader NO_UNSAFE =
-      getClassLoader(ImmutableSet.of(sun.misc.Unsafe.class.getName()));
-
-  /**
-   * This classloader disallows {@link sun.misc.Unsafe} and {@link AtomicReferenceFieldUpdater},
-   * which will prevent us from selecting our {@code SafeAtomicHelper} strategy.
-   */
-  private static final ClassLoader NO_ATOMIC_REFERENCE_FIELD_UPDATER =
-      getClassLoader(
-          ImmutableSet.of(
-              sun.misc.Unsafe.class.getName(), AtomicReferenceFieldUpdater.class.getName()));
-
-  public static TestSuite suite() {
-    // we create a test suite containing a test for every AbstractFutureTest test method and we
-    // set it as the name of the test.  Then in runTest we can reflectively load and invoke the
-    // corresponding method on AbstractFutureTest in the correct classloader.
-    TestSuite suite = new TestSuite(AbstractFutureFallbackAtomicHelperTest.class.getName());
-    for (Method method : AbstractFutureTest.class.getDeclaredMethods()) {
-      if (Modifier.isPublic(method.getModifiers()) && method.getName().startsWith("test")) {
-        suite.addTest(
-            TestSuite.createTest(AbstractFutureFallbackAtomicHelperTest.class, method.getName()));
-      }
-    }
-    return suite;
-  }
-
-  @Override
-  public void runTest() throws Exception {
-    // First ensure that our classloaders are initializing the correct helper versions
-    checkHelperVersion(getClass().getClassLoader(), "UnsafeAtomicHelper");
-    checkHelperVersion(NO_UNSAFE, "SafeAtomicHelper");
-    checkHelperVersion(NO_ATOMIC_REFERENCE_FIELD_UPDATER, "SynchronizedHelper");
-
-    // Run the corresponding AbstractFutureTest test method in a new classloader that disallows
-    // certain core jdk classes.
-    ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
-    Thread.currentThread().setContextClassLoader(NO_UNSAFE);
-    try {
-      runTestMethod(NO_UNSAFE);
-    } finally {
-      Thread.currentThread().setContextClassLoader(oldClassLoader);
-    }
-
-    Thread.currentThread().setContextClassLoader(NO_ATOMIC_REFERENCE_FIELD_UPDATER);
-    try {
-      runTestMethod(NO_ATOMIC_REFERENCE_FIELD_UPDATER);
-      // TODO(lukes): assert that the logs are full of errors
-    } finally {
-      Thread.currentThread().setContextClassLoader(oldClassLoader);
-    }
-  }
-
-  private void runTestMethod(ClassLoader classLoader) throws Exception {
-    Class<?> test = classLoader.loadClass(AbstractFutureTest.class.getName());
-    test.getMethod(getName()).invoke(test.newInstance());
-  }
-
-  private void checkHelperVersion(ClassLoader classLoader, String expectedHelperClassName)
-      throws Exception {
-    // Make sure we are actually running with the expected helper implementation
-    Class<?> abstractFutureClass = classLoader.loadClass(AbstractFuture.class.getName());
-    Field helperField = abstractFutureClass.getDeclaredField("ATOMIC_HELPER");
-    helperField.setAccessible(true);
-    assertEquals(expectedHelperClassName, helperField.get(null).getClass().getSimpleName());
-  }
-
-  private static ClassLoader getClassLoader(final Set<String> disallowedClassNames) {
-    final String concurrentPackage = SettableFuture.class.getPackage().getName();
-    ClassLoader classLoader = AbstractFutureFallbackAtomicHelperTest.class.getClassLoader();
-    // we delegate to the current classloader so both loaders agree on classes like TestCase
-    return new URLClassLoader(ClassPathUtil.getClassPathUrls(), classLoader) {
-      @Override
-      public Class<?> loadClass(String name) throws ClassNotFoundException {
-        if (disallowedClassNames.contains(name)) {
-          throw new ClassNotFoundException("I'm sorry Dave, I'm afraid I can't do that.");
-        }
-        if (name.startsWith(concurrentPackage)) {
-          Class<?> c = findLoadedClass(name);
-          if (c == null) {
-            return super.findClass(name);
-          }
-          return c;
-        }
-        return super.loadClass(name);
-      }
-    };
-  }
-}