diff options
Diffstat (limited to 'guava/src/com/google/common/cache/LongAddables.java')
-rw-r--r-- | guava/src/com/google/common/cache/LongAddables.java | 54 |
1 files changed, 28 insertions, 26 deletions
diff --git a/guava/src/com/google/common/cache/LongAddables.java b/guava/src/com/google/common/cache/LongAddables.java index 203d2ef73..a110c6cf1 100644 --- a/guava/src/com/google/common/cache/LongAddables.java +++ b/guava/src/com/google/common/cache/LongAddables.java @@ -1,59 +1,61 @@ /* * Copyright (C) 2012 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 + * 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. + * 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.cache; import com.google.common.annotations.GwtCompatible; import com.google.common.base.Supplier; + import java.util.concurrent.atomic.AtomicLong; /** - * Source of {@link LongAddable} objects that deals with GWT, Unsafe, and all that. - * + * Source of {@link LongAddable} objects that deals with GWT, Unsafe, and all + * that. + * * @author Louis Wasserman */ @GwtCompatible(emulated = true) final class LongAddables { private static final Supplier<LongAddable> SUPPLIER; - + static { Supplier<LongAddable> supplier; try { - new LongAdder(); // trigger static initialization of the LongAdder class, which may fail - supplier = - new Supplier<LongAddable>() { - @Override - public LongAddable get() { - return new LongAdder(); - } - }; + new LongAdder(); + supplier = new Supplier<LongAddable>() { + @Override + public LongAddable get() { + return new LongAdder(); + } + }; } catch (Throwable t) { // we really want to catch *everything* - supplier = - new Supplier<LongAddable>() { - @Override - public LongAddable get() { - return new PureJavaLongAddable(); - } - }; + supplier = new Supplier<LongAddable>() { + @Override + public LongAddable get() { + return new PureJavaLongAddable(); + } + }; } SUPPLIER = supplier; } - + public static LongAddable create() { return SUPPLIER.get(); } - + private static final class PureJavaLongAddable extends AtomicLong implements LongAddable { @Override public void increment() { |