p4 cleanup

platform/util/src/com/intellij/util/VolatileDoubleCheckedLockedInit.java

@@ -1,49 +0,0 @@
-/*
- * Copyright 2000-2009 JetBrains s.r.o.
- *
- * 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.intellij.util;
-
-import org.jetbrains.annotations.Nullable;
-
-public abstract class VolatileDoubleCheckedLockedInit<T> {
-  private volatile boolean myInitialized;
-  private T myInstance;
-  private final Object myLock;
-
-  public VolatileDoubleCheckedLockedInit() {
-    myLock = new Object();
-  }
-
-  @Nullable
-  protected abstract T createT();
-
-  @Nullable
-  public T get() {
-    if (! myInitialized) {
-      synchronized (myLock) {
-        if (! myInitialized) {
-          myInstance = createT();
-          myInitialized = true;
-        }
-      }
-    }
-    return myInstance;
-  }
-
-  public void reset() {
-    myInitialized = false;
-  }
-}