001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.jet.utils;
018    
019    import java.io.Closeable;
020    
021    public class ExceptionUtils {
022    
023        private ExceptionUtils() {
024        }
025    
026        /**
027         * Translate exception to unchecked exception.
028         *
029         * Return type is specified to make it possible to use it like this:
030         *     throw ExceptionUtils.rethrow(e);
031         * In this case compiler knows that code after this rethrowing won't be executed.
032         */
033        public static RuntimeException rethrow(Throwable e) {
034            if (e instanceof RuntimeException) {
035                throw (RuntimeException) e;
036            }
037            else if (e instanceof Error) {
038                throw (Error) e;
039            }
040            else {
041                throw new RuntimeException(e);
042            }
043        }
044    
045        public static void closeQuietly(Closeable closeable) {
046            if (closeable != null) {
047                try {
048                    closeable.close();
049                } catch (Throwable ignored) {
050                }
051            }
052        }
053    
054    }