package org.apache.bookkeeper.util;

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class SafeRunnable implements Runnable {

    static final Logger logger = LoggerFactory.getLogger(SafeRunnable.class);

    @Override
    public void run() {
        try {
            safeRun();
        } catch(Throwable t) {
            logger.error("Unexpected throwable caught ", t);
        }
    }

    public abstract void safeRun();

}

@@ -30,16 +30,53 @@
 .util;%0A%0A
+import java.util.function.Consumer;%0A%0A
 /**%0A * L
@@ -1291,10 +1291,1372 @@
 Run();%0A%0A
+    /**%0A     * Utility method to use SafeRunnable from lambdas%0A     * %3Cp%3E%0A     * Eg:%0A     * %3Cpre%3E%0A     * %3Ccode%3E%0A     * executor.submit(SafeRunnable.safeRun(() -%3E %7B%0A     *    // My not-safe code%0A     * %7D);%0A     * %3C/code%3E%0A     * %3C/pre%3E%0A     */%0A    public static SafeRunnable safeRun(Runnable runnable) %7B%0A        return new SafeRunnable() %7B%0A            @Override%0A            public void safeRun() %7B%0A                runnable.run();%0A            %7D%0A        %7D;%0A    %7D%0A%0A    /**%0A     * Utility method to use SafeRunnable from lambdas with%0A     * a custom exception handler%0A     * %3Cp%3E%0A     * Eg:%0A     * %3Cpre%3E%0A     * %3Ccode%3E%0A     * executor.submit(SafeRunnable.safeRun(() -%3E %7B%0A     *    // My not-safe code%0A     * %7D, exception -%3E %7B%0A     *    // Handle exception%0A     * );%0A     * %3C/code%3E%0A     * %3C/pre%3E%0A     *%0A     * @param runnable%0A     * @param exceptionHandler%0A     *            handler that will be called when there are any exception%0A     * @return%0A     */%0A    public static SafeRunnable safeRun(Runnable runnable, Consumer%3CThrowable%3E exceptionHandler) %7B%0A        return new SafeRunnable() %7B%0A            @Override%0A            public void safeRun() %7B%0A                try %7B%0A                    runnable.run();%0A                %7D catch (Throwable t) %7B%0A                    exceptionHandler.accept(t);%0A                    throw t;%0A                %7D%0A            %7D%0A        %7D;%0A    %7D%0A
 %7D%0A

Add utility to use SafeRunnable from Java8 Lambda