Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;

public class Main {
    public static void invokeAll(final List<Runnable> tasks, final ExecutorService executor)
            throws InterruptedException, ExecutionException {
        ExecutionException saved = null;

        if (executor != null) {
            final List<Future<?>> futures = new ArrayList<>();
            for (final Runnable task : tasks)
                futures.add(executor.submit(task));

            for (final Future<?> future : futures) {
                try {
                    future.get();
                } catch (InterruptedException e) {
                    throw e;
                } catch (ExecutionException e) {
                    if (saved == null) {
                        saved = e;
                    } else {
                        saved.addSuppressed(e);
                    }
                }
            }
        } else {
            for (final Runnable task : tasks) {
                try {
                    task.run();
                } catch (Exception e) {
                    if (saved == null) {
                        saved = new ExecutionException(e);
                    } else {
                        saved.addSuppressed(e);
                    }
                }
            }
        }

        if (saved != null)
            throw saved;
    }
}