Can ExecutorService Utilize the Current Thread?

ExecutorService vs. Thread Pool

When developing multithreaded applications, it's essential to manage thread resources effectively. Executors are a convenient tool for managing threads, but what if you need an Executor that leverages the current thread?

Can ExecutorService Utilize the Current Thread?

To achieve this behavior, consider the following options:

1. Java 8 Style

<code class="java">Executor e = Runnable::run;</code>

This lambda expression creates an Executor that directly executes tasks on the current thread.

2. CurrentThreadExecutor

A more explicit method is to use a custom Executor implementation like CurrentThreadExecutor:

<code class="java">class CurrentThreadExecutor implements Executor {
    @Override
    public void execute(Runnable r) {
        r.run();
    }
}</code>

By utilizing CurrentThreadExecutor, you can seamlessly switch between thread pool and current thread execution without altering existing code.

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