rethrow

A simple example for transforming checked exceptions into unchecked exceptions for simple use in Java Streams.

Usage

Before

import java.io.IOException;
import java.io.UncheckedIOException;

public class PathContainer implements Iterable<Path> {

    public void copyAllTo(final Path target) {
        forEach(source -> {
            try {
                Files.copy(source, target);
            } catch (final IOException e) {
                throw new UncheckedIOException(e);
            }
        });
    }
}

After

import static de.speexx.rethrow.ThrowingConsumer.rethrowUnchecked;

public class PathContainer implements Iterable<Path> {

    public void copyAllTo(final Path target) {
        forEach(rethrowUnchecked(source -> Files.copy(source, target)));
    }
}

That's all, folks.

Savings:

• ~25% code & statements
• 6 lines of code & statements