Java8のラムダ式でチェック例外を投げられないのを何とかするやつ

UnsafeLambdaUtil.java

import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;

final public class UnsafeLambdaUtil {
	
	private UnsafeLambdaUtil(){}
	
	public static class ExceptionWrapper extends RuntimeException {
		private static final long serialVersionUID = 1L;
		public ExceptionWrapper(Exception e){
			super(e);
		}
	}

	public static interface UnsafeRunnable{
		public void run() throws Exception;
	}
	
	public static Runnable wrapr(UnsafeRunnable target){
		return (() -> {
			try {
				target.run();
			} catch (Exception e) {
				throw wrapException(e);
			}
		});
	}

	public static interface UnsafeConsumer<T>{
		public void accept(T t) throws Exception;
	}
	
	public static <T> Consumer<T> wrapc(UnsafeConsumer<T> target){
		return (param -> {
			try {
				target.accept(param);
			} catch (Exception e) {
				throw wrapException(e);
			}
		});
	}

	public static interface UnsafeSupplier<T>{
		public T get() throws Exception;
	}

	public static <T> Supplier<T> wraps(UnsafeSupplier<T> target){
		return (() -> {
			try {
				return target.get();
			} catch (Exception e) {
				throw wrapException(e);
			}
		});
	}

	public static interface UnsafeFunction<T,R>{
		public R apply(T arg) throws Exception;
	}

	public static <T,R> Function<T,R> wrapf(UnsafeFunction<T,R> target){
		return (arg -> {
			try {
				return target.apply(arg);
			} catch (Exception e) {
				throw wrapException(e);
			}
		});
	}
	
	public static RuntimeException wrapException(Exception e){
		return new ExceptionWrapper(e);
	}
}

課題

• ToIntFunctionなどのプリミティブ関数型には対応してないのでmapInt()などの引数には使えない。
• 例外処理が型安全じゃない
• ダサい