/*
* Copyright (c), Data Geekery GmbH, contact@datageekery.com
*
* Licensed 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.
*/
package org.jdbi.v3.core.internal.exceptions;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.lang.reflect.InvocationTargetException;
import javax.annotation.CheckReturnValue;
import javax.annotation.Nonnull;
import org.jdbi.v3.core.internal.UtilityClassException;
public class Sneaky {
private Sneaky() {
throw new UtilityClassException();
}
Will always throw an exception, so the caller should also always throw the dummy return value to make sure the control flow remains clear.
/**
* Will <b>always</b> throw an exception, so the caller should also always throw the dummy return value to make sure the control flow remains clear.
*/
@CheckReturnValue
@Nonnull
public static DummyException throwAnyway(Throwable t) {
if (t instanceof Error) {
throw (Error) t;
}
if (t instanceof RuntimeException) {
throw (RuntimeException) t;
}
if (t instanceof IOException) {
throw new UncheckedIOException((IOException) t);
}
if (t instanceof InterruptedException) {
Thread.currentThread().interrupt();
}
if (t instanceof InvocationTargetException) {
throw throwAnyway(t.getCause());
}
throwEvadingChecks(t);
// never reached
return null;
}
@SuppressWarnings("unchecked")
private static <E extends Throwable> void throwEvadingChecks(Throwable throwable) throws E {
throw (E) throwable;
}
}