Added jgit own NonNull annotation type
The annotation is required for example in Repository case (patch follows), where almost all non-void return methods return Nullable except few returning NonNull. I definitely do not favor this style, but it is a nightmare to clients to guess if the null check is needed or not. Change-Id: Ib2a778a246c6d84b7c32565f54df2385b59f6498 Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
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/*
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* Copyright (C) 2015, Andrey Loskutov <loskutov@gmx.de>
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.annotations;
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import static java.lang.annotation.ElementType.FIELD;
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import static java.lang.annotation.ElementType.LOCAL_VARIABLE;
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import static java.lang.annotation.ElementType.METHOD;
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import static java.lang.annotation.ElementType.PARAMETER;
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import java.lang.annotation.Documented;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* JGit's replacement for the {@code javax.annotation.Nonnull}.
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* <p>
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* Denotes that a local variable, parameter, field, method return value expected
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* to be non {@code null}.
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*/
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@Documented
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@Retention(RetentionPolicy.CLASS)
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@Target({ FIELD, METHOD, PARAMETER, LOCAL_VARIABLE })
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public @interface NonNull {
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// marker annotation with no members
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}
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