Java tutorial
package org.zalando.problem; /* * ? * Jackson-datatype-Problem * ?? * Copyright (C) 2015 - 2016 Zalando SE * ?? * 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. * ? */ import com.fasterxml.jackson.databind.util.StdConverter; import java.net.URI; import static org.zalando.problem.GenericProblems.DEFAULT_TYPE; final class ProblemTypeConverter extends StdConverter<URI, URI> { @Override public URI convert(final URI value) { return DEFAULT_TYPE.equals(value) ? null : value; } }