WireTestUtil.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.tika.pipes.core.serialization;

final class WireTestUtil {

    private WireTestUtil() {
    }

    /** Root-cause message, for asserting on rejections Jackson may wrap. */
    static String root(Throwable t) {
        Throwable r = t;
        while (r.getCause() != null && r.getCause() != r) {
            r = r.getCause();
        }
        return String.valueOf(r.getMessage());
    }
}