/**
 *  Copyright 2005-2015 Red Hat, Inc.
 *
 *  Red Hat 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 io.fabric8.docker.api;

import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;

/**
 */
public class JsonHelper {
    private static ObjectMapper objectMapper = new ObjectMapper();

    public static <T> T fromJson(String json, Class<T> clazz) throws IOException {
        return objectMapper.reader(clazz).readValue(json);
    }

    public static String toJson(Object object) throws IOException {
        return objectMapper.writer().writeValueAsString(object);
    }
}

/**
 *  Copyright 2005-2015 Red Hat, Inc.
 *
 *  Red Hat 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 io.fabric8.docker.api;

import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;

/**
 */
public class JsonHelper {
    private static ObjectMapper objectMapper = new ObjectMapper();

    public static <T> T fromJson(String json, Class<T> clazz) throws IOException {
        return objectMapper.readerFor(clazz).readValue(json);
    }

    public static String toJson(Object object) throws IOException {
        return objectMapper.writer().writeValueAsString(object);
    }
}

Replace Deprecated Jackson method reader in JsonHelper class