Java Assert Not Null assertNotNull(final Object object, final String message)

Description

Check that an object is null and throw NullPointerException in the case.

License

Apache License

Parameter

Parameter	Description
object	an object to be checked
message	message to be used as the exception message

Exception

Parameter	Description
NullPointerException	it will be thrown if the object is null

Declaration

public static void assertNotNull(final Object object,
        final String message) 

Method Source Code

//package com.java2s;
/* /*w w w.j  a  va2  s  . c  o  m*/
 * Copyright 2014 Igor Maznitsa (http://www.igormaznitsa.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.
 */

public class Main {
    /**
     * Check that an object is null and throw NullPointerException in the case.
     *
     * @param object an object to be checked
     * @param message message to be used as the exception message
     * @throws NullPointerException it will be thrown if the object is null
     */
    public static void assertNotNull(final Object object,
            final String message) {
        if (object == null) {
            throw new NullPointerException(
                    message == null ? "Object is null" : message);
        }
    }
}

Related

1. assertInstanceOfNotNull(Object obj, Class expClass)
2. assertNotNull(final Object o, final String message)
3. assertNotNull(final Object obj, final String msg)
4. assertNotNull(final Object obj, final String reference)
5. assertNotNull(final Object object, final String message)
6. assertNotNull(final Object param, final String name)
7. assertNotNull(final Object value, final String name)
8. assertNotNull(final Object... objects)
9. assertNotNull(final String message, final Object obj)