Java Assert Not Null assertNotNull(T object, String fieldName)

Description

Asserts that the given object is non-null and returns it.

License

Amazon Software License

Parameter

Parameter	Description
object	Object to assert on
fieldName	Field name to display in exception message if null
T	the type of object.

Return

Object if non null

Declaration

public static <T> T assertNotNull(T object, String fieldName) 

Method Source Code

//package com.java2s;
//License from project: Amazon Software License 

public class Main {
    /**/*from w w  w.j a v  a  2 s  .co m*/
     * Asserts that the given object is non-null and returns it.
     *
     * @param object Object to assert on
     * @param fieldName Field name to display in exception message if null
     * @param <T> the type of object.
     * @return Object if non null
     */
    public static <T> T assertNotNull(T object, String fieldName) {
        if (object == null) {
            throw new IllegalArgumentException(String.format("%s cannot be null", fieldName));
        }
        return object;
    }
}

Related

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2. assertNotNull(StringBuilder buffer)
3. assertNotNull(T exception, Object... objects)
4. assertNotNull(T o)
5. assertNotNull(T obj)
6. assertNotNull(T value, String message)
7. assertNotNullArg(Object value, String argName)
8. assertNotNullArgument(Object obj, String argName)
9. assertNotNullEightBytes(byte[] bytes)