Java Utililty Methods Assert Not Null

List of utility methods to do Assert Not Null

  1. HOME
  2. Java
  3. A
  4. Assert Not Null

Description

The list of methods to do Assert Not Null are organized into topic(s).

Method

TassertNotNull(T obj)
assert Not Null 
if (obj == null) {
    throw new NullPointerException();
return obj;
TassertNotNull(T object, String fieldName)
Asserts that the given object is non-null and returns it. 
if (object == null) {
    throw new IllegalArgumentException(String.format("%s cannot be null", fieldName));
return object;
TassertNotNull(T value, String message)
assert Not Null 
if (value == null) {
    throw new IllegalArgumentException(message);
return value;
voidassertNotNullArg(Object value, String argName)
assert Not Null Arg 
if (value == null)
    throw new IllegalArgumentException(argName + " cannot be null");
voidassertNotNullArgument(Object obj, String argName)
assert Not Null Argument 
if (obj == null) {
    throw new IllegalArgumentException("Null Object specified as argument. argumentName[" + argName + "]");
if (obj instanceof String) {
    assertQualifiedString((String) obj, argName);
voidassertNotNullEightBytes(byte[] bytes)
assert Not Null Eight Bytes 
if (bytes == null) {
    throw new IllegalArgumentException("Expected 8 bytes, but got null.");
if (bytes.length != 8) {
    throw new IllegalArgumentException(String.format("Expected 8 bytes, but got: %d bytes.", bytes.length));
voidassertNotNullNotEmpty(String obj, String paramName)
assert Not Null Not Empty 
assertNotNull(obj, paramName);
if (obj.isEmpty()) {
    throw new IllegalArgumentException(paramName + " cannot be empty");
voidassertNotNullOrThrowException(final Object... objects)
assert Not Null Or Throw Exception 
if (!assertNotNull(objects))
    throw new IllegalArgumentException("Cannot be null !");
voidassertObjectNotNull(final Object object)
assert Object Not Null 
assert object != null;
voidassertObjectNotNull(Object o, String name)
assert Object Not Null 
if (o == null) {
    throw new NullPointerException(name);