Java Utililty Methods Class New Instance

try {
    return Class.forName(className).newInstance();
} catch (Exception e) {
    throw new RuntimeException("new instance fail : " + e.getMessage(), e);

return newInstance(className, new Object[0]);

return newInstance((Class<T>) Class.forName(className));

Class<?> clazz;
try {
    clazz = Class.forName(className);
    return newInstance(clazz);
} catch (ClassNotFoundException e) {
    throw new RuntimeException(e);

Object result = null;
Class<?> type = loadClass(className);
result = (type != null ? type.newInstance() : null);
return result;

if (className == null) {
    return null;
try {
    Class<?> clazz = Class.forName(className);
    if (instanceClazz.isAssignableFrom(clazz)) {
        return (T) clazz.getConstructor().newInstance();
    } else {
...

Class<?> clazz = Class.forName(className);
Object instance = clazz.newInstance();
if ((instance != null) && !cls.isAssignableFrom(instance.getClass()))
    throw new IllegalArgumentException(className + " is not an instanceof " + cls.getName());
return instance;

Class<T> clazz = (Class<T>) loadClass(className, context, false);
if (clazz == null)
    throw new Exception(className + " not found in the classpath.");
return clazz.newInstance();

return castTo.cast(newInstance(forName(className)));

Class clazz = Class.forName(className);
if (parmsCls == null) {
    return clazz.newInstance();
} else {
    Constructor constr = clazz.getConstructor(parmsCls);
    return constr.newInstance(parms);