```
public class LangUtil
extends Object
```
Utilities to support the Java language.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`bothNullOrEqual(Object a, Object b)`
`static Collection`	`classesAndInterfaces(Class c)`
`static String`	`emptyStringIfNull(String s)`
`static Object`	`ifNotNull(Object o, Object alternative)`
`static Object`	`ifNull(Object o, Object alternative)`	Useful because an expression used to generate o need only be evaluated once.
`static boolean`	`isPrimitive(Class c)`
`static Object`	`newInstance(Class c)`
`static Class`	`toPrimitiveWrapperClass(Class primitiveClass)`

public static String emptyStringIfNull(String s)

public static Object ifNull(Object o,
                            Object alternative)

Useful because an expression used to generate o need only be evaluated once.

public static Object ifNotNull(Object o,
                               Object alternative)

public static Class toPrimitiveWrapperClass(Class primitiveClass)

public static boolean isPrimitive(Class c)

public static boolean bothNullOrEqual(Object a,
                                      Object b)

public static Object newInstance(Class c)

public static Collection classesAndInterfaces(Class c)

Class LangUtil