| Package | Description | 
|---|---|
| java.lang | Provides classes that are fundamental to the design of the Java
 programming language. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | InheritableThreadLocal<T>This class extends ThreadLocal to provide inheritance of values
 from parent thread to child thread: when a child thread is created, the
 child receives initial values for all inheritable thread-local variables
 for which the parent has values. | 
| Modifier and Type | Method and Description | 
|---|---|
| static <S> ThreadLocal<S> | ThreadLocal. withInitial(Supplier<? extends S> supplier)Creates a thread local variable. | 
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