TraceStateBuilder (all 0.15.0 API)

```
public interface TraceStateBuilder
```
A builder of TraceState. This implementation does full validation of the keys and values in the entries, and will ignore any entries that do not conform to the W3C specification.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`TraceState`	`build()`	Builds a TraceState by adding the entries to the parent in front of the key-value pairs list and removing duplicate entries.
`TraceStateBuilder`	`remove(String key)`	Removes the `Entry` that has the given `key` if it is present.
`TraceStateBuilder`	`set(String key, String value)`	Adds or updates the `Entry` that has the given `key` if it is present.

- Method Detail
  - set
```
TraceStateBuilder set(String key,
                      String value)
```
    Adds or updates the Entry that has the given key if it is present. The new Entry will always be added in the front of the list of entries.
    
    Parameters:
    
    key - the key for the Entry to be added.
    
    value - the value for the Entry to be added.
    
    Returns:
    
    this.
  - remove
```
TraceStateBuilder remove(String key)
```
    Removes the Entry that has the given key if it is present.
    
    Parameters:
    
    key - the key for the Entry to be removed.
    
    Returns:
    
    this.
  - build
```
TraceState build()
```
    Builds a TraceState by adding the entries to the parent in front of the key-value pairs list and removing duplicate entries.
    
    Returns:
    
    a TraceState with the new entries.