public ContextPropertiesCache put(String key, String value) {
    checkArgument(key != null, "Key of context property must not be null");
    checkArgument(value != null, "Value of context property must not be null");
    props.put(key, value);
    return this;
  }
public ContextPropertiesCache put ( String key , String value ) { checkArgument ( key != null , "Key of context property must not be null" ) ; checkArgument ( value != null , "Value of context property must not be null" ) ; props . put ( key , value ) ; return this ; }
Value is overridden if the key was already stored.
@throws IllegalArgumentException if key is null
@throws IllegalArgumentException if value is null
@since 6.1