[jira] [Created] (TAP5-1668) Unexpected behaviour setting default of String parameter to ""

["Geoff Callender (JIRA)" <ji...@apache.org>]

Unexpected behaviour setting default of String parameter to "" 
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                 Key: TAP5-1668
                 URL: https://issues.apache.org/jira/browse/TAP5-1668
             Project: Tapestry 5
          Issue Type: Bug
    Affects Versions: 5.2.6
            Reporter: Geoff Callender
            Priority: Minor


After reading the Parameter javadoc I expected these 3 to be equivalent.

	@Parameter
	private String tab;

	@Parameter(value = "")
	private String tab;

	@Parameter
	private String tab = "";

but they are not: if the parameter is not bound, then in the first two its value will be null, and in the third one it will be "".

The javadoc is http://tapestry.apache.org/tapestry5.2-dev/apidocs/org/apache/tapestry5/annotations/Parameter.html .

Is the behaviour wrong or does the javadoc need to be clearer?


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