DO NOT REPLY [Bug 33240] New: - propertyfile date operation results in invalid date

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http://issues.apache.org/bugzilla/show_bug.cgi?id=33240

           Summary: propertyfile date operation results in invalid date
           Product: Ant
           Version: 1.6.2
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Optional Tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: pbunce@momentumsi.com


Using propertyfile for date operation yields invalid dates.
I am using a temporary (created and deleted each time) properties file for 
verifying default dates in testing (e.g. departure date should default to one 
week from today), however the properties resulting from date operation (+) 
gives invalid dates. Today is 01/25/2005 (), so one week from now should be 
02/01/2005, but the entry ends up as 02/32/2005. The month gets incremented due 
to the wrap-over into Feb, but the day is just 25 + 7, instead of mod(#days-in-
orig-month). Just in case, I tried adding 1 week and adding 7 days, same result 
(as expected).
===========================================
Sample build file:
===========================================
<project name="dateTest" default="main" basedir=".">
	<property name="test.props" value="tmp.properties"/>

	<propertyfile
	    file="${test.props}"
	    comment="My properties">
	  <entry  key="default.now"
	      type="date" default="now" pattern="MM/DD/yyyy" /> 
	  <entry  key="default.departure.date.week"
	      type="date" default="now" pattern="MM/DD/yyyy"
	      operation="+" value="1" unit="week"/> 
	  <entry  key="default.departure.date.day"
	      type="date" default="now" pattern="MM/DD/yyyy"
	      operation="+" value="7" unit="day"/> 
	</propertyfile>

	<target name="main" depends="echoTestProps,cleanTestProps"/>

  	<target name="echoTestProps" description="echo the test.properties 
files">
		<property file="${test.props}"/>
         <echo message="default.now=${default.now}"/>
         <echo 
message="default.departure.date.week=${default.departure.date.week}"/>
         <echo 
message="default.departure.date.day=${default.departure.date.day}"/>
	</target>

  	<target name="cleanTestProps" description="cleans the test.properties 
files">
		<delete file="${test.props}"/>
	</target>

</project>
===========================================
Sample output:
===========================================
Buildfile: C:\Projects\SkyLink\dateTest.xml
[propertyfile] Creating new property file: C:\Projects\SkyLink\tmp.properties
echoTestProps:
     [echo] default.now=01/25/2005
     [echo] default.departure.date.week=02/32/2005
     [echo] default.departure.date.day=02/32/2005
cleanTestProps:
   [delete] Deleting: C:\Projects\SkyLink\tmp.properties
main:
BUILD SUCCESSFUL
Total time: 281 milliseconds
===========================================
Regards,
-Phil
pbunce@momentumsi.com

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