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From: Jhair Tocancipa Triana <jhair_tocancipa@gmx.net>
Subject: ResourceUtils.selectOutOfDateSources: ant rebuilds class file again?
Date: Wed, 28 Jun 2006 16:38:17 +0200
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[My apologies if this question is more appropiate for the users
list. I tested the following with sources from the SVN repository].

Please consider the test case below:

http://people.freenet.de/jtocancipa/ant_test_case.tgz

$ tar tvzf ant_test_case.tgz 
-rw-r--r-- user/users 257 2006-06-28 15:25:01 build.xml
drwxr-xr-x user/users   0 2006-06-28 15:40:48 src/com/
drwxr-xr-x user/users   0 2006-06-28 15:40:56 src/com/icon/
drwxr-xr-x user/users   0 2006-06-28 15:37:07 src/com/icon/common/
-rw-r--r-- user/users 149 2006-06-28 15:35:42 src/com/icon/common/TestAnt.java

When I run ant over this dummy example more than once, the
classes/com/icon/common/TestAnt.class is generated everytime again --
it shouldn't if the TestAnt.java file hasn't been modified.

ant -verbose says the following:

compile:
    [javac] TestAnt.java added as TestAnt.class doesn't exist.

The file classes/com/icon/common/TestAnt.class exists though.

I don't know much about ant internals, but I am interested to
learn. So I tried to debug this to see why this was happening. I set a
breakpoint in org.apache.tools.ant.util.ResourceUtils:174.

main[1] print granularity
 granularity = 1000
main[1] print sr
 sr = "TestAnt.java"
main[1] print r
 r = "<directory>/classes/TestAnt.class"

Since <directory>/classes/TestAnt.class does not exist, the
TestAnt.java file is compiled again.

On the other hand the file

<directory>/classes/com/icon/common/Test.class

*does* exist.

Why does ant look for the .class file in the "wrong" directory
(i.e. classes instead classes/com/icon/common)?

Thanks in advance for your help,

-- 
--Jhair


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