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Date: 27 Mar 2002 19:03:13 -0000
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From: bugzilla@apache.org
To: ant-dev@jakarta.apache.org
Cc: 
Subject: DO NOT REPLY [Bug 7529] New:  -
    depend task can't handle nested/inner classes with closure="yes"
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=7529

depend task can't handle nested/inner classes with closure="yes"

           Summary: depend task can't handle nested/inner classes with
                    closure="yes"
           Product: Ant
           Version: 1.4
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Optional Tasks
        AssignedTo: ant-dev@jakarta.apache.org
        ReportedBy: dsb@smart.net


It seems that the depend task can't handle nested or inner classes
when the closure attribute is set to "yes".

The symptom is that it deletes the class files for the outer class
and all inner classes even if the class files are all newer than
the source file.
(Also, note how the 


I'm running on Window2000.  The command output below is from CygWin bash.


Here's my source file, <root>/src/test/Outer.class:

package test;

class Outer
{

    static class Inner
    {
    } // class Inner


} // class Outer


Here's my build.xml file:

<project default="default">

  <property name="devRoot" value="./" />

  <property name="source" value="${devRoot}src" 
  	description=
	"Java source root directory, relative to base, no slash(??) " 
	/>


  <property name="buildRoot" value="${devRoot}build/" 
  	description=
	"deletable build root directory, relative to base, with slash(??)"
	/>


  <property name="obj" value="${buildRoot}classes" />


  <path id="path.compile">
    <pathelement location="${obj}" />
  </path>



  <target name="compile">
    <mkdir dir="${obj}" />


    <depend
	srcdir="${source}" 
	classpathref="path.compile"
	destdir="${obj}"
	closure="yes"
	dump="yes"
	/>
    <echo message="" />
    <javac 
	srcdir="${source}" 
	classpathref="path.compile"
	destdir="${obj}"
	debug="yes"
	verbose="yes"
        >
    </javac>
  </target>


  <target name="default" 
  	depends="compile">
  </target>

  <target name="clean">
     <delete dir="${buildRoot}" />
  </target>



</project>


Below is the file time status and the (trimmed) output of running Ant in debug mode.

Note how the depend tasks deletes Outer.class and Outer$Inner.class.

Also, note how even though the "ls" command's "-t" option shows that 
Outer$Inner.class is not older than Outer.class, depend reports:

    Class test.Outer$Inner is out of date with respect to
C:\daniel\work\bugtest\build\classes\test\Outer.class

One theory for the cause of the problem is that file times are being compared
with "<" instead of "<=", or maybe vice versa (assuming that the file dates
are indeed equal, as opposed to just truncated to whole seconds by ls).

Another theory is that depend doesn't account for inner classes.  If both
class file are newer than the source file, it probably shouldn't care if
one is newer than the other (or if they have the same time and neither is
neither than the other).  




cd c:/daniel/work/bugtest; ls -ltr `find -name "*Outer*"`; ant -find build.xml
-emacs -verbose compile -debug
-rw-r--r--    1 Administ None          110 Mar 27 13:17 ./src/test/Outer.java
-rw-r--r--    1 Administ None          311 Mar 27 13:21
./build/classes/test/Outer.class
-rw-r--r--    1 Administ None          317 Mar 27 13:21
./build/classes/test/Outer$Inner.class
Ant version 1.4.1 compiled on October 11 2001
Ant version 1.4.1 compiled on October 11 2001
Searching for build.xml ...
Buildfile: c:\daniel\work\bugtest\build.xml
Setting project property: ant.java.version -> 1.4
Detected Java version: 1.4 in: c:\tools\j2sdk1.4.0\jre
Detected OS: Windows 2000
 +User task: tar     org.apache.tools.ant.taskdefs.Tar
...
 +User datatype: fileset     org.apache.tools.ant.types.FileSet
...
Setting project property: java.runtime.name -> Java(TM) 2 Runtime Environment,
Standard Edition
...
Setting project property: basedir -> C:\daniel\work\bugtest
Project base dir set to: C:\daniel\work\bugtest
   +Task: property
Setting project property: devRoot -> ./
   +Task: property
Setting project property: source -> ./src
   +Task: property
Setting project property: buildRoot -> ./build/
   +Task: property
Setting project property: obj -> ./build/classes
   +DataType: path
Adding reference: path.compile -> 
 +Target: compile
   +Task: mkdir
   +Task: depend
   +Task: echo
   +Task: javac
 +Target: default
 +Target: clean
   +Task: delete
Build sequence for target `compile' is [compile]
Complete build sequence is [compile, default, clean]

compile:
Adding class info for test.Outer$Inner
Adding class info for test.Outer
Resource test/Outer$Inner.class loaded from ant loader
Class test.Outer depends on
C:\daniel\work\bugtest\build\classes\test\Outer$Inner.class due to test.Outer$Inner
Resource test/Outer.class loaded from ant loader
Class test.Outer$Inner depends on
C:\daniel\work\bugtest\build\classes\test\Outer.class due to test.Outer
Reverse Dependency Dump for 3 classes:
 Class test.Outer affects:
    test.Outer$Inner in C:\daniel\work\bugtest\build\classes\test\Outer$Inner.class
 Class java.lang.Object affects:
    test.Outer in C:\daniel\work\bugtest\build\classes\test\Outer.class
    test.Outer$Inner in C:\daniel\work\bugtest\build\classes\test\Outer$Inner.class
 Class test.Outer$Inner affects:
    test.Outer in C:\daniel\work\bugtest\build\classes\test\Outer.class
Classpath file dependencies (Forward):
 Class test.Outer depends on:
    C:\daniel\work\bugtest\build\classes\test\Outer$Inner.class
 Class test.Outer$Inner depends on:
    C:\daniel\work\bugtest\build\classes\test\Outer.class
FileSet: Setup file scanner in dir C:\daniel\work\bugtest\src with patternSet{
includes: [] excludes: [] }
Class test.Outer$Inner is out of date with respect to
C:\daniel\work\bugtest\build\classes\test\Outer.class
Deleting file C:\daniel\work\bugtest\build\classes\test\Outer.class since
test.Outer$Inner out of date
Deleting file C:\daniel\work\bugtest\build\classes\test\Outer$Inner.class since
test.Outer out of date
Deleted 2 out of date files in 0 seconds

FileSet: Setup file scanner in dir C:\daniel\work\bugtest\src with patternSet{
includes: [] excludes: [] }
test\Outer.java added as C:\daniel\work\bugtest\build\classes\test\Outer.class
doesn't exist.
Compiling 1 source file to C:\daniel\work\bugtest\build\classes
Using modern compiler
Compilation args: -d C:\daniel\work\bugtest\build\classes -classpath
C:\daniel\work\bugtest\build\classes;C:\tools\jakarta-ant-1.4.1\lib\junit.jar;C:\tools\jakarta-ant-1.4.1\lib\jaxp.jar;C:\tools\jakarta-ant-1.4.1\lib\jakarta-ant-1.4.1-optional.jar;C:\tools\jakarta-ant-1.4.1\lib\crimson.jar;C:\tools\jakarta-ant-1.4.1\lib\ant.jar;C:\tools\j2sdk1.4.0\lib\tools.jar
-sourcepath C:\daniel\work\bugtest\src -g -verbose
File to be compiled:
    C:\daniel\work\bugtest\src\test\Outer.java

[parsing started C:\daniel\work\bugtest\src\test\Outer.java]
[parsing completed 50ms]
[checking test.Outer]
[loading c:\tools\j2sdk1.4.0\jre\lib\rt.jar(java/lang/Object.class)]
[wrote C:\daniel\work\bugtest\build\classes\test\Outer$Inner.class]
[wrote C:\daniel\work\bugtest\build\classes\test\Outer.class]
[total 511ms]

BUILD SUCCESSFUL

Total time: 1 second

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