http://nagoya.apache.org/bugzilla/show_bug.cgi?id=2736
*** shadow/2736 Mon Jul 23 04:15:24 2001
--- shadow/2736.tmp.2191 Mon Jul 23 04:15:24 2001
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*** 0 ****
--- 1,170 ----
+ +============================================================================+
+ | Ant javac task has problems with dependencies |
+ +----------------------------------------------------------------------------+
+ | Bug #: 2736 Product: Ant |
+ | Status: NEW Version: Nightly build |
+ | Resolution: Platform: All |
+ | Severity: Major OS/Version: All |
+ | Priority: Other Component: Core tasks |
+ +----------------------------------------------------------------------------+
+ | Assigned To: [EMAIL PROTECTED] |
+ | Reported By: [EMAIL PROTECTED] |
+ +----------------------------------------------------------------------------+
+ | URL: |
+ +============================================================================+
+ | DESCRIPTION |
+ This bug was found in Ant1.3 and
+ also found in the latest nightly build of ant (2001-07-22)
+ file: jakarta-ant-1.4alpha-bin.zip
+ I thid the tests on NT for the 1.4aplha release and found the
+ bug on unix for the 1.3 release.
+
+ In our project we noticed some problems with depencies concerning interfaces
+ used to specify constants.
+ It seemed that the constants are inlined in the .class files and these .class
+ files which use the contsants where NOT recompiled when a constant was
changed.
+
+ To test this I made a simple application which uses two other .java files
+ in which only public final consts where defined in an interface.
+ (in the manner we use in our project)
+
+ The bug could be reproduced with ant but NOT with javac or jikes used on
+ there own.
+
+ The build .xml file I used
+ <project name="CompTest" default="compile">
+
+ <property name="build.compiler" value="jikes"/>
+ <property name="package" value="be/alcatel"/>
+ <property name="src" value="${basedir}/Src"/>
+ <property name="logfile" value="${basedir}/build.log"/>
+ <property name="classes" value="${basedir}/Classes"/>
+ <property name="show" value="true"/>
+
+ <!-- ******* -->
+ <!-- Compile -->
+ <!-- ******* -->
+ <target name="compile">
+ <javac srcdir="${src}"
+ destdir="${classes}"
+ classpath="${classpath}"
+ includes="${package}/**/*.java"
+ verbose="${show}"
+ failonerror="false"
+ depend="true"
+ debug="off" optimize="off" deprecation="off"/>
+ </target>
+
+ </project>
+ the java files:
+ //AnOtherTestConstsITF.java
+ package be.alcatel.another;
+
+ public interface AnOtherTestConstsITF{
+ public static final String const2 = "2";
+ }
+ //TestConstsITF
+ package be.alcatel.test;
+
+ public interface TestConstsITF{
+ public static final int const1 = 1;
+ }
+ //Test.java
+ package be.alcatel.test;
+
+ import be.alcatel.another.*;
+
+ public class Test implements TestConstsITF, AnOtherTestConstsITF{
+
+ public void printConsts(){
+ System.err.println("TestConstsITF.const1 = "+TestConstsITF.const1);
+ System.err.println("const1 = "+const1);
+ System.err.println("AnOtherTestConstsITF.const2 =
+ "+AnOtherTestConstsITF.const2);
+ System.err.println("const2 = "+const2);
+ }
+
+ public static void main (String[] args){
+ Test t = new Test();
+ t.printConsts();
+ }
+ }
+
+ The project direcotory structure:
+ Projroot
+ Src
+ be
+ alcatel
+ test
+ Test.java
+ TestConstsITF.java
+ another
+ AnOtherTestConstsITF.java
+ Classes
+ be
+ alcatel
+ test
+ Test.class
+ TestConstsITF.class
+ another
+ AnOtherTestConstsITF.class
+
+ Build.bat used to build this example
+
+ @echo off
+ @setlocal
+ set PSD_VOB=D:\Projects\comptest
+ set PF_TOOLS=F:\PFTools
+
+ set JAVA_HOME=%PF_TOOLS%\j2sdk1.3.1-win
+ set J2EE_HOME=%PF_TOOLS%\bea\wlserver6.0sp1
+ set BUILDFILE=D:\Projects\comptest\build.xml
+
+ rem set ANT_HOME=%PF_TOOLS%\jakarta-ant1.3
+ set ANT_HOME=D:\jakarta-ant-1.4alpha
+
+ set CPATH=%JAVA_HOME%\lib\tools.jar
+ set CPATH=%CPATH%;%J2EE_HOME%\lib\weblogic.jar
+ set CPATH=%CPATH%;%ANT_HOME%\lib\ant.jar
+ rem set CPATH=%CPATH%;%ANT_HOME%\lib\jakarta-ant-1.3-optional.jar
+ set CPATH=%CPATH%;%ANT_HOME%\lib\jakarta-ant-1.4alpha-optional.jar
+ set CPATH=%CPATH%;%ANT_HOME%\lib\parser.jar
+ set CPATH=%CPATH%;%ANT_HOME%\lib\crimson.jar
+ set CPATH=%CPATH%;%ANT_HOME%\lib\jaxp.jar
+ set CPATH=%CPATH%;%PF_VOB%\build\ant\lib\PFant.jar
+
+ %JAVA_HOME%\bin\java -classpath %CPATH% -Dant.home="%ANT_HOME%"
+ org.apache.tools.ant.Main -buildfile %BUILDFILE% -Dbasedir=%PSD_VOB%
+ -Dlibdir=tmp -Dtools=%PF_TOOLS% -quiet %1 %2 %3 %4 %5 %6 %7 %8 %9
+
+ @endlocal
+
+ When the project is rebuild using an adapted version of
+ AnOtherTestConstsITF.java
+ The only class file that is new will be AnOtherTestConstsITF.class
+ Because the constats of this class where inlinde by the compiler in Test.class
+ the Test.class file should have been recompiled.
+ In fact this is done by the standard javac tool or jikes (without using ant)
+
+ If make.bat is used all is well (doesn't use ant)
+ @echo off
+
+ rem make.bat for the test
+
+ set PRJDIR=D:\Projects\comptest
+ set JDK_HOME=c:\jdk1.3.0_02\bin
+ set CLASSDIR=%PRJDIR%\Classes
+ set SRCDIR=%PRJDIR%\Src
+ set JARDIR=%PRJDIR%\jar
+
+
+ @echo compiling...
+ start /b /wait /d%PRJDIR% jikes -depend -sourcepath %SRCDIR% -classpath
+ .;%CLASSDIR%;c:\jdk1.3.0_02\jre\lib\rt.jar -d %CLASSDIR%
+ %SRCDIR%\be\alcatel\test\*.java
+
+ notice that i use -depend (but it will also work without it)
+ the depend flag was also used in the build.xml file (see above)
+
+ Best regards,
+ Peter Van der Goten
