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From bugzi...@apache.org
Subject [Bug 2736] - Ant javac task has problems with dependencies
Date Mon, 23 Jul 2001 20:31:30 GMT
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=2736

*** shadow/2736	Mon Jul 23 04:15:24 2001
--- shadow/2736.tmp.9973	Mon Jul 23 13:31:30 2001
***************
*** 2,9 ****
  | 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              |
  +----------------------------------------------------------------------------+
--- 2,9 ----
  | Ant javac task has problems with dependencies                              |
  +----------------------------------------------------------------------------+
  |        Bug #: 2736                        Product: Ant                     |
! |       Status: RESOLVED                    Version: Nightly build           |
! |   Resolution: WORKSFORME                 Platform: All                     |
  |     Severity: Major                    OS/Version: All                     |
  |     Priority: Other                     Component: Core tasks              |
  +----------------------------------------------------------------------------+
***************
*** 167,170 ****
  the depend flag was also used in the build.xml file (see above)
  
  Best regards,
! Peter Van der Goten
--- 167,228 ----
  the depend flag was also used in the build.xml file (see above)
  
  Best regards,
! Peter Van der Goten
! 
! ------- Additional Comments From nico@apache.org  2001-07-23 13:31 -------
! See the description for tha javac task: 
! 
! "The source and destination directory will be recursively scanned for Java 
! source files to compile. Only Java files that have no corresponding class file 
! or where the class file is older than the java file will be compiled.
! 
! Note: Ant uses only the names of the source and class files to find the classes 
! that need a rebuild. It will not scan the source and therefor will have no 
! knowledge about nested classes, classes that are named different from the 
! source file and so on."
! 
! If you call jikes and pass only the names of the files that are out of date -
! depend will not help you: 
! 
! "C:\temp\bug2736>type src\be\alcatel\test\TestConstsITF.java
! package be.alcatel.test;
! 
! public interface TestConstsITF{
!    public static final int const1 = 11;
! }
! 
! C:\temp\bug2736>jikes -depend -sourcepath %SRCDIR% -classpath .;%CLASSDIR%;c:\jd
! k131\jre\lib\rt.jar -d %CLASSDIR% %SRCDIR%\be\alcatel\test\TestConstsITF.java
! 
! C:\temp\bug2736>java -cp classes be.alcatel.test.Test
! TestConstsITF.const1        = 10
! const1                      = 10
! AnOtherTestConstsITF.const2 = 10
! const2                      = 10"
! 
! Possible Solutions include: 
! 
! - Modify Ant to always pass all java-files it finds to the compiler (results in 
! recompile everything)
! - Delete the target files before compiling (results in recompile everything)
! - Use the depend-task (find dependencies, delete files which should be 
! recompiled although they are up-to-date (from a file-time perspective) and use 
! javac to compile only missing/old files) 
! 
! This: 
! 
! <?xml version="1.0"?>
! <project default="main">
!   <target name="main">
!     <depend srcdir="src"
!             destdir="classes"
!             closure="true"/>    
!     <javac srcdir="src"
!            destdir="classes"/>
!   </target>
! </project>
! 
! should work for you. 
! 
! Nothing we can fix here, we could just slowdown ant. You are invited to come to 
! ant-user if you have further questions regarding the proposed solution. 

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