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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 35437] New: - Ant 1.6.3 adds unusable -source 1.3 when specifying target="1.3" and extjavac JDK 1.3 when running under JDK 1.5
Date Mon, 20 Jun 2005 20:04:36 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=35437

           Summary: Ant 1.6.3 adds unusable -source 1.3 when specifying
                    target="1.3" and extjavac JDK 1.3 when running under JDK
                    1.5
           Product: Ant
           Version: 1.6.3
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: jglick@netbeans.org


For example (JAVA_HOME set to JDK 1.5):

tmp$ cat foo.xml
<project default="x">
    <target name="x">
        <echo file="X.java">public class X {}</echo>
        <javac executable="/space/jdk1.3/bin/javac" fork="yes" target="1.3"
includes="X.java" srcdir="."/>
    </target>
</project>
tmp$ /space/ant162/bin/ant -f foo.xml
Buildfile: foo.xml

x:
    [javac] Compiling 1 source file

BUILD SUCCESSFUL
Total time: 2 seconds
tmp$ /space/ant163/bin/ant -f foo.xml
Buildfile: foo.xml

x:
    [javac] Compiling 1 source file

    [javac]           WARNING

    [javac] The -source switch defaults to 1.5 in JDK 1.5.
    [javac] If you specify -target 1.3 you now must also specify -source 1.3.
    [javac] Ant will implicitly add -source 1.3 for you.  Please change your
build file.
    [javac] javac: invalid flag: -source
    [javac] Usage: javac <options> <source files>
    [javac] where possible options include:
    [javac]   -g                        Generate all debugging info
    [javac]   -g:none                   Generate no debugging info
    [javac]   -g:{lines,vars,source}    Generate only some debugging info
    [javac]   -O                        Optimize; may hinder debugging or
enlarge class file
    [javac]   -nowarn                   Generate no warnings
    [javac]   -verbose                  Output messages about what the compiler
is doing
    [javac]   -deprecation              Output source locations where deprecated
APIs are used
    [javac]   -classpath <path>         Specify where to find user class files
    [javac]   -sourcepath <path>        Specify where to find input source files
    [javac]   -bootclasspath <path>     Override location of bootstrap class files
    [javac]   -extdirs <dirs>           Override location of installed extensions
    [javac]   -d <directory>            Specify where to place generated class files
    [javac]   -encoding <encoding>      Specify character encoding used by
source files
    [javac]   -target <release>         Generate class files for specific VM version


BUILD FAILED
/tmp/foo.xml:4: Compile failed; see the compiler error output for details.

Total time: 1 second

(It works if JAVA_HOME is JDK 1.4.)

This breaks usage of JDK 1.3 for NetBeans projects (when running the IDE in JDK
1.5):

http://www.netbeans.org/issues/show_bug.cgi?id=60218

DefaultCompilerAdapter.java 1.54 is responsible: assumeJava15 returns true when
"extjavac" is the compiler and the JDK running Ant is 1.5. This may be wrong if
you are using 'executable'.

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