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From <Jan.Mate...@rzf.fin-nrw.de>
Subject AW: a problem compiling a Java 5 project with generics
Date Tue, 17 Oct 2006 15:00:22 GMT
Also no problems .... on WinXP, Ant 1.6.5 and Java 1.5.0_06-b05.

>setant 165
Apache Ant version 1.6.5 compiled on June 2 2005

>setjava 15
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing)

>del test\*.class

>ant -v
Project base dir set to: C:\tmp\ant-generics
    [javac] build.xml skipped - don't know how to handle it
    [javac] test\Base.java added as test/Base.class doesn't exist.
    [javac] test\Sub.java added as test/Sub.class doesn't exist.
    [javac] test\Test1.java added as test/Test1.class doesn't exist.
    [javac] test\Test2.java added as test/Test2.class doesn't exist.
    [javac] test\Test3.java added as test/Test3.class doesn't exist.
    [javac] Compiling 5 source files to C:\tmp\ant-generics
    [javac] Using modern compiler
    [javac] Compilation arguments:
    [javac] '-d'
    [javac] 'C:\tmp\ant-generics'
    [javac] '-classpath'
    [javac] ' LOT-OF-LIBS-FROM-ANT '
    [javac] '-sourcepath'
    [javac] 'C:\tmp\ant-generics'
    [javac] '-g:none'
    [javac]
    [javac] The ' characters around the executable and arguments are
    [javac] not part of the command.
    [javac] Files to be compiled:
    [javac]     C:\tmp\ant-generics\test\Base.java
    [javac]     C:\tmp\ant-generics\test\Sub.java
    [javac]     C:\tmp\ant-generics\test\Test1.java
    [javac]     C:\tmp\ant-generics\test\Test2.java
    [javac]     C:\tmp\ant-generics\test\Test3.java
BUILD SUCCESSFUL

>ant -v
NOTHING-TO-COMPILE

>touch test\Test3.java   (using Cygwin)

>ant -v
Project base dir set to: C:\tmp\ant-generics
    [javac] build.xml skipped - don't know how to handle it
    [javac] test\Base.class skipped - don't know how to handle it
    [javac] test\Base.java omitted as test/Base.class is up to date.
    [javac] test\Sub.class skipped - don't know how to handle it
    [javac] test\Sub.java omitted as test/Sub.class is up to date.
    [javac] test\Test1$Inner1.class skipped - don't know how to handle it
    [javac] test\Test1.class skipped - don't know how to handle it
    [javac] test\Test1.java omitted as test/Test1.class is up to date.
    [javac] test\Test2$Inner2.class skipped - don't know how to handle it
    [javac] test\Test2.class skipped - don't know how to handle it
    [javac] test\Test2.java omitted as test/Test2.class is up to date.
    [javac] test\Test3$Inner3.class skipped - don't know how to handle it
    [javac] test\Test3.class skipped - don't know how to handle it
    [javac] test\Test3.java added as test/Test3.class is outdated.
    [javac] Compiling 1 source file to C:\tmp\ant-generics
    [javac] Using modern compiler
    [javac] Compilation arguments:
    [javac] '-d'
    [javac] 'C:\tmp\ant-generics'
    [javac] '-classpath'
    [javac] ' LOT-OF-LIBS-FROM-ANT '
    [javac] '-sourcepath'
    [javac] 'C:\tmp\ant-generics'
    [javac] '-g:none'
    [javac]
    [javac] The ' characters around the executable and arguments are
    [javac] not part of the command.
    [javac] File to be compiled:
    [javac]     C:\tmp\ant-generics\test\Test3.java

BUILD SUCCESSFUL



build.xml:
<project>
    <javac srcdir="." destdir="."/>
</project>



Jan


>-----Urspr√ľngliche Nachricht-----
>Von: Peter Reilly [mailto:peter.kitt.reilly@gmail.com] 
>Gesendet: Dienstag, 17. Oktober 2006 16:44
>An: Ant Users List
>Betreff: Re: a problem compiling a Java 5 project with generics
>
>On 10/17/06, Jan.Materne@rzf.fin-nrw.de 
><Jan.Materne@rzf.fin-nrw.de> wrote:
>> Works for me with Ant 1.6.5 and 1.7beta2 and the given java 
>sources (with and without the commented line).
>>
>> <project>
>>     <delete dir="." includes="**/*.class"/>
>>     <javac srcdir="." destdir="."/>
>> </project>
>This works by itself, but touch Test3.java and run again.
>Peter
>>
>>
>>
>> Jan
>>
>> >-----Urspr√ľngliche Nachricht-----
>> >Von: Peter Reilly [mailto:peter.kitt.reilly@gmail.com]
>> >Gesendet: Dienstag, 17. Oktober 2006 11:39
>> >An: Ant Users List
>> >Betreff: Re: a problem compiling a Java 5 project with generics
>> >
>> >Can you enter a bugzilla report about this.
>> >It is very strange.
>> >
>> >I tried on the commandline:
>> >
>> >javac -target 1.5 -g -source  1.5 -sourcepath src -d build\classes 
>> >src\org\test\Test3.java
>> >
>> >which works fine - and looks very like the command used by ant.
>> >
>> >Peter
>> >
>> >
>> >On 10/17/06, Chavdar Botev <cbotev@gmail.com> wrote:
>> >> Hi
>> >>
>> >> For some reason, the mailing server included only the first 
>> >> attachment. Since this is the fourth or the fifth time I am
>> >trying to
>> >> send the java files, I give up. I'll inline them in the message.
>> >>
>> >> // src/test/Base.java
>> >> package test;
>> >> public class Base {}
>> >>
>> >>
>> >> // src/test/Sub.java
>> >> package test;
>> >> public class Sub extends Base {}
>> >>
>> >> // src/test/Test1.java
>> >> package test;
>> >> public class Test1<T extends Base> {
>> >>         public class Inner1 {
>> >>                 protected T v;
>> >>                 public Inner1(T v) {this.v = v;}
>> >>                 public T getV() {return this.v;}
>> >>         }
>> >>         public Inner1 getInner(T v) {return new Inner1(v);} }
>> >>
>> >> // src/test/Test2.java
>> >> package test;
>> >> public class Test2<T extends Base> extends Test1<T> {
>> >>         public class Inner2 extends Inner1 {
>> >>                 public Inner2(T v) {super(v);}
>> >>                 //public T getV() {return this.v;}
>> >>         }
>> >> }
>> >>
>> >> // src/test/Test3.java
>> >> package test;
>> >> public class Test3 extends Test2<Sub> {
>> >>         public class Inner3 extends Inner2 {
>> >>                 public Inner3(Sub v) {super(v);}
>> >>                 public Sub p() {return this.getV();}
>> >>         }
>> >>
>> >>         public Inner3 g() {
>> >>                 return new Inner3(new Sub());
>> >>         }
>> >> }
>> >>
>> >>
>> >> HTH,
>> >> Chavdar
>> >>
>> >>
>> >> On 10/16/06, Petar Tahchiev <paranoiabla@gmail.com> wrote:
>> >> > On 17/10/06, Chavdar Botev <cbotev@gmail.com> wrote:
>> >> > >
>> >> > > Hi!
>> >> > >
>> >> > > I've come accross the following problem trying to 
>compile Java 
>> >> > > 5 classes with generics using Ant 1.6.5. I've attached
>> >project with
>> >> > > sample Java classes and a build.xml file.
>> >> > >
>> >> > > NOTE: Please create a src/test subdirectory and save the
>> >attached
>> >> > > .java files into it. The mailing list server gave me a hard 
>> >> > > time acepting an email with the archived project files. :(
>> >> > >
>> >> > > A clean build of the above project works just fine 
>and compiles 
>> >> > > without a problem. If after that, I touch the Test3.java
>> >file the
>> >> > > build fails with the following error:
>> >> > >
>> >> > [javac] C:\src\appforge\test\src\test\Test3.java:5: 
>incompatible 
>> >> > types
>> >> > > [javac] found   : test.Base
>> >> > > [javac] required: test.Sub
>> >> > > [javac] public Sub p() {return this.getV();} [javac] 
>^ [javac] 
>> >> > > 1 error
>> >> >
>> >> >
>> >> > I must admit that this behaviour is really strange. I am
>> >interested
>> >> > in helping you but the problem is that I didn't receive 
>any .java 
>> >> > files. Please try to prvide them again.
>> >> >
>> >> >
>> >> > Initially, I thought that this was a problem with the Java
>> >compiler.
>> >> > > After touching Test3.java, I tried running javac manually:
>> >> > >
>> >> > > javac -sourcepath src -d bin -g -source 1.5 -target 1.5 
>> >> > > src\test\*.java
>> >> > >
>> >> > > It turned out that with the above command-line the project 
>> >> > > compiled OK. The project also compiles without a problem
>> >in Eclipse 3.2.1.
>> >> > >
>> >> > > Am I missing anything? It is my understanding that the
>> >build file
>> >> > > and the command line should produce the same results.
>> >> > >
>> >> > > Upon further experimentation, if I uncomment the method in 
>> >> > > Test2.java fixes the problem. Touching Test3.java does
>> >not break the build.
>> >> > >
>> >> > > Thanks,
>> >> > > Chavdar
>> >> > >
>> >> > >
>> >> > >
>> >------------------------------------------------------------------
>> >> > > --- To unsubscribe, e-mail: 
>user-unsubscribe@ant.apache.org For 
>> >> > > additional commands, e-mail: user-help@ant.apache.org
>> >> > >
>> >> > >
>> >> > >
>> >> >
>> >> >
>> >> > --
>> >> > Regards, Petar!
>> >> > Karlovo, Bulgaria.
>> >> >
>> >> >
>> >>
>> >> 
>-------------------------------------------------------------------
>> >> -- To unsubscribe, e-mail: user-unsubscribe@ant.apache.org For
>> >additional
>> >> commands, e-mail: user-help@ant.apache.org
>> >>
>> >>
>> >
>> 
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>> >additional commands, e-mail: user-help@ant.apache.org
>> >
>> >
>>
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>>
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