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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 14:33:57 GMT
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>



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.
>> >
>> >
>>
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>>
>>
>
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