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From "Scot P. Floess" <flo...@mindspring.com>
Subject Re: a problem compiling a Java 5 project with generics
Date Tue, 17 Oct 2006 15:01:11 GMT
It fails for me too...

There must be some issue with using inner classes...I can't figure this 
one out...


Peter Reilly wrote:
> 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.
>> >> >
>> >> >
>> >>
>> >> ---------------------------------------------------------------------
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>> >additional
>> >> commands, e-mail: user-help@ant.apache.org
>> >>
>> >>
>> >
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>> >
>> >
>>
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>>
>
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>

-- 
Scot P. Floess
27 Lake Royale
Louisburg, NC  27549

252-478-8087 (Home)
919-754-4592 (Work)

Chief Architect JPlate  http://sourceforge.net/projects/jplate
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