[kepler-dev] Java 1.5 for Kepler

Carlos Rueda carueda at ucdavis.edu
Thu Sep 27 12:16:59 PDT 2007

Hello Dan, Ilkay,

Right, I just did a quick check of recompiling everything and it seems
MessageBasedWebService.java is the only file that needs the
source="1.4" flag: I only included it in a new target:
   <target name="compile-dev-14"> <javac ...

and excluded it from the (modified) target:
  <target name="compile-dev" depends="compile-dev-14"> <javac ...

Compilation completes successfully. Also, I don't expect any binary
compatibility problem with the apache axis dpendency, but I guess it
would be better to update that dependency as well.

Great that you have brought up this topic!


Dan Higgins wrote:
> Hi Ilkay,
>     I did run into a problem in compiling Kepler without the 'source 
> 1.4' setting. I get the error
>     [javac] Compiling 915 source files to C:\work\kepler\build\classes
>     [javac] 
> C:\work\kepler\build\src\org\sdm\spa\MessageBasedWebService.java:85:
>  as of release 1.5, 'enum' is a keyword, and may not be used as an 
> identifier
>     [javac] (try -source 1.4 or lower to use 'enum' as an identifier)
>     [javac] import org.apache.axis.enum.Style;
>     [javac]                        ^
>     [javac] 1 error
> It looks like the MessageBasedWebService actor calls an axis class that 
> has 'enum' in the path and Java 1.5 does not like that! So it looks like 
> the axis package we are using is pre Java 1.5. Is there a fix for this? 
> (I am assuming you are familiar with this code.)
> Dan
> Dan Higgins wrote:
>> Hi All,
>>     As you may well know, current Kepler builds are based on Java 1.4. 
>> The ant build file allows the use of Java 1.5 but the '-source' command 
>> line option is set to '1.4'.
>>     Several developers have wanted to use some Java features (e.g. 
>> generics) that are present in Java 1.5 but not in Java 1.4. Since Java 
>> 1.5 is readily available for Windows, Mac, and Linux, I do not see any 
>> problems with simply dropping the '-source 1.4' switch from the compiler 
>> command line and making 1.5 the default version of Java for Kepler. Does 
>> anyone out there object to this, or know of some problems that may occur?
>> Dan Higgins

More information about the Kepler-dev mailing list