ant-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Scot P. Floess" <flo...@mindspring.com>
Subject Re: ant javac version question
Date Wed, 13 Dec 2006 19:08:54 GMT
I'd try removing all my class files and recompiling first.  Just because 
you removed the JDK 1.5 - does that mean you rebuilt everything 
afterward?  Otherwise you will still have 1.5 compiled versions of your 
class files.

glenn opdycke-hansen wrote:
> ok, how could we be getting jdk 1.5 java compile?
> We removed (via control panel) the 1.5 jdk. could some file be lurking
> in c:\winxp or other folder?
>
> Below are parts of the log from the build:
>
> PATH=D:\Software\Java\j2sdk1.4.2_13\bin;D:\Software\Perl\bin\;C:\CYGWIN\bin;D:\CVSNT;D:\Perl\bin;D:\apache-ant-1.6.5\bin;C:\PROGRA~1\Oracle\jre\1.1.8\bin;C:\WINXP\system32;C:\WINXP\System32\

>
> ...
> ANT_HOME=D:\apache-ant-1.6.5
> JAVA_HOME=D:\Software\Java\j2sdk1.4.2_13
> Apache Ant version 1.6.5 compiled on June 2 2005
> Buildfile: build.xml
> Adding reference: ant.PropertyHelper
> Detected Java version: 1.4 in: D:\Software\Java\j2sdk1.4.2_13\jre
> Detected OS: Windows XP
> ...
>    [javac] com\usbank\entdevsvc\mask\MaskPayload.java added as
> com/usbank/entdevsvc/mask/MaskPayload.class doesn't exist.
>    [javac] Compiling 1 source file to
> K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes
>    [javac] Using modern compiler
> fileset: Setup scanner in dir
> K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\vendor\jar with patternSet{
> includes: [*.jar] excludes: [] }
> dropping 
> K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\C:\PROGRA~1\IBM\SQLLIB\ja 
>
> from path as it doesn't exist
>    [javac] Compilation arguments:
>    [javac] '-d'
>    [javac] 
> 'K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes'
>    [javac] '-classpath'
>    [javac] 
> 'K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes;K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\vendor\jar\ContivoRuntime.jar;K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_c

>
> ...
>    [javac] '-sourcepath'
>    [javac] 
> 'K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\source'
>    [javac] '-target'
>    [javac] '1.4'
>    [javac] '-g'
>    [javac] '-verbose'
>    [javac]
>    [javac] The ' characters around the executable and arguments are
>    [javac] not part of the command.
>    [javac] File to be compiled:
>    [javac]
> K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\source\com\usbank\entdevsvc\mask\MaskPayload.java

>
>    [javac] [parsing started
> K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\source\com\usbank\entdevsvc\mask\MaskPayload.java]

>
>    [javac] [parsing completed 63ms]
>    [javac] [loading
> D:\Software\Java\j2sdk1.4.2_13\jre\lib\rt.jar(java/io/IOException.class)]
>    [javac] [loading
> D:\Software\Java\j2sdk1.4.2_13\jre\lib\rt.jar(java/io/Serializable.class)] 
>
> ...
>
> I did notice an invalid entry in the PATH.
> Should I check the CLASSPATH too?
>
>
>
> On 12/11/06, Scot P. Floess <floess@mindspring.com> wrote:
>> You can certainly specify which JDK to use in the <javac> task.
>> However, that may not fix your runtime issue...if an older version of
>> the JDK is used to run against it...
>>
>> Yes, specifying <target> may help...
>>
>> Again, you need to ensure the VM being used when running against the
>> compiled class is the correct version (in your case I think that means a
>> 1.4.2+ VM)...
>>
>> It looks to me like your code is being compiled using the JDK 1.5.0+  I
>> just compiled some code and did a "javap -c -verbose" on a class
>> file...  With the JDK 1.5.0_09 I get a minor = 0
>> major = 49...  Compiling wiht "javac -source 1.2 release 1.2" I see the
>> minor = 0 major = 46.
>>
>> My guess is the JDK being used during compilation is 1.5.0+.  As such,
>> try doing the target = "1.4" ... You may also need to set  source = 
>> "1.4"
>>
>> HTH,
>>
>> Scot
>>
>> glenn opdycke-hansen wrote:
>> > Right, I know that jdk 1.4.2 works.
>> > I suspect that some other jdk version is creeping into the class/jar
>> > file.
>> > I specified JAVA_HOME for the 1.4.2 jdk. I also suggested to the
>> > developer to change the path.  (I heard that that did not work)
>> > java -version also states that 1.4.2 will be used.
>> >
>> > Is there some option/parm on the javac that will help with this?
>> > Perhaps <target="1.4"> ?
>> > Perhaps <compiler="modern"> ?
>> > --glenn
>> >
>> > On 12/11/06, Scot P. Floess <floess@mindspring.com> wrote:
>> >> Well there is your problem...the JVM you are trying to use to run 
>> (not
>> >> compile) does not support the version that was compiled.
>> >> Meaning...let's say you compiled using the JDK 1.5 but attempted 
>> to run
>> >> using the JDK 1.2.2 - you'd get the error listed.
>> >>
>> >> Somehow you are compiling with a newer JDK but when running, you are
>> >> getting some older version of the JDK.
>> >>
>> >> Make sure your path is correct and include this newer JDK...  You 
>> might
>> >> want to put $JAVA_HOME/bin first in your path.  Or, on the command 
>> line
>> >> type:
>> >>
>> >> java -version
>> >>
>> >> Either way its a JVM mismatch problem.
>> >>
>> >> glenn opdycke-hansen wrote:
>> >> > Replies below.
>> >> >
>> >> > On 12/11/06, Scot P. Floess <floess@mindspring.com> wrote:
>> >> >> What type of exceptions are you getting?
>> >> >
>> >> > java.lang.Exception: Error in
>> >> > [ProcessDefinitions/Shared/Logging/MaskLogData.process/MaskPayload]
>> >> > BW-JAVA-100030 Unable to obtain information for method
>> >> > [maskElementsInPayload] from the class
>> >> > [com.usbank.entdevsvc.mask.MaskPayload].  Exception occurred.
>> >> > java.lang.UnsupportedClassVersionError:
>> >> > com/usbank/entdevsvc/mask/MaskPayload (Unsupported major.minor 
>> version
>> >> > 49.0)
>> >> >
>> >> >>
>> >> >> If you use the class file outside the jar file...does that work?
>> >> >
>> >> > We have not tried that (yet).
>> >> >
>> >> >>
>> >> >> Is your harddrive full?
>> >> >
>> >> > no
>> >> >
>> >> >>
>> >> >> glenn opdycke-hansen wrote:
>> >> >> > We are seeing that the javac can produce an unusable .class

>> file.
>> >> >> > One PC will build the java source OK, but the other PC does
>> >> not.  The
>> >> >> > resulting JAR file has a different size and there are exceptions
>> >> when
>> >> >> > the other jar is used.
>> >> >> > We set JAVA_HOME to the jdk (1.4.2_13) on both PCs.
>> >> >> >
>> >> >> > Has anyone seen this?
>> >> >> > Could it be due to differences in the PATH (winxp)?
>> >> >> > Is there any way to check the version of the jdk/javac used?
>> >> (-verbose
>> >> >> > does not seem to provide enough info)
>> >> >> >
>> >> >> > Thanks,
>> >> >> > --glenn
>> >> >> >
>> >> >> >
>> >> ---------------------------------------------------------------------
>> >> >> > To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>> >> >> > For additional commands, e-mail: user-help@ant.apache.org
>> >> >> >
>> >> >> >
>> >> >>
>> >> >> --
>> >> >> 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
>> >> >> Chief Architect JavaPIM http://sourceforge.net/projects/javapim
>> >> >>
>> >> >>
>> >> >> 
>> ---------------------------------------------------------------------
>> >> >> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>> >> >> For additional commands, e-mail: user-help@ant.apache.org
>> >> >>
>> >> >>
>> >> >
>> >>
>> >> --
>> >> 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
>> >> Chief Architect JavaPIM http://sourceforge.net/projects/javapim
>> >>
>> >>
>> >
>>
>> -- 
>> 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
>> Chief Architect JavaPIM http://sourceforge.net/projects/javapim
>>
>>
>

-- 
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
Chief Architect JavaPIM http://sourceforge.net/projects/javapim


---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
For additional commands, e-mail: user-help@ant.apache.org


Mime
View raw message