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From "glenn opdycke-hansen" <glenn...@gmail.com>
Subject Re: ant javac version question
Date Wed, 13 Dec 2006 19:20:01 GMT
Good idea.  I am from the "scorched earth" build school and the build
script has the following before the compile:

init:
Setting project property: DSTAMP -> 20061211
Setting project property: TSTAMP -> 1438
Setting project property: TODAY -> December 11 2006
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\tests-classes
   [delete] Deleting
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\tests-classes\mask\MaskPayloadTest.class
   [delete] Deleting
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\tests-classes\mask\MaskPayloadXmlTest.class
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\tests-classes\mask
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\tests-classes
    [mkdir] Created dir:
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\tests-classes
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes
   [delete] Deleting
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes\com\usbank\entdevsvc\mask\MaskPayload.class
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes\com\usbank\entdevsvc\mask
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes\com\usbank\entdevsvc
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes\com\usbank
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes\com
   [delete] Deleting directory
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes
    [mkdir] Created dir:
K:\bxnaray_ssmcmn_1.0_dev\ssm_src\ssm_cmn\ems_maskpayload\classes

compile-src:

On 12/13/06, Scot P. Floess <floess@mindspring.com> wrote:
> 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
>
>

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