Hi Steve, Thanks for the explanation. It still would save some head scratching and $$$ (I spent almost a whole day trying to get my ant file running) if the fork option documentation was a bit expanded.
Cheers, Fred --- Steve Loughran <[EMAIL PROTECTED]> wrote: > Fred Janon wrote: > > Hi Garrett, > > > > Thanks for the answer, the TopAntTips got the ansmwer for my > problem. > > > > Following up on my ant java target question, the "fork" option for > > those who use ant to run java apps seem to be important when > specifying > > the classpath: > > > > with fork='true' in the java target, here is the classpath as seen > from > > the app, it is the one from "app.classpath" in the build file as > > desired: > > > > [java] > > > C:\Groovy-1.5.4\embeddable\groovy-all-1.5.4.jar;C:\Groovy_JPADownstream\classes;C:\Groovy_JPADownstream\lib\derby.jar;C:\Groovy_JPADownstr > > > eam\lib\derbyclient.jar;C:\Groovy_JPADownstream\lib\toplink-essentials-agent.jar;C:\Groovy_JPADownstream\lib\toplink-essentials.jar;C:\Groovy_JPADowns > > tream\config > > > > <target name = "run" depends = "compile"> > > <!-- CAUTION: MUST have the 'fork="true"' attribute, otherwise > the > > classpath of the application is the one from ant and JPA doesn't > find > > the persistence.xml file --> > > <java classname = "downstream.PopulateDownstream" fork="true"> > > <classpath refid = "app.classpath"/> > > </java> > > </target> > > > > with fork='false' in the java target. it is the one for "ant", not > much > > to do with the one specified in "app.classpath" in the build file: > > > > [java] > > > C:\ant-1.7.0\lib\ant-launcher.jar;C:\Groovy_JPADownstream\.;C:\Program > > Files\Java\jre1.6.0_02\lib\ext\QTJava.zip;C:\ant-1.7.0\lib\ant-antl > > > r.jar;C:\ant-1.7.0\lib\ant-apache-bcel.jar;C:\ant-1.7.0\lib\ant-apache-bsf.jar;C:\ant-1.7.0\lib\ant-apache-log4j.jar;C:\ant-1.7.0\lib\ant-apache-oro.j > > > ar;C:\ant-1.7.0\lib\ant-apache-regexp.jar;C:\ant-1.7.0\lib\ant-apache-resolver.jar;C:\ant-1.7.0\lib\ant-commons-logging.jar;C:\ant-1.7.0\lib\ant-commo > > > ns-net.jar;C:\ant-1.7.0\lib\ant-jai.jar;C:\ant-1.7.0\lib\ant-javamail.jar;C:\ant-1.7.0\lib\ant-jdepend.jar;C:\ant-1.7.0\lib\ant-jmf.jar;C:\ant-1.7.0\l > > > ib\ant-jsch.jar;C:\ant-1.7.0\lib\ant-junit.jar;C:\ant-1.7.0\lib\ant-launcher.jar;C:\ant-1.7.0\lib\ant-netrexx.jar;C:\ant-1.7.0\lib\ant-nodeps.jar;C:\a > > > nt-1.7.0\lib\ant-starteam.jar;C:\ant-1.7.0\lib\ant-stylebook.jar;C:\ant-1.7.0\lib\ant-swing.jar;C:\ant-1.7.0\lib\ant-testutil.jar;C:\ant-1.7.0\lib\ant > > > -trax.jar;C:\ant-1.7.0\lib\ant-weblogic.jar;C:\ant-1.7.0\lib\ant.jar;C:\ant-1.7.0\lib\junit.jar;C:\ant-1.7.0\lib\xercesImpl.jar;C:\ant-1.7.0\lib\xml-a > > pis.jar;C:\jdk1.6.0_02\lib\tools.jar > > > > <target name = "run" depends = "compile"> > > <!-- CAUTION: MUST have the 'fork="true"' attribute, otherwise > the > > classpath of the application is the one from ant and JPA doesn't > find > > the persistence.xml file --> > > <java classname = "downstream.PopulateDownstream" fork="false"> > > <classpath refid = "app.classpath"/> > > </java> > > </target> > > > > > When you don't fork, the classpath of the java process should be > -the classpath you set > -java.*, javax.* and some bits of org.omg.*, org.w3c.* sun.* that > are > part of the de-facto JVM API. > If the ant stuff is being seen, it could be that the app.classpath > has > somehow pulled them in. > Your code runs under a security manager that catches calls to > System.exit(), so only your app exits, not the JVM. > > > I don't really understand why for='true' is not the default for > the > > java target in ant but that's how it is. > > > Historically, because it made things faster to run. Most of Ant's own > > tasks <javac> etc. are bits of java code running in-JVM. Also, in-JVM > > code picks up ANT's proxy and memory settings automatically; makes > customisation easier. > > > Conclusion: make sure that 'fork="true"' is set on a java target > in Ant > > is you want to use your own classpath and not the Ant one. > > -- > Steve Loughran > http://www.1060.org/blogxter/publish/5 > Author: Ant in Action http://antbook.org/ > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
