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http://issues.apache.org/bugzilla/show_bug.cgi?id=29182 Jasper locks jar files when compiling JSPs through Ant ------- Additional Comments From [EMAIL PROTECTED] 2004-05-25 08:54 ------- I don't think this is a Javac or Ant issue - in fact, my testcase does not use Javac at all. As I wrote privately to Kin-Man, I believe the problem is that JspC uses URLClassLoader, which is known to lock jar files. When Jasper runs inside the Catalina container, Catalina's WebappClassLoader is used, so the code that locks jars is avoided. But thanks for the hint with fork=true, this actually helped. I replaced the <taskdef name="jasper2" classname="org.apache.jasper.JspC"> style of calling Jasper by the <java> task, which allows to fork JspC: <java classname="org.apache.jasper.JspC" fork="true" failonerror="true" > <arg value="-uriroot"/> <arg value="${basedir}/build/web"/> <arg value="-d"/> <arg value="${basedir}/build/jsps/src"/> <arg value="-die1"/> <classpath> <pathelement location="${java.home}/../lib/tools.jar"/> <fileset dir="${tomcat.home}/bin"> <include name="*.jar"/> </fileset> <fileset dir="${tomcat.home}/server/lib"> <include name="*.jar"/> </fileset> <fileset dir="${tomcat.home}/common/lib"> <include name="*.jar"/> </fileset> </classpath> </java> When using the above code, jar files are not locked and my testcase succeeds. However, I don't much like this solution, because: - Code that uses <java> is uglier than when you use <taskdef> - Tomcat documentation recommends the use of <taskdef>, see: http://jakarta.apache.org/tomcat/tomcat-5.0-doc/jasper-howto.html So I would still appreciate if this is fixed. There is an additional aspect: many current IDEs have some kind of Ant integrations, and most IDEs run Ant internally, without launching a separate process. So when JspC locks jar files, these jar files will be locked until the IDE exits. That's another compelling reason to fix this issue. Thanks. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
