----- Original Message ----- From: Daniel Rall <[EMAIL PROTECTED]> To: Turbine Users List <[EMAIL PROTECTED]> Sent: Tuesday, March 12, 2002 1:05 AM Subject: Re: LinkageError when running TorqueSQLTask
> "Justin Lawler" <[EMAIL PROTECTED]> writes: > > > I am execuring the ant task "TorqueSQLTask" through a program, ie im setting up all the necessary properties and then calling the "execute" method. and I get a LinkageError: > > > > [java] java.lang.LinkageError: loader constraints violated when linking org/xml/sax/XMLReader class > > [java] at org.apache.xerces.jaxp.SAXParserFactoryImpl.newSAXParser(SAXParserFactoryImp l.java:95) > > [java] at org.apache.torque.engine.database.transform.XmlToAppData.parseFile(XmlToAppD ata.java:160) > > [java] at org.apache.torque.task.TorqueDataModelTask.initControlContext(TorqueDataMode lTask.java:225) > > [java] at org.apache.torque.task.TorqueSQLTask.initControlContext(TorqueSQLTask.java:2 26) > > [java] at org.apache.velocity.texen.ant.TexenTask.execute(TexenTask.java:480) > > [java] at com.work.torque.TableObjGen.createSQLFile(TableObjGen.java:196) > > [java] at com.work.torque.TableObjGen.main(TableObjGen.java:321) > > [java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > [java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39 ) > > [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:25) > > [java] at java.lang.reflect.Method.invoke(Method.java:324) > > [java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:124) > > [java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:305) > > [java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:127) > > [java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:88) > > [java] at org.apache.tools.ant.Task.perform(Task.java:217) > > [java] at org.apache.tools.ant.Target.execute(Target.java:184) > > [java] at org.apache.tools.ant.Target.performTasks(Target.java:202) > > [java] at org.apache.tools.ant.Project.executeTarget(Project.java:601) > > [java] at org.apache.tools.ant.Project.executeTargets(Project.java:560) > > [java] at org.apache.tools.ant.Main.runBuild(Main.java:454) > > [java] at org.apache.tools.ant.Main.start(Main.java:153) > > [java] at org.apache.tools.ant.Main.main(Main.java:176) > > > > > > I'm running the Torque and tdk versions "020302", with all the jars that came with the tdk. I was having a look in the tdk jars and there seems to be a few jars with the XMLReader in them, eg. XMLParserAPIs, xalan-2.1.0, dom4j-1.1. Could this be part of the problem? > > That is exactly the problem -- as the error message says, a > LinkageError was thrown (loaded impl may not match loaded interface). > If you're running from Tomcat or another servlet container which > includes its own XML parser, things are further complicated. > > > Also, there seems to be no problem when running this task straight from ant. > > Are you running your app from within a servlet container? no, to further complicate things, im running the program that executes the task from the ant "java" task, because its much easier to create a classpath in ant. Is there any way of finding out where it loads each class from? thanks, Justin -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
