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ANT/MySQL JDBC Classloader Problem

 
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I downloaded the J-Connect JDBC driver and am having difficulty getting it to run under ANT.

It runs fine when I use javac/java.

Here is my build.xml file.



Here is the basic code to load driver.



Here is the exception I am getting ...

processDatabase called ...
[java] java.util.zip.ZipException: error in opening zip file
[java] at java.util.zip.ZipFile.open(Native Method)
[java] at java.util.zip.ZipFile.<init>(ZipFile.java:114)
[java] at java.util.zip.ZipFile.<init>(ZipFile.java:131)
[java] at org.apache.tools.ant.AntClassLoader.getResourceURL(AntClassLoader.java:1014)
[java] at org.apache.tools.ant.AntClassLoader$ResourceEnumeration.findNextResource(AntClassLoader.java:146)
[java] at org.apache.tools.ant.AntClassLoader$ResourceEnumeration.<init>(AntClassLoader.java:108)
[java] at org.apache.tools.ant.AntClassLoader.findResources(AntClassLoader.java:958)
[java] at java.lang.ClassLoader.getResources(ClassLoader.java:1015)
[java] at sun.misc.Service$LazyIterator.hasNext(Service.java:249)
[java] at java.sql.DriverService.run(DriverManager.java:663)
[java] at java.security.AccessController.doPrivileged(Native Method)
[java] at java.sql.DriverManager.loadInitialDrivers(DriverManager.java:506)
[java] at java.sql.DriverManager.initialize(DriverManager.java:612)
[java] at java.sql.DriverManager.registerDriver(DriverManager.java:281)
[java] at com.mysql.jdbc.Driver.<clinit>(Driver.java:62)
[java] at java.lang.Class.forName0(Native Method)
[java] at java.lang.Class.forName(Class.java:169)
[java] at com.defenseknife.component.MysqlDatabaseProxy.initialize(Unknown Source)
[java] at com.defenseknife.component.MysqlDatabaseProxy.<init>(Unknown Source)
[java] at com.defenseknife.moteng.file.MotengDataFile.processDatabase(Unknown Source)
[java] at com.defenseknife.moteng.processor.MotengDataFileHandler.processFiles(Unknown Source)
[java] at com.defenseknife.moteng.processor.MotengProcessor.processFiles(Unknown Source)
[java] at com.defenseknife.server.MerchantTradersDataProcessor.main(Unknown Source)
[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:597)
[java] at org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:217)
[java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:152)
[java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:747)
[java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:201)
[java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:104)
[java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[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:597)
[java] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
[java] at org.apache.tools.ant.Task.perform(Task.java:348)
[java] at org.apache.tools.ant.Target.execute(Target.java:357)
[java] at org.apache.tools.ant.Target.performTasks(Target.java:385)
[java] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
[java] at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
[java] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[java] at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
[java] at org.apache.tools.ant.Main.runBuild(Main.java:698)
[java] at org.apache.tools.ant.Main.startAnt(Main.java:199)
[java] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
[java] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)

Any insight is GREATLY appreciated!

Thanks,
Aryeh
 
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This error can be thrown when a JAR file on the classpath is corrupted. Are you using all the same JAR files in the classpath when running from the command-line?

Also, why is ${src.dir} on your classpath?
 
Aryeh Golob
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Nate ...

I owe you BIG TIME!!!

The issue was the ${src.dir} in the classpath. This must have been a remnant from when I was first trying to setup ANT. Never had an issue before, so I thought everything was OK.

Funny thing is, when I compiled using Java 1.5.x, everything worked fine.

I have been breaking my head over this for 1 1/2 days, so I REALLY appreciate your help.

Thanks ALOT!
Aryeh
 
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