Sealing violations happen when classes for a 'sealed' package are loaded from more than one source. So indeed it's likely you have different versions of the same JARs. One seals a package (or an entire JAR) by specifying the sealed attribute in the JAR's manifest. Try running Ant with the java.exe flag -verbose:class to see which classes are loaded from where to troubleshooting your problem, and also peak into your various JAR manifests... --DD
-----Original Message----- From: Jason Russ [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 15, 2002 1:28 PM To: 'Ant Users List' Subject: RE: SecurityException: sealing violation Thank you for your reply Mark. I have seen similar postings in the news group so I was sure to set the classpath to a blank list. (i.e. set CLASSPATH= ). The only jars that I can think of that are being used are those in the Ant/lib directory and the jre/lib & jre/lib/ext directories. Jason Russ -----Original Message----- From: Mark Fortner [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 15, 2002 2:26 PM To: Ant Users List Subject: Re: SecurityException: sealing violation Jason, I've seen this happen with other programs. It usually occurs when there are two versions of a JAR file in the classpath. For example, if you had the Ant 1.4.1 and Ant 1.5.1 JARs in the classpath, the classloader would get confused as to which version you wanted. Mark Jason Russ wrote: >Can anyone tell me why I'm getting this exception? >How do I figure out what class/jar it is trying to load? >Does ant 1.5.1 require JDK 1.4? > >Thanks for any help, >Jason Russ > >Sr. Software Engineer >McCabe & Associates >Columbia MD > > >D:\java\downloads\jakarta-ant-1.5.1>set CLASSPATH= > >D:\java\downloads\jakarta-ant-1.5.1>ant -verbose >Apache Ant version 1.5.1 compiled on October 2 2002 >Buildfile: build.xml >Detected Java version: 1.3 in: D:\java\jdk1.3.1_04\jre >Detected OS: Windows NT > >BUILD FAILED >java.lang.SecurityException: sealing violation > at java.net.URLClassLoader.defineClass(URLClassLoader.java:229) > at java.net.URLClassLoader.access$100(URLClassLoader.java:51) > at java.net.URLClassLoader$1.run(URLClassLoader.java:190) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:183) > at java.lang.ClassLoader.loadClass(ClassLoader.java:294) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:281) > at java.lang.ClassLoader.loadClass(ClassLoader.java:250) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:115) > at org.apache.tools.ant.Project.init(Project.java:269) > at org.apache.tools.ant.Main.runBuild(Main.java:583) > at org.apache.tools.ant.Main.start(Main.java:196) > at org.apache.tools.ant.Main.main(Main.java:235) > >Total time: 0 seconds >java.lang.SecurityException: sealing violation > at java.net.URLClassLoader.defineClass(URLClassLoader.java:229) > at java.net.URLClassLoader.access$100(URLClassLoader.java:51) > at java.net.URLClassLoader$1.run(URLClassLoader.java:190) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:183) > at java.lang.ClassLoader.loadClass(ClassLoader.java:294) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:281) > at java.lang.ClassLoader.loadClass(ClassLoader.java:250) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:115) > at org.apache.tools.ant.Project.init(Project.java:269) > at org.apache.tools.ant.Main.runBuild(Main.java:583) > at org.apache.tools.ant.Main.start(Main.java:196) > at org.apache.tools.ant.Main.main(Main.java:235) >sealing violation > >-- >To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> >For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
