sealing violation with Tomcat 4.0

[Chris P. McCabe]

I am attempting to run Tomcat 4.0, but when it tries to load my servlet,

I get a sealing violation (see traceback below).  Now I understand that
a sealing violation is when a sealed jar file attempts to load a class
in the same package that is not in the jar file.  But in this case, I
get the exception whether the classes are in jar files (not sealed), or
as individual class files.  The class that it is trying to instantiate
when the exception is thrown is in the same package as the class it is
contained in.
  Can anyone shed some light on what the problem is?

Thanks,
 Chris

Here is the exception:

java.lang.SecurityException: sealing violation
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:234)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at
org.apache.catalina.loader.StandardClassLoader.findClass(StandardClassLoader.java:648)

        at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:987)

        at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:906)

        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)

        at com.choicehotels.webcauldron.Servlet.(Servlet.java:115)
        at java.lang.Class.newInstance0(Native Method)
        at java.lang.Class.newInstance(Class.java:237)
        at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:740)
        at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:544)

        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:227)

        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:196)

        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
        at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2038)

        at
org.apache.catalina.connector.warp.WarpContext.invoke(WarpContext.java:100)

        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)

        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
        at
org.apache.catalina.connector.warp.WarpHost.invoke(WarpHost.java:130)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:159)

        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
        at
org.apache.catalina.connector.warp.WarpEngine.invoke(WarpEngine.java:115)

        at
org.apache.catalina.connector.warp.WarpRequestHandler.process(WarpRequestHandler.java:165)

        at
org.apache.catalina.connector.warp.WarpHandler.run(WarpHandler.java:156)

        at java.lang.Thread.run(Thread.java:484)


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