java.lang.SecurityException: sealing violation at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.defineClass(ContextClassLoader.java:1128) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.findClass(ContextClassLoader.java:390) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadLocalClassFirst(ContextClassLoader.java:153) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadClass(ContextClassLoader.java:132)

Oracle Community | 458602 | 1 decade ago
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    hivmr.com | 10 months ago
    java.lang.SecurityException: sealing violation at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.defineClass(ContextClassLoader.java:1128) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.findClass(ContextClassLoader.java:390) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadLocalClassFirst(ContextClassLoader.java:153) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadClass(ContextClassLoader.java:132)
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    Oracle Community | 1 decade ago | 458602
    java.lang.SecurityException: sealing violation at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.defineClass(ContextClassLoader.java:1128) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.findClass(ContextClassLoader.java:390) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadLocalClassFirst(ContextClassLoader.java:153) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadClass(ContextClassLoader.java:132)
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    Oracle Community | 1 decade ago | 458602
    java.lang.SecurityException: sealing violation user455599, you have encountered a common classloading exception. The following are a few ideas and suggestions of mine. This "sealing violation" happens in the following situation. You have a "sealed" java package in a jar; for example, if the manifest of the jar contains a main attribute "Sealed : true". You also have some classes of the same package in another jar. If a classloader loads first a class of that package from the sealed jar and then attempts to load another class of the same package from the other jar, a "sealing violation" will occur since the package is sealed. If it happens the other way around, a "sealing violatin" still occurs since a package can not be sealed from a different jar. at com.evermind[Oracle Application Server Containers for J2EE 10g(9.0.4.0.0)].naming.ContextClassLoader.loadLocalClassFirst(ContextClassLoader.java:153) at com.evermind[Oracle Application Server Containers for J2EE 10g(9.0.4.0.0)].naming.ContextClassLoader.loadClass(ContextClassLoader.java:132)
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    Apache Derby startup error java.lang.SecurityException: sealing violation: package org.apache.derby.impl.services.timer is sealed

    Stack Overflow | 1 year ago | Maz
    java.lang.SecurityException: sealing violation: package org.apache.derby.impl.services.timer is sealed

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Root Cause Analysis

  1. java.lang.SecurityException

    sealing violation at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.defineClass(ContextClassLoader.java:1128) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.findClass(ContextClassLoader.java:390) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadLocalClassFirst(ContextClassLoader.java:153) at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].naming.ContextClassLoader.loadClass(ContextClassLoader.java:132)

    at java.lang.ClassLoader.loadClass()
  2. Java RT
    Class.forName
    1. java.lang.ClassLoader.loadClass(ClassLoader.java:235)
    2. java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
    3. java.lang.Class.forName0(Native Method)
    4. java.lang.Class.forName(Class.java:219)
    4 frames