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  1. Application Server 3 4 5 and 6
  2. JBAS-9211

java.lang.NoClassDefFoundError: test/n (wrong name: test/N)

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    • Bug
    • Resolution: Done
    • Critical
    • 6.1.0
    • 6.0.0.M3, 6.0.0.Final
    • ClassLoading
    • None
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      1. write two java classes with name test/N.java and test/n.java
      2. write a servlet to construct this two classes
      3. jar all the classes into a .jar archive, put the jar into WEB-INF/lib
      4. write a web.xml to load the above servlet

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      1. write two java classes with name test/N.java and test/n.java 2. write a servlet to construct this two classes 3. jar all the classes into a .jar archive, put the jar into WEB-INF/lib 4. write a web.xml to load the above servlet

    Description

      When a jar file in the WEB-INF/lib folder contains a classname with different case. For example, test/N.class and test/n.class.

      JBoss AS can load the test/N.class but not test/n.class. Once construct the "test.n" object. NoClassDefFoundError will be thrown as follows:

      13:52:17,864 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/JBAS8408].[JBAS8408Servlet]] Servlet.service() for servlet JBAS8408Servlet threw exception: java.lang.NoClassDefFoundError: test/n (wrong name: test/N)
      at java.lang.ClassLoader.defineClass1(Native Method) [:1.6.0_22]
      at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) [:1.6.0_22]
      at java.lang.ClassLoader.defineClass(ClassLoader.java:616) [:1.6.0_22]
      at org.jboss.classloader.spi.base.BaseClassLoader.access$200(BaseClassLoader.java:52) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader.java:650) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader.java:609) [jboss-classloader.jar:2.2.0.GA]
      at java.security.AccessController.doPrivileged(Native Method) [:1.6.0_22]
      at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseClassLoader.java:608) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseClassLoader.java:585) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseDelegateLoader.loadClass(BaseDelegateLoader.java:156) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.filter.FilteredDelegateLoader.doLoadClass(FilteredDelegateLoader.java:141) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.filter.FilteredDelegateLoader.loadClass(FilteredDelegateLoader.java:132) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.ClassLoadingTask$ThreadTask.run(ClassLoadingTask.java:461) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.ClassLoaderManager.nextTask(ClassLoaderManager.java:262) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.ClassLoaderManager.process(ClassLoaderManager.java:161) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:260) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:1152) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoader.loadClassFromDomain(BaseClassLoader.java:886) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoader.doLoadClass(BaseClassLoader.java:505) [jboss-classloader.jar:2.2.0.GA]
      at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:450) [jboss-classloader.jar:2.2.0.GA]
      at java.lang.ClassLoader.loadClass(ClassLoader.java:248) [:1.6.0_22]
      at test.JBAS8408Servlet.doGet(JBAS8408Servlet.java:14) [:]
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [:1.0.0.Final]
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [:1.0.0.Final]
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:324) [:6.0.0.Final]
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.Final]
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [:6.0.0.Final]
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [:6.0.0.Final]
      at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:181) [:6.0.0.Final]
      at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285) [:1.1.0.Final]
      at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261) [:1.1.0.Final]
      at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:88) [:6.0.0.Final]
      at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:100) [:6.0.0.Final]
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [:6.0.0.Final]
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.0.0.Final]
      at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.0.0.Final]
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.0.0.Final]
      at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:53) [:6.0.0.Final]
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [:6.0.0.Final]
      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [:6.0.0.Final]
      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654) [:6.0.0.Final]
      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.0.0.Final]
      at java.lang.Thread.run(Thread.java:662) [:1.6.0_22]

      In Linux, we can extract the library jar manually to the WEB-INF/classes folder. As such, the Class with the same name but in different case can be loaded properly.

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          is blocked by

          Feature Request - Feature requests from customers and/or users JBVFS-170 Support for -Djboss.vfs.forceCaseSensitive=true

          • Minor - To be worked after urgent, high, and medium priorities are resolved. This term is chosen when the severity of the issue is low, or the complexity or effort to correct it may be higher, relatively speaking. For low priority issues, known workarounds exist or are not needed due to the trivial effort needed to address the issue.
          • Resolved
          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. JBAS-8408 java.lang.NoClassDefFoundError: com/rsa/cryptoj/c/di using JBoss 6.0.0.M3

          • Critical - To be worked on immediately following BLOCKER issues.
          • Reopened

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              ajustin@redhat.com Ales Justin
              miguel.cheng miguel cheng (Inactive)
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                Updated:
                Resolved: