tomcat - NoClassDefFoundError exception in weblogic -


i have developed web application in tomcat earlier , had jar files in tomcat/lib directory. trying run application on weblogic server have installed weblogic 10.3.6, created weblogic domain , deployed application. copied jar files placed earlier in tomcat/lib below lib directory:

middleware/user_projects/domains/my_domain/lib/

i believe lib directory should in class-path when access class file in web application getting below error:

caused by: java.lang.noclassdeffounderror: com/sample/testmanager         @ java.lang.classloader.defineclass1(native method)         @ java.lang.classloader.defineclasscond(classloader.java:631)         @ java.lang.classloader.defineclass(classloader.java:615)         @ java.security.secureclassloader.defineclass(secureclassloader.java:141)         @ java.net.urlclassloader.defineclass(urlclassloader.java:283)         @ java.net.urlclassloader.access$000(urlclassloader.java:58)         @ java.net.urlclassloader$1.run(urlclassloader.java:197)         @ java.net.urlclassloader.findclass(urlclassloader.java:190)         @ java.lang.classloader.loadclass(classloader.java:306)         @ java.lang.classloader.loadclass(classloader.java:295)         @ java.lang.classloader.loadclass(classloader.java:247)         @ weblogic.utils.classloaders.genericclassloader.loadclass(genericclassloader.java:179)         @ weblogic.utils.classloaders.filteringclassloader.findclass(filteringclassloader.java:101)         @ weblogic.utils.classloaders.filteringclassloader.loadclass(filteringclassloader.java:86)         @ java.lang.classloader.loadclass(classloader.java:295)         @ java.lang.classloader.loadclass(classloader.java:295)         @ java.lang.classloader.loadclass(classloader.java:247)         @ weblogic.utils.classloaders.genericclassloader.loadclass(genericclassloader.java:179)         @ weblogic.utils.classloaders.changeawareclassloader.loadclass(changeawareclassloader.java:43)         @ java.lang.class.forname0(native method)         @ java.lang.class.forname(class.java:171)

i wanted ask clarification new , stackoverflow not allowing me ask clarification. hence posting answer

when place in domain_home/lib, remember jars in not appended system/server classpath. classloader gets created child of system/server classloader.

so, classes in jars in domain_home/lib directory visible applications, such wars, ears, etc.

consider this:

  • if war/ear class package1.a
  • if system/server classpath has jar file contains package2.b
  • if domain_home/lib has jar file contains package3.c

and if refer:
a) package2.b package1.a
b) package3.c package2.b


then "a" pass "b" fail similar error getting.


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