java.lang.ClassNotFoundException: MyUserNameMapper

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Expert tip

This might be an issue with the file location in the Spark submit command. Try it with

spark-submit --master spark://master:7077 \
     hello_world_from_pyspark.py {file location}

,

You are not deploying the oracle driver with the application. Place the driver jars in a shared or library extension folder of your application server. (You should go with option one or two though

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via Google Groups by Ya Ji, 5 months ago
via Oracle Community by 3004, 1 year ago
java.lang.ClassNotFoundException: MyUserNameMapper
at javax.management.loading.MLet.findClass(MLet.java:800)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:140)
at weblogic.security.providers.authentication.DefaultIdentityAsserterProviderImpl.initialize(DefaultIdentityAsserterProviderImpl.java:115)
at weblogic.security.service.SecurityServiceManager.createSecurityProvider(SecurityServiceManager.java:1696)
at weblogic.security.service.PrincipalAuthenticator.initialize(PrincipalAuthenticator.java:158)

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