java.lang.NullPointerException: This exception has no message.

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Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

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java.lang.NullPointerException:
at java.util.Hashtable.put(Hashtable.java:393)
at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:141)
at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:153)
at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:415)
at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:384)
at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:790)
at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:673)
at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:616)
at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:602)
at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:460)
at org.apache.log4j.LogManager.(LogManager.java:113)
at se.anatom.ejbca.ca.store.certificateprofiles.CertificateProfile.(CertificateProfile.java:34)

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