"JBAS015893: Encountered invalid class name" during deployment on JBoss EAP 6

Environment

• Red Hat JBoss Enterprise Application Platform (EAP)
  • 6.x
• Red Hat JBoss Enterprise Business Rules Management System Platform (BRMS)
  • 5.3.x

Issue

• Following warning messages appeared when jboss-brms.war was deployed on JBoss EAP 6:

    JBAS015893: Encountered invalid class name 'org.springframework.context.ApplicationContext,org.springframework.beans.BeansException' for service type 'org.apache.cxf.bus.factory'
    JBAS015893: Encountered invalid class name 'org.xmlpull.mxp1.MXParser,org.xmlpull.mxp1_serializer.MXSerializer' for service type 'org.xmlpull.v1.XmlPullParserFactory'
  

• When including Jersey in my application, I get these warning messages:

    JBAS015893: Encountered invalid class name 'com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$App' for service type 'javax.ws.rs.ext.MessageBodyReader'
    JBAS015893: Encountered invalid class name 'com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$Text' for service type 'javax.ws.rs.ext.MessageBodyReader'
    JBAS015893: Encountered invalid class name 'com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General' for service type 'javax.ws.rs.ext.MessageBodyReader'
  

• On deploying the application that uses Saxon version 9.4.0.4 EE in the Jboss server we noticed the following warning:

WARN  [org.jboss.as.server.deployment] (MSC service thread 1-34) JBAS015893: Encountered invalid class name 'http\://www.w3.org/2001/XMLSchema: com.saxonica.jaxp.SchemaFactoryImpl' for service type 'javax.xml.validation.SchemaFactory' 
WARN  [org.jboss.as.server.deployment] (MSC service thread 1-34) JBAS015893: Encountered invalid class name 'http\://java.sun.com/jaxp/xpath/dom:    

What is the source of these warning messages and how can it be resolved ?

Resolution

Just ignore these warning messages since it will not cause any impact on the application.

This warning message is logged because of invalid /META-INF/services/ file. This checked has been removed upstream via Content from issues.jboss.org is not included.WFLY-1401.

Root Cause

The JBAS015893 error (which is not fatal) means that the class name does not match the regular expression "(?:[a-zA-Z0-9_]+\\.)*[a-zA-Z0-9_]+". For the BRMS case, it contains a comma. For the Jersey issue, it contains a dollar sign ("$").

To read about the behavior of META-INF/services/ file, Content from docs.oracle.com is not included.click here. From the doc:

The file contains a list of fully-qualified binary names of concrete provider classes, one per line. Space and tab characters surrounding each name, as well as blank lines, are ignored. The comment character is '#' ('\u0023', NUMBER SIGN); on each line all characters following the first comment character are ignored. The file must be encoded in UTF-8.

The BRMS message is logged because jar(jboss-brms.war/WEB-INF/lib/xpp3_min-1.1.4c.jar & jboss-brms.war/WEB-INF/lib/cxf-rt-core-2.4.10.jar) that contains the org.xmlpull.v1.XmlPullParserFactory and org.apache.cxf.bus.factory implementation contains an invalid /META-INF/services/ file. It is listing two implementations comma-separated on one line rather than one line each.

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