Native libraries for JBossWeb/Tomcat couldn't be loaded:
[AprLifecycleListener] The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path ...

See for example:
http://hudson.qa.jboss.com/hudson/view/EAP-native/job/eap5-native-connectors-solaris-ews/5/jdk=java16_default,label=native-solaris10-sparc/consoleText
http://hudson.qa.jboss.com/hudson/view/EAP-native/job/eap5-native-connectors-solaris-only-native/11/jdk=java16_default,label=native-solaris9-sparc/console
http://hudson.qa.jboss.com/hudson/view/EAP-native/job/eap5-native-connectors-solaris-only-native/11/jdk=java16_default,label=native-solaris10-x86/console

Downloaded from http://download.devel.redhat.com/devel/candidates/JBEAP5.0.0/JBEAP-5.1.0-CR3
Files uploaded 03-Sep-2010 12:50
jboss-ep-native-5.1.0.CR3-solaris10-i386.zip jboss-ep-native-5.1.0.CR3-solaris10-x86_64.zip jboss-ep-native-5.1.0.CR3-solaris9-sparc64.zip
jboss-ep-native-5.1.0.CR3-solaris10-sparc64.zip jboss-ep-native-5.1.0.CR3-solaris9-i386.zip jboss-ep-native-5.1.0.CR3-solaris9-sparc.zip

Solaris CR2 native bundles work without problem, probably mistake in building CR3 bundles. Renaming CR2 --> CR3 for Solaris natives should be the fastest solution.