Hi,
looks like there is a conflict with one of your plugins.
009-05-22 13:25:17,280 ERROR [Thread-0] [AgentDaemon] Agent startup error:
org.hyperic.hq.agent.server.AgentStartException: Unable to initialize plugin manager: Plugin name=cxf already exists
at org.hyperic.hq.agent.server.AgentDaemon.startPluginManagers(AgentDaemon.java:695)
at org.hyperic.hq.agent.server.AgentDaemon.start(AgentDaemon.java:832)
at org.hyperic.hq.agent.server.AgentDaemon$RunnableAgent.run(AgentDaemon.java:930)
at java.lang.Thread.run(Thread.java:595)
This is a critical error and prevents the Agent from being start up correctly. Please check for the plugin cxf and disable it (e.g. add line plugins.exclude=cxf in agent.properties), to verify if you can startup your Agent correctly.