Failed to start build agent on Fedora 15

Hi,
We are trying to run a build agent on our Fedora 15 linux box, but the build agent kept crashing during initialization.
We had installed the latest java runtime from http://www.java.com/en/download/linux_manual.jsp, and the following was our log:

  1 [2011-09-06 03:37:18,307]   INFO -   jetbrains.buildServer.SERVER - Starting TeamCity agent
  2 [2011-09-06 03:37:18,313]   INFO - s.buildServer.agent.AgentMain2 - Agent home is /mnt/buildAgent
  3 [2011-09-06 03:37:18,353]   INFO - buildServer.agent.AgentMain2$1 - Refreshing jetbrains.buildServer.agent.AgentMain2$1@e32802: display name [jetbrains.buildServer.agent.AgentMain2$1@e32802]; startup date [Tue Sep 06 03:37:18 CST 2011]; root of context hierarchy
  4 [2011-09-06 03:37:18,764]   INFO - buildServer.agent.AgentMain2$1 - Bean factory for application context [jetbrains.buildServer.agent.AgentMain2$1@e32802]: org.springframework.beans.factory.support.DefaultListableBeanFactory@ed662d
  5 [2011-09-06 03:37:19,162]   INFO -    jetbrains.buildServer.AGENT - Calculating plugins signature for possible upgrade
  6 [2011-09-06 03:37:19,163]   INFO -    jetbrains.buildServer.AGENT - Build Agent version: 15772, plugins signature: 0
  7 [2011-09-06 03:37:19,297]   WARN -    jetbrains.buildServer.AGENT - Calculating CPU benchmark index...
  8 [2011-09-06 03:37:25,459]   WARN -    jetbrains.buildServer.AGENT - CPU benchmark index is set to 522
  9 [2011-09-06 03:37:25,548]   INFO - rver.plugins.PluginManagerImpl - ===========================================================
10 [2011-09-06 03:37:25,548]   INFO - rver.plugins.PluginManagerImpl - Scanning plugin folder: /mnt/buildAgent/plugins
11 [2011-09-06 03:37:25,550]   INFO - rver.plugins.PluginsCollection - Found plugin amazonEC2
12 [2011-09-06 03:37:25,551]   INFO - rver.plugins.PluginManagerImpl - Found 1 plugins: [amazonEC2]
13 [2011-09-06 03:37:25,551]   INFO - rver.plugins.PluginManagerImpl - Start intializing plugins...
14 [2011-09-06 03:37:25,551]   INFO - rver.plugins.PluginsCollection - No plugins were loaded with standalone classloaders
15 [2011-09-06 03:37:25,551]   INFO - rver.plugins.PluginsCollection - Load shared classloader for 1 plugins [amazonEC2]
16 [2011-09-06 03:37:25,620]   INFO - rver.plugins.PluginManagerImpl - Loaded 1 plugins: [amazonEC2]
17 [2011-09-06 03:37:25,620]   INFO - rver.plugins.PluginManagerImpl - ===========================================================
18 [2011-09-06 03:37:28,677]   INFO - t.AmazonInstanceMetadataReader - Amazon is not available. Amazon EC2 integration is not active: Failed to connect to http://169.254.169.254/2009-04-04. Read timed outRead timed out
19 [2011-09-06 03:37:28,678]   INFO - .amazon.agent.AmazonProperties - Fetched AmazonEC2 instance metadata:
20 [2011-09-06 03:37:28,681]   INFO - zon.agent.AmazonMetadataChecks - Amazon EC instance metadata contains no keys
21 [2011-09-06 03:37:28,681]   WARN - .amazon.agent.AmazonProperties - Fetched Amazon EC2 instance metadata does not contains required values. Probably this agent was not started inside Amazon EC2. Is proxy server used?
22 [2011-09-06 03:37:28,687]   INFO -    jetbrains.buildServer.AGENT - Start build agent
23 [2011-09-06 03:37:28,711]  ERROR - s.buildServer.agent.AgentMain2 - Failed to start build agent
24 java.lang.RuntimeException: SD3VLINUX: SD3VLINUX
25     at org.apache.xmlrpc.WebServer2.start(WebServer2.java:166)
26     at org.apache.xmlrpc.WebServer2.createStartedServer(WebServer2.java:81)
27     at jetbrains.buildServer.agent.impl.BuildAgentImpl.startAgentWebServer(BuildAgentImpl.java:670)
28     at jetbrains.buildServer.agent.impl.BuildAgentImpl.start(BuildAgentImpl.java:388)
29     at jetbrains.buildServer.agent.AgentMain2.startAgent(AgentMain2.java:110)
30     at jetbrains.buildServer.agent.AgentMain2.main(AgentMain2.java:27)
31     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
32     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
33     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
34     at java.lang.reflect.Method.invoke(Unknown Source)
35     at jetbrains.buildServer.agent.AgentMain.main(AgentMain.java:41)
36 [2011-09-06 03:39:09,381]   INFO -   jetbrains.buildServer.SERVER - Starting TeamCity agent
37 [2011-09-06 03:39:09,386]   INFO - s.buildServer.agent.AgentMain2 - Agent home is /mnt/buildAgent
38 [2011-09-06 03:39:09,416]   INFO - buildServer.agent.AgentMain2$1 - Refreshing jetbrains.buildServer.agent.AgentMain2$1@141b571: display name [jetbrains.buildServer.agent.AgentMain2$1@141b571]; startup date [Tue Sep 06 03:39:09 CST 2011]; root of context hierarchy
39 [2011-09-06 03:39:09,828]   INFO - buildServer.agent.AgentMain2$1 - Bean factory for application context [jetbrains.buildServer.agent.AgentMain2$1@141b571]: org.springframework.beans.factory.support.DefaultListableBeanFactory@1bde4