OpenAm agent for tomcat can not read authservice url?

Question

amAuthContext:02/12/2014 04:58:20:946 下午 CST: Thread[main,5,main]

ERROR: Failed to obtain auth service url from server: null://null:null

I found it in "C:\tomcat_v6_agent\Agent_001\logs\debug"

And I'm sure the url that can read and visit,

Hers is the setting in OpenSSOAgentConfiguration.properties

com.iplanet.am.server.protocol=http

com.iplanet.am.server.host=gordon.demo.com

com.iplanet.am.server.port=8080

It already setup in my dns config.

Now I can't start my app tomcat , but openam was in another tomcat which is fine to work. Env is app tomcat in test.demo.com port 8086 openam tomcat in gordon.demo.com port 8080

And log in tomcat is like that

org.apache.tomcat.util.digester.Digester startElement
SEVERE: Begin event threw error
java.lang.StackOverflowError
    at java.lang.String.indexOf(String.java:1698)
    at java.net.URLStreamHandler.parseURL(URLStreamHandler.java:272)
    at sun.net.www.protocol.file.Handler.parseURL(Handler.java:67)
    at java.net.URL.<init>(URL.java:614)
    at java.net.URL.<init>(URL.java:482)
    at sun.misc.URLClassPath$FileLoader.getResource(URLClassPath.java:1034)
    at sun.misc.URLClassPath$FileLoader.findResource(URLClassPath.java:1024)
    at sun.misc.URLClassPath.findResource(URLClassPath.java:172)
    at java.net.URLClassLoader$2.run(URLClassLoader.java:551)
    at java.net.URLClassLoader$2.run(URLClassLoader.java:549)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findResource(URLClassLoader.java:548)
    at java.lang.ClassLoader.getResource(ClassLoader.java:1138)
    at java.net.URLClassLoader.getResourceAsStream(URLClassLoader.java:227)
    at javax.xml.parsers.SecuritySupport$4.run(SecuritySupport.java:94)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.xml.parsers.SecuritySupport.getResourceAsStream(SecuritySupport.java:87)
    at javax.xml.parsers.FactoryFinder.findJarServiceProvider(FactoryFinder.java:275)
    at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:247)
    at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:121)
    at org.forgerock.util.xml.XMLUtils.getSafeDocumentBuilder(XMLUtils.java:52)
    at com.sun.identity.shared.xml.XMLUtils.getSafeDocumentBuilder(XMLUtils.java:901)
    at com.sun.identity.shared.xml.XMLUtils.toDOMDocument(XMLUtils.java:168)
    at com.sun.identity.shared.xml.XMLUtils.toDOMDocument(XMLUtils.java:146)
    at com.iplanet.services.comm.share.ResponseSetParser.<init>(ResponseSetParser.java:49)
    at com.iplanet.services.comm.share.ResponseSet.parseXML(ResponseSet.java:118)
    at com.iplanet.services.comm.client.PLLClient.send(PLLClient.java:214)
    at com.iplanet.services.comm.client.PLLClient.send(PLLClient.java:95)
    at com.iplanet.services.naming.WebtopNaming.getNamingTable(WebtopNaming.java:1156)
    at com.iplanet.services.naming.WebtopNaming.updateNamingTable(WebtopNaming.java:1192)
    at com.iplanet.services.naming.WebtopNaming.getNamingProfile(WebtopNaming.java:1109)
    at com.iplanet.services.naming.WebtopNaming.getServerID(WebtopNaming.java:696)
    at com.iplanet.services.naming.WebtopNaming.getServerID(WebtopNaming.java:621)
    at com.iplanet.services.naming.WebtopNaming.updatePlatformServerIDs(WebtopNaming.java:1302)
    at com.iplanet.services.naming.WebtopNaming.updateNamingTable(WebtopNaming.java:1226)
    at com.iplanet.services.naming.WebtopNaming.getNamingProfile(WebtopNaming.java:1109)
    at com.iplanet.services.naming.WebtopNaming.getServerID(WebtopNaming.java:696)
    at com.iplanet.services.naming.WebtopNaming.getServerID(WebtopNaming.java:621)
    at com.iplanet.services.naming.WebtopNaming.updatePlatformServerIDs(WebtopNaming.java:1302)
    at com.iplanet.services.naming.WebtopNaming.updateNamingTable(WebtopNaming.java:1226)
    at com.iplanet.services.naming.WebtopNaming.getNamingProfile(WebtopNaming.java:1109)
    at com.iplanet.services.naming.WebtopNaming.getServerID(WebtopNaming.java:696)
    at com.iplanet.services.naming.WebtopNaming.getServerID(WebtopNaming.java:621)
    at com.iplanet.services.naming.WebtopNaming.updatePlatformServerIDs(WebtopNaming.java:1302)
    at com.iplanet.services.naming.WebtopNaming.updateNamingTable(WebtopNaming.java:1226)
    at 

    at .........

    at com.iplanet.services.naming.WebtopNaming.updatePlatformServerIDs(WebtopNaming.java:1302)

Answer 1

You don't have to set

com.iplanet.am.server.protocol=http

com.iplanet.am.server.host=gordon.demo.com

com.iplanet.am.server.port=8080

'ERROR: Failed to obtain auth service url from server: null://null:null'

is not a real error, the AuthContext API used by the agent to obtain an application token will fallback to use OpenAM's naming service.

Set debug level to 'message' in OpenSSOAgentBootstrap.property, it should give you a clue what's failing and why.