Testsuite hangs regularly on MS Windows in ANT target 'tests-jboss-negotiation'

13:04:49 tests-jboss-negotiation:
13:04:49      [echo] creating negotiation config from default
13:04:49      [copy] Copying 465 files to W:\workspace\eap-5.3-as-testsuite-Win-matrix-OracleJDK7\dbc1b6ce\jboss-eap-5.3-src\jboss-as\build\output\jboss-5.3.0\server\negotiation
13:04:50      [copy] Copied 115 empty directories to 2 empty directories under W:\workspace\eap-5.3-as-testsuite-Win-matrix-OracleJDK7\dbc1b6ce\jboss-eap-5.3-src\jboss-as\build\output\jboss-5.3.0\server\negotiation
13:04:50      [echo] Overwriting config descriptors
13:04:50      [copy] Copying 1 file to W:\workspace\eap-5.3-as-testsuite-Win-matrix-OracleJDK7\dbc1b6ce\jboss-eap-5.3-src\jboss-as\build\output\jboss-5.3.0\server\negotiation
13:04:53      [java] Editing W:\workspace\eap-5.3-as-testsuite-Win-matrix-OracleJDK7\dbc1b6ce\jboss-eap-5.3-src\jboss-as\build\output\jboss-5.3.0\server\negotiation\deployers\jbossweb.deployer\META-INF\war-deployers-jboss-beans.xml
13:04:53      [echo] org.jboss.security.negotiation.server.principal = HTTP/dev96
13:04:55      [java] Starting Kerberos controll process.
13:05:04      [java] Starting GSSTestServer - login
13:05:04      [java] Debug is  true storeKey true useTicketCache false useKeyTab false doNotPrompt false ticketCache is null isInitiator true KeyTab is null refreshKrb5Config is true principal is gsstestserver/xxx@JBOSS.ORG tryFirstPass is false useFirstPass is false storePass is false clearPass is false
13:05:04      [java] Refreshing Kerberos configuration
13:05:04      [java] 		[Krb5LoginModule] user entered username: gsstestserver/xxx@JBOSS.ORG
13:05:04      [java] 
13:05:04      [java] Incomming connection.
13:05:04      [java] Stop command: false
13:05:06      [java] principal is gsstestserver/xxx@JBOSS.ORG
13:05:06      [java] EncryptionKey: keyType=3 keyBytes (hex dump)=0000: AD 5E 86 E3 85 9E 98 F8                            .^......
13:05:06      [java] 
13:05:06      [java] EncryptionKey: keyType=16 keyBytes (hex dump)=0000: 86 5D 97 32 8F 62 76 9B   CE 02 E3 B6 AB 49 4C 31  .].2.bv......IL1
13:05:06      [java] 0010: 51 9D 51 EC DC 13 40 F8                            Q.Q...@.
13:05:06      [java] 
13:05:06      [java] Added server's keyKerberos Principal gsstestserver/xxx@JBOSS.ORGKey Version 0key EncryptionKey: keyType=3 keyBytes (hex dump)=
13:05:06      [java] 0000: AD 5E 86 E3 85 9E 98 F8                            .^......
13:05:06      [java] 
13:05:06      [java] 
13:05:06      [java] 		[Krb5LoginModule] added Krb5Principal  gsstestserver/xxx@JBOSS.ORG to Subject
13:05:06      [java] Added server's keyKerberos Principal gsstestserver/xxx@JBOSS.ORGKey Version 0key EncryptionKey: keyType=16 keyBytes (hex dump)=
13:05:06      [java] 0000: 86 5D 97 32 8F 62 76 9B   CE 02 E3 B6 AB 49 4C 31  .].2.bv......IL1
13:05:06      [java] 0010: 51 9D 51 EC DC 13 40 F8                            Q.Q...@.
13:05:06      [java] 
13:05:06      [java] 
13:05:06      [java] 		[Krb5LoginModule] added Krb5Principal  gsstestserver/xxx@JBOSS.ORG to Subject
13:05:06      [java] Commit Succeeded 
13:05:06      [java] 
13:05:06      [java] Authentication succeed
13:05:06      [java] Server started on port 10952
13:05:06      [java] Waiting for client connection
13:05:07 [server:start] Starting server "negotiation", with command (start timeout is 800 seconds ): 
13:05:07 [server:start] T:\opt\windows\jdk1.7.0_last\bin\java -cp W:\workspace\eap-5.3-as-testsuite-Win-matrix-OracleJDK7\dbc1b6ce\jboss-eap-5.3-src\jboss-as\build\output\jboss-5.3.0\bin\run.jar;t:\opt\windows\jdk1.7.0_last\lib\tools.jar -Xms128m -Xmx512m -XX:MaxPermSize=512m -XX:-UseGCOverheadLimit -Dsun.security.krb5.debug=true -Dgsstestserver.port=10952 -Djava.security.krb5.conf=W:\workspace\eap-5.3-as-testsuite-Win-matrix-OracleJDK7\dbc1b6ce\jboss-eap-5.3-src\jboss-as\build\output\jboss-5.3.0\server\negotiation\krb5.conf -Djboss.security.disable.secdomain.option=true -Djboss.server.log.threshold=DEBUG org.jboss.Main -c negotiation -b 10.16.92.4 -g DefaultPartition -u 227.43.67.33
13:05:27 [server:start] Server started.
13:05:27     [junit] Running org.jboss.test.security.test.NegotiationTestCase
13:05:27     [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
18:25:12 Build timed out (after 480 minutes). Marking the build as aborted.
18:25:12 Build was aborted