Issue/Introduction:
In SGME 5.4.2.5, after login to the GUI with username, password and enable password, the page unable to load with the following error message.
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
com.bluecoat.director.new_sdk.SSH2AgentMaverick.disconnect(SSH2AgentMaverick.java:379)
com.bluecoat.director.new_sdk.CliSession.disconnect(CliSession.java:166)
com.bluecoat.director.new_sdk.CliSession.openSession(CliSession.java:618)
com.bluecoat.director.new_sdk.CliSession.connect(CliSession.java:123)
com.bluecoat.director.new_sdk.CliSessionPool.connect_with_retries(CliSessionPool.java:972)
com.bluecoat.director.new_sdk.CliSessionPool.startUp(CliSessionPool.java:104)
com.bluecoat.director.new_sdk.ConnectionManager.connect(ConnectionManager.java:195)
com.bluecoat.director.new_sdk.MgmtNode.connect(MgmtNode.java:2718)
webstart.src.authmodule.WebstartApplication.initStart(WebstartApplication.java:37)
webstart.src.authmodule.LoginServlet.doPost(LoginServlet.java:194)
javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.28 logs.
Resolution:
If the loopback interface is disabled, enable the interface using the command below,
director # config terminal
director (config) # no interface lo shutdown
director (config) # write mem
Verify the interface is enabled with the command below,
director (config) # sh interface lo
Interface lo:
Enabled: yes
IP address:
Type: Loopback
MTU size: 16436 bytes
Statistics:
Packets received: 89880
Bytes received: 37151231
Multicast packets received: 0
Input errors: 0
Packets received with bad protocol: 0
Packets received not matching filters: 0
Packets received with short frames: 0
Packets sent: 89880
Bytes sent: 37151231
Output errors: 0
Packets dropped on output: 0
Collisions: 0
Underruns: 0
Note: This is the solution when loopback is disabled.