Description:
Administrator failed to start with error ,"java.net.SocketException: Connection reset".

Symptoms:
The following is recorded in the administrator.log file:

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2015 May 12 08:10:05:176 GMT +0000 Error [Administrator] AESDKJ-0000 [Thread-44]  com.tibco.ps.webapp.deployment.ServletEngineConfigException:
    at com.tibco.ps.webapp.deployment.impl.apache.TomcatServletEngine.isApplicationDeployed(TomcatServletEngine.java:405)
    at com.tibco.administrator.AdministratorPlugInManager.deployPlugIn(AdministratorPlugInManager.java:77)
    at com.tibco.administrator.AdministratorServlet$7.run(AdministratorServlet.java:744)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: Connection reset
    at com.tibco.ps.webapp.deployment.impl.apache.TomcatListTask.execute(TomcatListTask.java:99)
    at com.tibco.ps.webapp.deployment.impl.apache.TomcatServletEngine.isApplicationDeployed(TomcatServletEngine.java:400)
    ... 3 more
Caused by: java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(Unknown Source)
    at java.net.SocketInputStream.read(Unknown Source)
    at java.io.BufferedInputStream.fill(Unknown Source)
    at java.io.BufferedInputStream.read1(Unknown Source)
    at java.io.BufferedInputStream.read(Unknown Source)
    at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
    at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
    at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at com.tibco.ps.webapp.deployment.impl.apache.TomcatListTask.execute(TomcatListTask.java:70)
    ... 4 more

Cause By: java.net.SocketException: Connection reset

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Cause:
Possible cause is Tomcat port is being used.

Unable to start TIBCO Administrator. Error: "java.net.SocketException: Connection reset".

Free the Tomcat startup /shutdown ports.