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Default SSL context init failed: null

zhao kang yang
Posts: 1
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I am trying to open a SSL connection from a tomcat server (called it TC1) that locate within a DMZ to the other tomcat server (called it TC2) which is located in external network.

I got the following in the TC1 system.out,

WARNING: Servlet.service() for servlet HelloWorld threw exception Default SSL context init failed: null
at Source)
at Source)
(Unknown Source)
at Sou
at HelloWorld.doGet(
at javax.servlet.http.HttpServlet.service(
at javax.servlet.http.HttpServlet.service(
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
at org.apache.coyote.http11.Http11Processor.process(
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
at org.apache.tomcat.util.threads.ThreadPool$
at Source)

Here is the servlet i place in TC1 which open a SSL connection to TC2.

import javax.servlet.*;
import javax.servlet.http.*;

public class HelloWorld extends HttpServlet {
public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();
out.println("Hello World");

URL url = new URL("");
URLConnection con = url.openConnection();


I have used java keytool to generate a self-signed cert and also a keystore in TC2. Below is the Connector element of the server.xml of TC2

<Connector port="8443"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" disableUploadTimeout="true"
acceptCount="100" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS"
keystoreFile="C:\program files\Tomcat 5.5.

I also imported the self-signed cert into the truststore of machine which host the TC1. The place i store the self-signed cert of TC2 is jre_home\lib\security\cacerts

I think i have setup the SSL correctly.

Does anyone know how to resolve the exception " Default SSL context init failed: null" I mentioned above?

Thanks for your help

zhao kang
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