I was trying to setup an external HTTP server so that I can test SSL connections from my Java app. I’ve done this with Tomcat server before. It was easy, just follow the instructions on Tomcat’s document site. All done.

Environment
• Windows XP Professional
• Tomcat 6.0.29
• Java 1.6

Not this time. A host of problems:

1.   javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:150)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1584)

2.  SEVERE: Error initializing endpoint
java.lang.Exception: No Certificate file specified or invalid file format
	at org.apache.tomcat.jni.SSLContext.setCertificate(Native Method)
	at org.apache.tomcat.util.net.AprEndpoint.init(AprEndpoint.java:721)


3.  SEVERE: Error starting endpoint
java.lang.Exception: Socket bind failed: [730048] Only one usage of each socket address (protocol/network address/port) is normally permitted.  
    at org.apache.tomcat.util.net.AprEndpoint.init(AprEndpoint.java:647)
    at org.apache.tomcat.util.net.AprEndpoint.start(AprEndpoint.java:754)
    at org.apache.coyote.http11.Http11AprProtocol.start(Http11AprProtocol.java:137)
    at org.apache.catalina.connector.Connector.start(Connector.java:1087)

The last issue above is very weird. I ran netstat and no other apps are using the ports that Tomcat is trying to use.

I won’t bore you with the details, suffice to say, I just removed the native library, tcnative-1.dll, from the Tomcat folder and everything works.

Well, not everything, I’m still getting,

        javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

But, that is more tractable.

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