System.setProperty question

[Rumpa Giri <gi...@yahoo.com>]

Why the system properties are not being set programmatically?
   
  When I say does not take affect it happens only when we do things in a certain order.
   
  For example we need to connect to URL_CACERTS and URL_KS. URL_KS connection needs the keystore properties. For URL_CACERTS we just imported their public key to cacerts.
   
  Case 1: If we connect to URL_CACERTS first and then to URL_KS, connection to URL_KS is not successful. Somehow the setting keystore properties does not take affect. We have the following lines of code before doing the HttpURLConnection:
  System.setProperty("javax.net.ssl.keyStorePassword", _storePwd);
System.setProperty("javax.net.ssl.keyStore", _keystorePath);
   
  Case 2: If we connect to URL_KS first, and then URL_CACERTS, this sequence always works, somehow the keystore properties are set for the entire length.
   
  So to overcome this conflict, we added the properties to the tomcat service:
   
  If we start the tomcat service(or adding to catalina.bat) with the following parameters:
  -Djavax.net.ssl.keyStorePassword=changeit
-Djavax.net.ssl.keyStore=C:\certificates\pntKS
   
  These system properties setting takes affect, and order of conneting to URL_CACERTS or URL_KS does not matter.
   
  My question in how is connecting to URL_CACERTS first affecting the keystore properties?
   
  Without the above and doing the following only, its dependent on the order of connection. why?
   
  when we do the same thing by doing this it does not take affect 
  System.setProperty("javax.net.ssl.keyStorePassword", _storePwd);
System.setProperty("javax.net.ssl.keyStore", _keystorePath);
   
  Connecting to URL_CACERTS does not have any special code, we do plain HttpURLConnection and write and read from the http connection.
   
  What is happening behind the scene? Why does order matter?
   
  Thanks for reading.
  Rumpa Giri
   

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