At this post, I describe how to use tzupdater to update tzdata for JAVA on Linux and Unix servers.....
How to send an SSL request to web service with Java based codes
You can compile this java codes to test an HTTPS service. At this post, I described briefly how to test an SSL encrypted web service with SSLPoke.class and also compile a new java class. ....
How to Configure HTTP/HTTPS Proxy Settings Java JVM
Many times java programs need to connect the internet. If your application server is not allowed to connect the internet then you should use proxy to open a gateway to connect internet over proxy.....