Wednesday, July 18, 2018

Enable TLS 1.1 & TLS 1.2 in Java JDK

Starting from Java JDK 1.8. XX versions TLS 1.1 & TLS 1.2 is enabled by default.

But, what if you are in JDK 1.7. XX versions you will have to go enable them explicitly.

How you do it? One way is that you can enable from Java Control panel console.


Navigate to JAVA_HOME\jre\bin folder and execute javacpl.exe from command prompt.


 Navigate to JAVA_HOME\jre\bin folder and execute ./ControlPanel from terminal.

This will render Java control panel console. Click on Advanced tab and scroll down where you see Advanced Security settings section.

Select the check boxes associated with "Use TLS 1.1" & "Use TLS 1.2" then click Apply and OK.

Siva Pokuri.

Friday, June 29, 2018

Weblogic Stuck threads

One way to check if you have stuck threads is through Weblogic Admin console.

  1. Login to weblogic admin console with admin credentials.
  2. Expand Environment and click on Servers in the left menu
  3. Click on the Admin server or any managed server you want to check the stuck threads
  4. Click on the Monitoring tab in the server properties
  5. click on Threads tab.
  6. Check the Health column in Self-Tuning Thread Pool table. If it says OK there are no stuck threads.
  7. If Health column value shows "Warning" there are stuck threads in JVM.
  8. Next thing is that you will have to find the root cause of the stuck threads. For that JVM thread dump needs to be taken.
  9. There is a tool called jstack starting from JDK 1.6 version.
  10. Find out the process ID of the weblogic service and execute "jstack <<PID>> > threaddump.log"command.
  11. Above command generates threaddump.log file with JVM thread dump.
  12. Check the STUCK threads and fix the issue. It might be in application code or connection to external services.
Happy debugging.

Siva Pokuri.

Wednesday, June 13, 2018

List Of Oracle Identity Manager 12C Connector

                                  Oracle Identity Manager 12C Connector Downloads

Here is below link where you can download Oracle Identity Manager 12C Connectors

Below are list of Oracle Identity Manager 12C Connectors