How to Analyze Java Thread Dumps

The content of this article was originally written by Tae Jin Gu on the Cubrid blog. 

When there is an obstacle, or when a Java based Web application is running much slower than expected, we need to use thread dumps. If thread dumps feel like very complicated to you, this article may help you very much. Here I will explain what threads are in Java, their types, how they are created, how to manage them, how you can dump threads from a running application, and finally how you can analyze them and determine the bottleneck or blocking threads. This article is a result of long experience in Java application debugging.

https://dzone.com/articles/how-analyze-java-thread-dumps