Technically what is the main difference between Oracle JDK and OpenJDK

Question

I have been using OpenJDK for ages  initially for small projects where it has no problems  But since I started to play with it for big toys  I started to notice random unknown fatal error and crashes  with H 264 codecs  etc    and it was a nightmare till then to get ride of system crash fatal errors caused by OpenJDK   After getting completely frustrated and tired with OpenJDK  I finally decided to switch into Oracle JDK 7  Since then my fatal errors crashes were gone  I am still doing trace to see if it occurs  but I never got those system crashes yet   Now I am wondering  if OpenJDK is only a license issue  why is stability impossible with it   Why does OpenJDK keep bugs alive  inside their stable releases  but claiming that its clone of Oracle JDK  which it is not really   then what really technically separates OpenJDK from Oracle JDK   only quick features availability  Or focused on stability reliability

User · Answer

OpenJDK is a reference model and open source, while Oracle JDK is an implementation of the OpenJDK and is not open source. Oracle JDK is more stable than OpenJDK.

OpenJDK is released under GPL v2 license whereas Oracle JDK is licensed under Oracle Binary Code License Agreement.

OpenJDK and Oracle JDK have almost the same code, but Oracle JDK has more classes and some bugs fixed.

So if you want to develop enterprise/commercial software I would suggest to go for Oracle JDK, as it is thoroughly tested and stable.

I have faced lot of problems with application crashes using OpenJDK, which are fixed just by switching to Oracle JDK

User · Answer

Technical differences are a consequence of the goal of each one  OpenJDK is meant to be the reference implementation  open to the community  while Oracle is meant to be a commercial one   They both have  almost  the same code of the classes in the Java API  but the code for the virtual machine itself is actually different  and when it comes to libraries  OpenJDK tends to use open libraries while Oracle tends to use closed ones  for instance   the font library

[java] Technically what is the main difference between Oracle JDK and OpenJDK?

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