Jdeveloper 12c / SOA 12c - Local MDS storage location change from 11g

Jdeveloper provides a capability to localize the MDS location through adf-config.xml.

MDS can be of DB or File type. If we use the file type a local directory will be referenced for the shared artifacts.

In 11g, jdeverloper default MDS local store is at 

middleware_home\jdeveloper\integration\seed

In 12c this path has been changed to 

middleware_home\soa\integration\jdeveloper\seed\

in 12c, Jdev is installed @ 

middleware_home\jdeveloper\

This observation is done after I installed SOA 12c quick start. 

Find saved DB passwords from Jdeveloper IDE connections

Find a saved DB password from Jdeveloper IDE connections.

Jdeveloper stores the DB connection details internally. (I am not sure where). To extract the password there are several options.

1. Export resource (.crx) file from one Jdeveloper and re-import into another.
• Sometimes you don't need the password. you can export the connections from one Jdeveloper and import them into another.
• http://sharatverma.blogspot.com/2010/11/jdeveloper-importing-database.html
2. Decrypt the password Option 1
• Export resource (.crx) file. 
• Open it with winzip and extract the cwallet.sso
• Extract passwords from the wallet.
• http://sharatverma.blogspot.com/2010/11/jdeveloper-importing-database.html
• http://todayguesswhat.blogspot.com/2012/06/decrypt-dump-contents-of-cwalletsso.html
3. Decrypt the password Option 2
• Use Jdeveloper extension - 'showmepassword'
• http://show-me-password.tomecode.com/

Another noteworthy post - Stackoverflow - Stored connection encryption

Jdeveloper Memory Usage Tweaks

Jdeveloper is a memory hog.

Update 1:
I also encountered a strange issue. Jdeveloper 11.1.1.3 64-bit (yes, its 2 yrs old at this point) does not work well with JDK jdk1.6.0_30.

"Unable to launch the Java Virtual Machine" - Discussed here


Tweak Jdev memory settings
http://bexhuff.com/2012/09/jdeveloper-memory-and-performance

Tweak Java for better UI performance
http://themindstorms.wordpress.com/2009/01/21/advanced-jvm-tuning-for-low-pause/