How to fix msg=ORA-01882: timezone region not found

After Greeting,

lets starts

1. Go Tools > Project Properties then 

2. (Project Properties) open select Run/Debug/Profile > in right you will see Default > Double click here or click Edit 
3. (Edit run configuration) select Launch Settings > in 'Java option' text item past this line -Duser.timezone="+02:00"    you can replace the timezone with your own one
4.close and re-open JDeveloper 
5. Run entire project 

deploy and try

 if it didn't work lets try the second solution 

 change the timezone region of your weblogic server

Go to the bin directory in your domain directory

for me it's located in C:\Oracle\Middleware\user_projects\domains\"mydomain"\bin\

Edit setDomainEnv.cmd

scroll untill you find

EXTRA_JAVA_PARAMETERS

Add -Duser.timezone="+02:00" 

you can replace the timezone with your own one

save file and restart weblogic server 

try and give me the feedback 

thanks,