Thursday, January 18, 2024

The black/blank/blind window in runInstaller, dbca, sqldeveloper

 After installing the Linux 8.9 with default settings i obtained the black/blank/blind (it is difficult to explain) window in runInstaller, dbca and sqldeveloper. No content, no buttons :



Oracle Linux 8.9 in VirtualBox on my laptop.

Obviously the problem in Java settings.

$ java -version
openjdk version "17.0.9" 2023-10-17 LTS
OpenJDK Runtime Environment (Red_Hat-17.0.9.0.9-2.0.1) (build 17.0.9+9-LTS)
OpenJDK 64-Bit Server VM (Red_Hat-17.0.9.0.9-2.0.1) (build 17.0.9+9-LTS, mixed mode, sharing)

 

SOLUTION is 

 export _JAVA_OPTIONS='-Dsun.java2d.xrender=false'

The investigation opened that runInstaller and DBCA don't need the Java/JDK installed into OS. The runInstaller and DBCA use java from ORACLE_HOME. So i remove them but runInstaller and DBCA works well:

 

 

The SQLDeveloper needs the external JDK.

After install OpenJDK the SQLDeveloper will show content in the windows. You don't need the Oracle Java/JDK to run SQLDeveloper:

# yum install java-17-openjdk
...
# java -version
openjdk version "17.0.9" 2023-10-17 LTS
OpenJDK Runtime Environment (Red_Hat-17.0.9.0.9-2.0.1) (build 17.0.9+9-LTS)
OpenJDK 64-Bit Server VM (Red_Hat-17.0.9.0.9-2.0.1) (build 17.0.9+9-LTS, mixed mode, sharing)


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