Internet explorer? Java client? Yes! Oracle E-Business Suite (Oracle Apps) uses NPAPI client when accessed through a web browser for Oracle Forms/Reports based applications. Currently the only one browser that allows the NPAPI client to load is Internet Explorer.
Depending upon the complex JAVA dependencies your version of Oracle Applications must be supporting a particular version of java client. Although you can use switches to load latest versions of JRE for your legacy Oracle application, not always advisable as I’ve experienced non-responsiveness & freezing.
Windows 10 version 2004 (Released by late May 2020) & subsequent cumulative updates MUST be the reason, causes a major issue with Internet Explorer (as on 26th June 2020). Once you installed & removed a higher version of JRE, JRE 6.x will not load anymore on the browser. You can reset Internet Explorer, reset your JRE & what not? Trying to open the Oracle forms based application would show the plugin being loaded and that’s all!
Strangely, I can see this issue is with only JRE 6.x when JRE 7.x and later load as usual without any problems. So if you think you have tried “everything” already & landed on this page, let us give it another try.
You can divide the below tasks into two sections. If JRE 6.x is the only one java client remaining after removing all other versions & if the JAVA_HOME or other Java related keys are not set under environment variables, just delete the “Sun” & “Java” Folders from “AppData” “Roaming”, “LocalLow” & “Local” folders. You may delete the “Javasoft” entry from “Computer\HKEY_CURRENT_USER\SOFTWARE\JavaSoft” registry path also. Try to load Oracle forms based application and if the java client is NOT at all loading, follow the below instructions.
Uninstall Java Software
After uninstallation remove all remnants of Java software from the system.
This should open the appdata folder the current user.
Let us find and delete all “Java” and “Sun” folders and content within those folders. Please note, if you are using JAVA for other than accessing Oracle EBS, the following instructions may result disastrous situations. Hence I recommend you to continue with utter caution.
Delete “Sun” and “Java” folders as I have said before from “Roaming”, “LocalLow” & “Local”
and open the below path
Delete the “JavaSoft” folder completely.
Now switch to “Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\JavaSoft”
This is the registry path where 32 Bit version of Java software is installed. Delete this folder also (if exists after uninstallation).
Now you are ready to re-install the Java client once again. I would prefer a computer restart prior attempting re-installation, which is not mandatory.
After the re-installation of JRE, opening the internet explorer should ask you for permission to enable the client and Oracle EBS should able to load the NPAPI client properly. Do let me know whether it helped you.