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[ADF, JDev12.1.3] On deployment: weblogic.application.ModuleException: java.lang.UnsupportedClassVersionError

FlattitDec 27 2024 — edited Dec 27 2024

Hallo,

when I run my ADF application in JDev, its deployment fails due to this error:

weblogic.application.ModuleException: java.lang.UnsupportedClassVersionError: myapp/view/servlet/ShowPdfServlet : Unsupported major.minor version 52.0

I guess that this error starts to manifest after an automatic Java update.

C:\Program Files\Java

C:\Program Files (x86)\Java

I tried to uninistall the new Java versions unsupported by my JDev version but it didn't help.

Could you kindly help me to solve this problem?

Thanks
Federico

Comments

Sdhamoth-Oracle Oct 16 2024

Check the error reported in “Control panel→System and Securities→Administrative Tools→Event Viewer” under Windows Log→Application.

How did you set the Instant Client path in PATH? In command prompt?

If you have set it in a command prompt, then make sure you start that command prompt as administrator (i.e. opening it by right clicking on command prompt icon and select “run as administrator” from popped context menu). Also, you should start ODBC data source administrator by executing “odbcad32” from that command prompt. Have you?

pczurak-JavaNet Oct 16 2024

Yes I started the cmd as run as Administrator.

I am using ODBC 64 bit not 32 bit.

I set the path using Windows UI (System properties), and if I open a cmd window and type set I can see the correct path.

starting “odbcad32” from the command line did not help.

I tried the same process on a different computer and got the same results.

Sdhamoth-Oracle Oct 16 2024

odbcad32 is for ODBC 64 bit on Windows x64 versions. You need to start odbcad32 from syswow64 directory to configure ODBC 32 bit on Windows x64 versions.

Have you checked the Application error logs in Event viewer? Did you find any error related to your ODBC application?

pczurak-JavaNet Oct 16 2024

I am running the 64bit version, if I start odbcad32 from syswow64 it starts the 32bit version.

There are no errors in the Event Viewer.

pczurak-JavaNet Oct 17 2024

I have tried basic driver version 19.24, but when I click on the Test button, I get the following error:

---------------------------
Testing Connection
---------------------------
Unable to connect
SQLState=S1000
[Oracle][ODBC][Ora]ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA

---------------------------
OK
---------------------------

Sdhamoth-Oracle Oct 17 2024

Looks like the service name is missing in your connection string.

Here is a sample of connection string:

sales=
(DESCRIPTION=
(ADDRESS= (PROTOCOL=tcp)(HOST=sales-server)(PORT=1521))
(CONNECT_DATA=
(SERVICE_NAME=sales.us.acme.com)))
The part that is highlighted with bold characters seems to be missing in your connection string. Fix it.

pczurak-JavaNet Oct 17 2024

This is what I am using.

JDEPRD =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = testoda0)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = jdeprd.test.com)
)
)

Sdhamoth-Oracle Oct 17 2024

Are you able to connect to your database using SQL*Plus?

pczurak-JavaNet Oct 17 2024

No:

F:\instantclient_23_5>sqlplus

SQL*Plus: Release 19.0.0.0.0 - Production on Thu Oct 17 07:55:39 2024
Version 19.24.0.0.0

Copyright (c) 1982, 2024, Oracle. All rights reserved.

Enter user-name: testuser
Enter password:
ERROR:
ORA-12560: TNS:protocol adapter error

Enter user-name:

pczurak-JavaNet Oct 17 2024

The issue is fixed

In the ODBC Driver Configuration.

For the TNS Service Name you cannot type the name even if you type it exactly as it shows in the dropdown, you must select it from the dropdown, otherwise it won't work.

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Added on Dec 27 2024
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