Skip to main content

This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.

Support Article

SQLException: ORA-29548: Java system class reported



Error occurs when installing User Defined Functions (UDF) (the installation was performed following instructions from the link:

Error Messages

Encountered database error attempting to load jar into Oracle: ORA-29548: Java system class reported: could not identify release specified in classes.bin 
java.sql.SQLException: ORA-29548: Java system class reported: could not identify release specified in classes.bin

Steps to Reproduce

Install the UDF.

Root Cause

The issue occurred due to the ​​​​​mismatch between the JDK version used by the Oracle database server and the Java classes version imported to the database.


Use the below query to verify the JDK version used by Oracle.


The JDK version used by Oracle database must be higher than the version used when compiling the classes that are imported to the database.

This issue occurs if the JDK version in the Oracle database is lower than the version used to compile the UDF classes that are imported.

Use the below command to verify the JDK version used when a class is compiled.

javap -verbose <class name>

Search for the major and minor versions with that of the table to determine the JDK version.

Published March 24, 2019 - Updated October 8, 2020

Was this useful?

0% found this useful

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us