Error
Error Code:
ORA-29549
Oracle ORA-29549: Java Session Cleared
Description
The ORA-29549 error indicates that a Java class used by the current database session has been modified (redefined or dropped). This action invalidates the existing Java session state, forcing Oracle to clear it. This error typically occurs during development or deployment when Java classes are frequently changed.
Error Message
ORA-29549: class string . string has changed, Java session state cleared
Known Causes
3 known causesClass Redefinition
A Java class currently in use by the session was recompiled and redeployed, altering its definition.
Class Dropped
A Java class being utilized by the session was dropped from the database schema.
Schema Changes
Underlying schema objects that the Java class depends on have been modified or dropped, triggering a cascade of invalidations.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service