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This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.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

NPE on opening Schema Change Tracking landing page



Java Null Pointer Exception (NPE) is thrown on the screen and below exception is observed in the logs when you open Schema Change tracking landing page.

Error Messages

12:22:01,961 INFO [stdout] (Dispatcher-Thread-77) 2015-05-29 12:22:01,952 [/] [TABTHREAD3] [ ] [ XXXXX:01.02.01] (_System_SchemaChangeLog.Action) ERROR xxxxxxx.xx.xxxxxxx-xxxxxx.xx| [email protected] - Exception while identifying customer changes to schema.: code: -4461 SQLState: 42815 Message: [jcc][t4][10145][10897][3.65.77] Invalid parameter 4: Parameter index is out of range. ERRORCODE=-4461, SQLSTATE=42815
12:22:01,963 INFO [stdout] (Dispatcher-Thread-77) From: (
12:22:01,964 INFO [stdout] (Dispatcher-Thread-77) Caused by SQL Problems.
12:22:01,964 INFO [stdout] (Dispatcher-Thread-77) Problem #1, SQLState 42815, Error code -4461: [jcc][t4][10145][10897][3.65.77] Invalid parameter 4: Parameter index is out of range. ERRORCODE=-4461, SQLSTATE=42815
12:22:01,965 INFO [stdout] (Dispatcher-Thread-77) 2015-05-29 12:22:01,959 [/] [TABTHREAD3] [ ] [ XXXXX:01.02.01] ( internal.mgmt.Executable) ERROR xxxxxxx.xx.xxxxxxx-xxxxxx.xx| [email protected] - Exception
12:22:01,965 INFO [stdout] (Dispatcher-Thread-77) java.lang.NullPointerException
12:22:01,965 INFO [stdout] (Dispatcher-Thread-77) at com.pegarules.generated.activity.ra_action_pzgetallchanges_2081e63a18de2035ec8a11bba13ab63b.step12_circum0(
12:22:01,969 INFO [stdout] (Dispatcher-Thread-77) at com.pega.pegarules.session.internal.mgmt.Executable.getStream(

Steps to Reproduce

In Designer studio, navigate to System > Database > Schema Change Tracking landing page to observe the issue.

Root Cause

The root cause of this problem is a defect in Pegasystems’ code/rules.


The issue is resolved in Pega 7.1.8.

Published July 3, 2015 - 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