Support Article

Scrolling fast on an Autocomplete field results causes error

SA-38487

Summary



User is using a "filtered" data page to source his autocomplete.

When user scrolls through the autocomplete suggestions after typing a character, encounters a pop-up with below error message.


Error Messages



A pop up with "There has been an issue; please consult your system administrator" ​"\

and the logs show
2017-04-24 1:1:1:1 [ttp-nio-9654-exec-38] [OpenPortal] [ ] [ Feedback:01.01.01] (ngineinterface.service.HttpAPI) ERROR abcdev.abc.abc|a.b.c.dxyz@abc - 1:1:1:1: com.pega.pegarules.pub.PRRuntimeError
com.pega.pegarules.pub.PRRuntimeError: PRRuntimeError
at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:712)
at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:465)
at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:3203)
at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:391)
at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1297)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1034)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:889)
at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequest(EngineAPI.java:331)
at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:829)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:331)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:274)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:251)
at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:278)
at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:223)
at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:589)
at com.pega.pegarules.web.impl.WebStandardImpl.doPost(WebStandardImpl.java:378)
at sun.reflect.GeneratedMethodAccessor84.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:370)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:411)
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:224)
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:273)
at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doPost(WebStandardBoot.java:121)
.
.
.
Caused by: java.lang.NullPointerException
at com.pegarules.generated.activity.ra_action_pzdogridaction_84f3e7348d7bf2bad1ec28065f8afa87.step1_circum0(ra_action_pzdogridaction_84f3e7348d7bf2bad1ec28065f8afa87.java:355)
at com.pegarules.generated.activity.ra_action_pzdogridaction_84f3e7348d7bf2bad1ec28065f8afa87.perform(ra_action_pzdogridaction_84f3e7348d7bf2bad1ec28065f8afa87.java:70)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3553)
at com.pegarules.generated.activity.ra_action_reloadsection_2a07dae44b0da69c8dd529e9fcfd3cfb.step5_circum0(ra_action_reloadsection_2a07dae44b0da69c8dd529e9fcfd3cfb.java:739)
at com.pegarules.generated.activity.ra_action_reloadsection_2a07dae44b0da69c8dd529e9fcfd3cfb.perform(ra_action_reloadsection_2a07dae44b0da69c8dd529e9fcfd3cfb.java:138)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3553)
at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:646)


Steps to Reproduce



1. Create autocompletesourced by a data page .
2. Check using "Search using data page parameter".
3. Pass a parameter to "filter" results.
4. At run time, type a character so that at least 200+ records.
5. Scroll through the results really quickly.

Root Cause



A defect in Pegasystems’ code or rules.

Resolution


This issue will be further addressed in Pega 7.3.1.

Published May 24, 2017 - Updated July 4, 2017


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