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NullPointerException in SafeURL.put(key,value) {inStandardsMode}



When a user checks a checkbox, the following error is thrown:

NullPointerException in SafeURL.put(key,value) {inStandardsMode}, {undefined}. 

Error Messages

NullPointerException in SafeURL.put(key,value) {inStandardsMode}, {undefined}

Steps to Reproduce

1. Create a flow
2. Create a Section
3. Add a repeat gird
4. Set the repeat gird source to property
5. Set the list/group to something.pxResults
6. Configure a field with a checkbox with ONCHANGE/Post Value.
7. Observe runtime behavior when you click the checkbox.

Root Cause

When the ajax request in the postValue() function is being formed the value of the pega.u.d.inStandardsMode is undefined instead of true.
In a working scenario, this variable is supposed to be initialized to true when a harness is loaded.
When the harness in question is loading, it runs into the below exception(logs) that stops it from executing any further hence skips the initialization of the variable.
2015-07-09 14:55:46,538 [   WebContainer : 59] [TABTHREAD2] [                    ] [      RRPFW:01.01.01] (ternal.mgmt.StreamBuilderTools) ERROR| xx60057 - Problem appending stream null Section 'Harness-ConfigureExpressions' execution error on page 'pyWorkPage' of  class 'PQR-FW-RRPFW-Work-Rating-DirectRating'. : An expression can only have at most one target
                at com.pegarules.generated.html_fragment.ra_stream_harness_configureexpressions_aa2e4d5df0dc5c428c1b16c1b8067e3c.execute(

Corrective action needs to be taken on one or more declare expressions that are invoked when the harness is loaded.


The explanation for this behavior is as follows: 

Identify the problematic declare expression(s) and correct it. In this case, changed it to be "Whenever used".
Suggest Edit

Published July 16, 2015 - Updated October 8, 2020

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