The input check of :READ fails when using special characters

Products

• CA Automic Workload Automation - Automation Engine

Issue/Introduction

When a string of special characters is set via the :PUT_READ_BUFFER > :READ mechanism, using an input check for the length, the Task containing the :READ can fail even if the string has the correct length.

For instance, using the following statement to write to the buffer:

:PUT_READ_BUFFER BUFFERED# = 'UÄK_Ä'
(5 characters)

And the following to read the input:

:READ &BUFFERED#,'06',
(check that the input is not longer than 6 characters)

This error is observed:

 Task <Task_name> fails with FAULT_OTHER: U00020400 Maximum length of parameter: '06' characters.

 

Using the following works correctly:

:PUT_READ_BUFFER BUFFERED# = '123456'
(6 characters)

Cause

The length input validation was based on bytes which can fail using UTF-8 because a character can need multiple bytes.

Resolution

Solution:

Update to a fix version listed below or a newer version if available.

Fix version:

Component(s): Automation Engine

Automation.Engine 24.4.2 HF1 - Available

Additional Information

The reference for this fix is DE176123