Issues with Java Web Application generated with GeneXus with iSeries as Database

Question

I am working on a project where we are encountering some strange behaviors. Not sure if there is an issue with our low code platform GeneXus or if it is more along the lines with Java such as the version of our JDK. Here are the issues we are having:

1. When performing a search over a data grid, randomly a 404 error comes up. This screen does not call another screen, it merely refreshes showing a list of data that meet our search criteria.

2. When one web page calls another passing parameters at random times some of the parms, not all, become the word NULL.

3. Screen loading behaviors where the screen slowly paints yet we have very low latency. In some cases the grids rows load really narrow and then spring up to the height defined. We've been unable to make them paint smoothly.

4. We randomly encounter a "Data Truncation" error. Yet when examining the data, both the fields involved in the update are defined the same and the data values involved are within the defined field lengths. Yet it works when we apply the substring function to the field.

We are behind a VPN and our application is not public facing. I've done a number of projects with GeneXus and generating Java and have never experienced these types of issues. I will say I don't do very many where an IBM iSeries matching is the database server. We have ensured our JT400.jar library is correct and up to date.

Any insight is greatly appreciated.

question from:https://stackoverflow.com/questions/66055441/issues-with-java-web-application-generated-with-genexus-with-iseries-as-database

Answer 1

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