SmartClient Forums - Technical Q&A

NullPointerException in SQLDataSource.getSQLClause with customSQL field

claudiobosticco — Fri, 01 May 2026 21:30:05 GMT

SmartClient Version: v13.1p_2026-04-24/Enterprise Deployment (built 2026-04-24)

I’m encountering an intermittent NullPointerException in my custom server dataSource when working with SQLDataSource.getSQLClause:

Code:

Caused by: java.lang.NullPointerException
    at com.isomorphic.datasource.IncludeFromDefinition.create(IncludeFromDefinition.java:118)
    at com.isomorphic.datasource.DSRequest.buildIncludeFromDefinitions(DSRequest.java:8527)
    at com.isomorphic.datasource.DSRequest.buildFieldData(DSRequest.java:5947)
    at com.isomorphic.sql.SQLDataSource.getSQLClause(SQLDataSource.java:5707)
    at com.isomorphic.sql.SQLDataSource.getSQLClause(SQLDataSource.java:5671)

The exception occurs when executing:

Code:

SQLDataSource.getSQLClause(SQLClauseType.Values, dsRequest)

where dsRequest is built server-side, of type update, with criteria composed of a single primary key and some dynamic fields.
In some cases, these values contain only one field to update, but that field may be customSQL, so it will not appear in the generated SQL (and that’s exactly what I want to detect, to avoid executing a useless update).

Normally everything works, but I’d say I can frequently reproduce this error if I trigger two requests close together. The dataSource uses my custom serverConstructor via Spring.

Do you happen to have any idea what could be causing the problem? I’m not really sure how to debug this further.

Issues found in v15.0 examples

claudiobosticco — Fri, 01 May 2026 20:07:31 GMT

SmartClient Version: SNAPSHOT_v15.0d_2026-04-30/AllModules Development Only (built 2026-04-30)

Hi, I wanted to report that among the new examples in version 15.0, a couple are now returning errors:

variantsOverviewNewSample
inlineControlsNewSample

Aside from that, it’s a nice addition (although I notice there are still some styles that are work in progress).

The new file upload features also look very good!

I also see that the option to view examples in TypeScript isn’t working yet.
However, I assume the intention is to improve support, since TypeScript could be a strong advantage when using AI.

Unexpected multiple requests with file upload

claudiobosticco — Tue, 28 Apr 2026 14:58:10 GMT

SmartClient Version: v13.1p_2026-04-24/AllModules Development Only (built 2026-04-24)

Hi, from the documentation: “Due to browser security restrictions, at most one request with a file upload can be sent in a queue.”

However, I’m seeing that this doesn’t seem to be the case.

With the following use case, if I fill in the fields and select a file, I see two separate requests, without any queue (and no warnings in the dev console):

Code:

isc.DynamicForm.create({
    ID: "aForm",
    width: 400,
    height: 100,
    top: 0,
    left: 20,
    dataSource: "uploadTest",
    items: [
        {name: "title"}
    ]
});

isc.DynamicForm.create({
    ID: "uploadForm",
    width: 400,
    height: 100,
    top: 50,
    left: 20,
    dataSource: "uploadedFiles",
    items: [
        {name: "uploadTestId"},
        {name: "file", title: "File"}
    ]
});


isc.Button.create({
    title: "Save Form",
    top: 130,
    left: 20,
    click: function(){
        isc.RPCManager.startQueue()
        aForm.save()
        uploadForm.save()
        isc.RPCManager.sendQueue()
    }
});

I’m not sure whether there’s an issue or if I’m missing something.

15.0d SmartClient Reference does not load, syntax error

Blama — Mon, 27 Apr 2026 07:47:03 GMT

Hi Isomorphic,

The 15.0d SmartClient Reference (SNAPSHOT_v15.0d_2026-04-25) does not load in Edge147 or FF150, there is a typo, either the ")" or the "b".

Code:

setAIAccess(hasAccess, extraData);})b.setAIAccess(false)};

Best regards
Blama

Unexpected filterEditor movement with frozen columns

claudiobosticco — Mon, 27 Apr 2026 07:03:37 GMT

SmartClient Version: v13.1p_2026-04-24/AllModules Development Only (built 2026-04-24)

Hi, I noticed an issue with column freezing in grids when using the filterEditor.
Try an example like this: https://smartclient.com/smartclient-...tchOperationFS , then click on "show filter row", widen the columns until you get a horizontal scrollbar, and then freeze any column.
If you try to scroll horizontally, you’ll see that the filter editor moves even for the frozen column.