BPMN2 Modeler: unable to input more than 255 characters in text area

Description of problem:
In Diagram Editor,
unable to input more than 255 characters in text area, such as script field of Script Task and condition field of sequence flow,

This happens with JBDS installed on Windows.
This does not happen with JBDS installed on Linux.

Version-Release number of selected component (if applicable):
JBDS 8.0.1 / BPMN2 Modeler - Diagram Editor 1.1.4.201510212019
JBDS 9.0.0 / BPMN2 Modeler - Diagram Editor 1.2.1.201509111741(Early Access)

How reproducible:

use JBDS8/JBDS9 with the latest integration stack on Windows
(confirmed on Windows7/8)

Steps to Reproduce:
1. create script task and input more than 255 characters in script field
2.
3.

Actual results:

unable to input more than 255 characters

Expected results:

able to input more than 255 characters

Additional info:

The following limitation was introduced for text field.
https://www.eclipse.org/bpmn2-modeler/whatsnew/whatsnew-1.1.2.php
—
A new User Preference has been added to the Editor Behavior preference page, which allows Text fields to be limited to a maximum length. The default is 255 characters. Note that Multiline text boxes, such as those used for Documentation and Scripts, are not subject to this limit.
—

But this seems to be applied for text area unexpectedly only on Windows.

Therefore, workaround is to set 'Maximum text field length' to 0 via
menu Window -> Preferences -> BPMN2 -> Editor -> Behavior