It seems to be my bad. jibjib beta has known issue with some phones especially Samsung, Nokia and some old model of Sony. This issue has been reported by many people, e.g., @rerngrit, @thiti, @celerachan, @mormmam and @molek.
By helping of @molek, today I investigate the origin of this problem eventually. This is a bug in my code which only occurs if the system property
null. In other words, it means all no-camera phones and camera phones without taking picture support in JVM will see this bug.
jibjib beta now supports more devices from the oldest, CLDC 1.0/MIDP 2.0, CLDC 1.1/MIDP 2.0 to the latest, CLDC 1.1/MIDP 2.1. The recent one added in this beta is CLDC 1.1 and MIDP 2.1 should support Nokia 2600 Classic requested by @molek.