Test case:

EXECUTE:
1. Create Java Project "test"
2. Create folder "test" in test project
3. Create file "test.html" in test folder
4. Open file test.html in Visual Page Editor
ASSERT: Visual Page Editor appears with test.html and jQuery Mobile Widget Palette on the right side

5. Press mouse on any palette element then drag it to empty space then drop, repeat any times.
FAIL: multiple same elements on palette