Process is deformed when special characters are used

Description of problem:
When special characters are inputted into specific fields, they are not preserved. Some inputs are corrupting process completely - i.e. unable to open.

Version-Release number of selected component (if applicable):
JBDS Version: 7.1.1.GA
+
BPMN2 Modeler - Diagram Editor 1.0.2.201402102317 org.eclipse.bpmn2.modeler.feature.feature.group Eclipse.org
How reproducible:
always

Steps to Reproduce:

1) Set Characters(See attached fie: Characters.txt) into "Description -> Attributes -> Name" or "Process -> Attributes -> Id".
2) Save the process, close it, open it again

Following cases are causing the issue:

Characters1) Characters1 is changed to Characters2.
Characters3) Nothing in Name field. Characters3 is changed Characters4 in Id field.
Characters5) I can't open BPMN file.(See attached fie: Fig1.png)

Actual results:

Process is getting modified/corrupted
Expected results:
Special characters are not causing any "harm" to the process definition

Additional info: