This issue was reported manually by mmirilovic.
It already has 25 duplicates 


Build: NetBeans IDE 6.7.1 (Build 090909)
VM: OpenJDK 64-Bit Server VM, 14.0-b16, OpenJDK Runtime Environment, 1.6.0_18-b18
OS: Linux

User Comments:
GUEST: Open UML-Diagram File

GUEST: I try to open my saved UML project. This was successfull, but if I try to open diagramm under the project, I become this error message.

nabeou: I create a class diagram with UML but I cannot save it

GUEST: I wanted to open UML project, which I saved few moments sooner.

brichacekz: While opening saved UML Class Diagram, the error occurred.

GUEST: I was trying to open a previously created UML diagram. I am using NetBeans on Ubuntu 9.10.

hamming: I was dealing with my UML project when my input was not accepted.So I saved my files and restarted the NetBeans.Then I found my files are lost and a error was reported to me.

GUEST: I am getting above error when opening UML diagram

GUEST: Loaded a diagram built with UML-Plugin

GUEST: After creating some classes in UML I opened the generate code dialog. As there was no target project chosen, I pushed cancel. Then I opened New File ...  and canceled that dialog. After pushing that cancel button NetBeans quit. The UML classes were all deleted.

GUEST: Open UML class diagram

GUEST: So. The problem is that when I want to open UML project I can't do it, because there is no elements in "Model" "Diargams" and "Imported ELements". And when I try to open a file with my diagram - the error is showned me. Asus Eee PC 1005HA under Ubuntu 9,10 Karmic Koala.
I haven't got such problem with Windows XP Service Pack 2 and ASUS F3Jp




Stacktrace: 
javax.xml.stream.FactoryConfigurationError: Provider com.bea.xml.stream.MXParserFactory not found
   at javax.xml.stream.FactoryFinder.newInstance(FactoryFinder.java:72)
   at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:176)
   at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:92)
   at javax.xml.stream.XMLInputFactory.newInstance(XMLInputFactory.java:136)
   at org.netbeans.modules.uml.ui.support.diagramsupport.DiagramParser.getDiagramInfo(DiagramParser.java:85)
   at org.netbeans.modules.uml.ui.support.diagramsupport.ProxyDiagramImpl.getDiagramDetails(ProxyDiagramImpl.java:105)