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Created attachment 279569 [details] The respective XML and XSD file When generating autocomplete from an XSD for XML configuration it causes Eclipse to crash when pressing 'ctrl + space' (for showing autocomplete suggestions). We thought the size of the XSD caused Eclipse to crash, but that did not turn out to be the cause of the multiple crashes. - Download the respective (ibisdoc.)xsd and (ConfigurationHelloBeautifulWorld.)xml file and put them in the same directory - Open the ConfigurationHelloBeautifulWorld.xml (note that noNamespaceSchemalocation referes to the ibisdoc.xsd file). - Go in between the Pipeline tags. - Then hit Shift+Space (to show code completion). - As you should see Eclipse is not responding (and has crashed).
I guess it's more an issue for WTP than Platform as it. So I'm moving the patch. Please also add details about the version of Java and Eclipse IDE you're using, and about your OS.
Which XML editor do you use exactly? The Eclipse Platform itself does not provide an XML editor, and it is likely that the problem has to be addressed by the respective project. For example, org.eclipse.wst.xml.ui provides an XML editor, but there are also others. To find out you can use the "Plugin Selection Spy" when having PDE installed. Open the Spy with Quick Assist (CMD+3, enter "Spy") when having the editor open.
I can reproduce the problem with WTP XML Editor. Please note that XML Editor from https://github.com/eclipse/wildwebdeveloper is working with your usecase.
New Gerrit change created: https://git.eclipse.org/r/153453
New Gerrit change created: https://git.eclipse.org/r/c/sourceediting/webtools.sourceediting/+/176870
