JBDevstudio crashes when an HTML page is opened for edit (in a bleeding edge environment)

JBDevstudio crashes from time to time, leaving only a dialog showing the JVM invocation command line in its wake.

The last message in the .log file is:

!ENTRY org.eclipse.jface 2 0 2008-05-28 21:18:31.564
!MESSAGE Keybinding conflicts occurred. They may interfere with normal accelerator operation.
!SUBENTRY 1 org.eclipse.jface 2 0 2008-05-28 21:18:31.564
!MESSAGE A conflict occurred for CTRL+SHIFT+G:
Binding(CTRL+SHIFT+G,
ParameterizedCommand(Command(org.springframework.ide.eclipse.beans.ui.editor.commands.searchBeanReferences,Spring Beans References Search,
,
Category(org.eclipse.search.ui.category.search,Search,Search command category,true),
,
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.wst.sse.ui.structuredTextEditorScope,,,system)
Binding(CTRL+SHIFT+G,
ParameterizedCommand(Command(org.jboss.tools.seam.ui.find.references,Find Seam References,
Find Seam References,
Category(org.eclipse.search.ui.category.search,Search,Search command category,true),
ActionDelegateHandlerProxy(null,org.jboss.tools.seam.ui.actions.FindSeamReferencesAction),
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.wst.sse.ui.structuredTextEditorScope,,,system)
Binding(CTRL+SHIFT+G,
ParameterizedCommand(Command(org.eclipse.jdt.ui.edit.text.java.search.references.in.workspace,References in Workspace,
Search for references to the selected element in the workspace,
Category(org.eclipse.search.ui.category.search,Search,Search command category,true),
,
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.ui.contexts.window,,,system)

This can be reliably reproduced by opening a HTML page in the editor.

I the log shows more on the next crash, I will append more info here.