The toolbar seems to be involved, since
- When the tab's header gets focused, the stacktrace contains the SWT
ToolBar class.
- When I customize the current perspective (Resource perspective) to
not allow Search command, thus dropping the Search toolbar, it takes
one less tab keystrokes to come back.
Also, while doing this and similar manipulations, I got an endless recursion:
at java.awt.ContainerOrderFocusTraversalPolicy.getLastComponent(ContainerOrderFocusTraversalPolicy.java:366)
at javax.swing.DefaultFocusManager.getLastComponent(DefaultFocusManager.java:119)
at javax.swing.LegacyGlueFocusTraversalPolicy.getLastComponent(LegacyGlueFocusTraversalPolicy.java:124)
at java.awt.ContainerOrderFocusTraversalPolicy.getLastComponent(ContainerOrderFocusTraversalPolicy.java:366)