Using Eclipse default workspace, go to Preferences > JBoss Tools > Web > Editors. Tick the "Use Source tab as a default for multi-tab editors" checkbox. Switch to a new Eclipse workspace: File > Switch Workspace > Other... Enter a new workspace location in the "Workspace" input field. Expand the "Copy Settings", and tick the "Preferences" to copy the preference over to the new workspace. Once the new workspace is launched, go to Preferences > JBoss Tools > Web > Editors Verify that the "Use Source tab as a default for multi-tab editors" checkbox is unticked .