Just bring up the JUnit Test Results windows.

 No Accessible name :
   Class: javax.swing.JToolBar {  |  } 
   Class: org.netbeans.modules.junit.output.ResultTreeView {  |  } 
   Class: org.openide.explorer.view.TreeView$ExplorerTree {  |  } 

 No Accessible description :
   Class: javax.swing.JToolBar {  |  } 
   Class: org.netbeans.core.multiview.MultiViewTopComponent {   |  } 
   Class: org.netbeans.modules.junit.output.ResultTreeView {  |  } 
   Class: org.openide.explorer.view.TreeView$ExplorerTree {  |  } 

 Components with no LABEL_FOR pointing to it :
   Class: org.openide.explorer.view.TreeView$ExplorerTree {  |  } 

 Components with no mnemonic :
   Class: javax.swing.JToggleButton {  Filter On/Off |  Show Failures only } 
   Class: javax.swing.JToggleButton {  Output |  Output View (Alt+Shift+Right 
or Alt+Shift+Left) } 
   Class: javax.swing.JToggleButton {  Statistics |  Statistics View 
(Alt+Shift+Right or Alt+Shift+Left) }