Bug 127791 [preferences] new compiler option COMPILER_PB_FALLTHROUGH_CASE
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/ProblemSeveritiesConfigurationBlock.java
int indentStep=  fPixelConverter.convertWidthInCharsToPixels(1);
		
		int defaultIndent= indentStep * 0;
		int extraIndent= indentStep * 2;
		String label;
		ExpandableComposite excomposite;
		Composite inner;
		
		
		
		label= PreferencesMessages.ProblemSeveritiesConfigurationBlock_section_code_style; 
		excomposite= createStyleSection(composite, label, nColumns);
		
		inner= new Composite(excomposite, SWT.NONE);
		inner.setFont(composite.getFont());
		inner.setLayout(new GridLayout(nColumns, false));
		excomposite.setClient(inner);
		
		label= PreferencesMessages.ProblemSeveritiesConfigurationBlock_pb_static_access_receiver_label; 
		addComboBox(inner, label, PREF_PB_STATIC_ACCESS_RECEIVER, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		
		label= PreferencesMessages.ProblemSeveritiesConfigurationBlock_pb_indirect_access_to_static_label; 
		addComboBox(inner, label, PREF_PB_INDIRECT_STATIC_ACCESS, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);	
		label= PreferencesMessages.ProblemSeveritiesConfigurationBlock_pb_unqualified_field_access_label; 
		addComboBox(inner, label, PREF_PB_UNQUALIFIED_FIELD_ACCESS, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		
		label= PreferencesMessages.ProblemSeveritiesConfigurationBlock_pb_undocumented_empty_block_label; 
		addComboBox(inner, label, PREF_PB_UNDOCUMENTED_EMPTY_BLOCK, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);