Bug 79321 Compiler preference page: disabling default compliance settings should leave 'disallow' combos disabled
I200411230838 and before: - Preferences > Java > Compiler: set compiler compliance level to 5.0 and check 'Use default compliance settings'. - Uncheck it again => the two 'Disallow identifiers...' combos become enabled - they should stay disabled with setting 'Error'. - Set source compatibility to 1.4 and back to 5.0 => 'Disallow ...' are OK now.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CompilerConfigurationBlock.java
addComboBox(inner, label, PREF_PB_UNNECESSARY_ELSE, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.pb_unnecessary_type_check.label"); 
		addComboBox(inner, label, PREF_PB_UNNECESSARY_TYPE_CHECK, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.pb_hidden_catchblock.label"); 
		addComboBox(inner, label, PREF_PB_HIDDEN_CATCH_BLOCK, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.pb_unused_throwing_exception.label"); 
		addComboBox(inner, label, PREF_PB_UNUSED_DECLARED_THROWN_EXCEPTION, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.pb_unused_throwing_exception_when_overriding.label"); 
		addCheckBox(inner, label, PREF_PB_UNUSED_DECLARED_THROWN_EXCEPTION_WHEN_OVERRIDING, enabledDisabled, extraIndent);
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.section.jdk50"); 
		excomposite= createStyleSection(composite, label, nColumns); 
		
		inner= new Composite(excomposite, SWT.NONE);
		inner.setLayout(new GridLayout(nColumns, false));
		excomposite.setClient(inner);
		
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.pb_unsafe_type_op.label"); 
		addComboBox(inner, label, PREF_15_PB_UNSAVE_TYPE_OPERATION, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.pb_final_param_bound.label"); 
		addComboBox(inner, label, PREF_15_PB_FINAL_PARAM_BOUND, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		
		label= PreferencesMessages.getString("ProblemSeveritiesConfigurationBlock.pb_inexact_vararg.label"); 
		addComboBox(inner, label, PREF_15_PB_VARARGS_ARGUMENT_NEED_CAST, errorWarningIgnore, errorWarningIgnoreLabels, defaultIndent);
		return sc1;
	}
	
	private Composite createJavadocTabContent(Composite folder) {