Bug 113239 new compiler option 'fatalOptionalError'
* COMPILER / Treating Optional Error as Fatal * When enabled, optional errors (i.e. optional problems which severity is set to "error") will be treated as standard * compiler errors, yielding problem methods/types preventing from running offending code until the issue got resolved. * When disabled, optional errors are only considered as warnings, still carrying an error indication to make them more * severe. Note that by default, errors are fatal, whether they are optional or not. * - option id: "org.eclipse.jdt.core.compiler.problem.fatalOptionalError" * - possible values: { "enabled", "disabled" } * - default: "enabled" </pre>
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaBuildConfigurationBlock.java
String[] errorWarning= new String[] { ERROR, WARNING };
		
		String[] errorWarningLabels= new String[] {
			PreferencesMessages.JavaBuildConfigurationBlock_error,  
			PreferencesMessages.JavaBuildConfigurationBlock_warning
		};
		
		String[] errorWarningIgnore= new String[] { ERROR, WARNING, IGNORE };
		String[] errorWarningIgnoreLabels= new String[] {
			PreferencesMessages.JavaBuildConfigurationBlock_error,  
			PreferencesMessages.JavaBuildConfigurationBlock_warning, 
			PreferencesMessages.JavaBuildConfigurationBlock_ignore
		};
		
		int nColumns= 3;
		
		final ScrolledPageContent pageContent = new ScrolledPageContent(parent);
		GridLayout layout= new GridLayout();
		layout.numColumns= nColumns;
		layout.marginHeight= 0;
		layout.marginWidth= 0;
		
		Composite composite= pageContent.getBody();
		composite.setLayout(layout);
		
		String label= PreferencesMessages.JavaBuildConfigurationBlock_section_general; 
		ExpandableComposite excomposite= createStyleSection(composite, label, nColumns); 
		
		Composite othersComposite= new Composite(excomposite, SWT.NONE);
		excomposite.setClient(othersComposite);