Bug 42625 Default for compiler compliance level
From a mail from Philippe: In order to reflect the migration to 1.4, compiler settings for JDT/Core projects should be: - compiler compliance 1.4 - source compatibility 1.3 - generated classfile compatibility 1.2 These are 1.4 compilers defaults anyway. JDT/UI got informed that their defaults in 1.4 compliant mode do not match expectation. Martin, can you please change our defaults.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CompilerConfigurationBlock.java
label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_field_hiding.label"); 
		addComboBox(composite, label, PREF_PB_FIELD_HIDING, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_non_externalized_strings.label"); 
		addComboBox(composite, label, PREF_PB_NON_EXTERNALIZED_STRINGS, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_incompatible_interface_method.label"); 
		addComboBox(composite, label, PREF_PB_INCOMPATIBLE_INTERFACE_METHOD, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_char_array_in_concat.label"); 
		addComboBox(composite, label, PREF_PB_CHAR_ARRAY_IN_CONCAT, errorWarningIgnore, errorWarningIgnoreLabels, 0);
				
		gd= new GridData();
		gd.widthHint= fPixelConverter.convertWidthInCharsToPixels(6);
		
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_max_per_unit.label"); 
		Text text= addTextField(composite, label, PREF_PB_MAX_PER_UNIT, 0, 0);
		text.setTextLimit(6);
		text.setLayoutData(gd);
		return composite;
	}
	private Composite createUnusedCodeTabContent(TabFolder folder) {
		String[] errorWarningIgnore= new String[] { ERROR, WARNING, IGNORE };
		
		String[] errorWarningIgnoreLabels= new String[] {
			PreferencesMessages.getString("CompilerConfigurationBlock.error"),  
			PreferencesMessages.getString("CompilerConfigurationBlock.warning"), 
			PreferencesMessages.getString("CompilerConfigurationBlock.ignore") 
		};
		
		String[] enabledDisabled= new String[] { ENABLED, DISABLED };
		
		int nColumns= 3;