Bug 45638 [preferences] overwrite mode setting
Needs to be moved to Java>Editor>Typing.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
* A named preference that holds a list of comma separated package names. The list specifies the import order used by
	 * the "Organize Imports" opeation.
	 * <p>
	 * Value is of type <code>String</code>: semicolon separated list of package
	 * names
	 * </p>
	 */
	public static final String ORGIMPORTS_IMPORTORDER= "org.eclipse.jdt.ui.importorder"; 
	
	/**
	 * A named preference that specifies the number of imports added before a star-import declaration is used.
	 * <p>
	 * Value is of type <code>Int</code>: positive value specifing the number of non star-import is used
	 * </p>
	 */
	public static final String ORGIMPORTS_ONDEMANDTHRESHOLD= "org.eclipse.jdt.ui.ondemandthreshold"; 
	/**
	 * A named preferences that controls if types that start with a lower case letters get added by the
	 * "Organize Import" operation.
	 * <p>
	 * Value is of type <code>Boolean</code>.
	 * </p>
	 */
	public static final String ORGIMPORTS_IGNORELOWERCASE= "org.eclipse.jdt.ui.ignorelowercasenames"; 
	/**
	 * A named preference that speficies whether children of a compilation unit are shown in the package explorer.
	 * <p>
	 * Value is of type <code>Boolean</code>.
	 * </p>
	 */