org.seasar.eclipse.common.util
インタフェース 
ExtensionAcceptor.ExtensionVisitor
クラス 
AdaptableUtil
ColorManager
ExtensionAcceptor
FontManager
GeometryUtil
ImageManager
LaunchUtil
LogUtil
PreferenceStoreUtil
ProjectUtil
ResouceUtil
StaticImageLoader
StatusUtil
SWTUtil
WorkbenchUtil