javac/main/Arguments.java

91     private Set<JavaFileObject> fileObjects;
191         fileObjects = null;
242         this.fileObjects = toSet(files);
267         if (fileObjects == null) {
268             fileObjects = new LinkedHashSet<>();
273                 fileObjects.add(fo);
275         return fileObjects;
451                                     if (fileObjects == null)
452                                         fileObjects = new HashSet<>();
453                                     fileObjects.add(file);
794                 && ((fileObjects == null) || fileObjects.isEmpty())