### Question:
CollectionChange implements Serializable { public static Builder builder() { return new Builder(); } CollectionChange(
			CollectionId collectionId, CollectionId parentCollectionId,
			String displayName, FolderType folderType, boolean isNew); static Builder builder(); CollectionId getCollectionId(); CollectionId getParentCollectionId(); String getDisplayName(); FolderType getFolderType(); boolean isNew(); @Override final int hashCode(); @Override final boolean equals(Object object); @Override String toString();  }### Answer:
@Test(expected=NullPointerException.class) public void builderNeedsIsNew() { CollectionChange.builder() .collectionId(CollectionId.of(23)) .parentCollectionId(CollectionId.of(3)) .folderType(FolderType.DEFAULT_CALENDAR_FOLDER) .displayName("name") .build(); }