bug fixed: use String but Class for loading problem
bug fixed: use String but Class for loading problem

krororo/review,murashitas/review,orangain/review,kmuto/review,masawada/review,orangain/review,krororo/review,krororo/review,kmuto/review,kmuto/review,kdmsnr/review,kuad9/review_study,suzuki/review,murashitas/review,masawada/review,suzuki/review,takahashim/review,kuad9/review_study,takahashim/review