METHOD_0 ( ) { org . apache . flink . util . IDENT_0 < java . lang . Class < ? > , java . lang . String > map = new org . apache . flink . util . METHOD_1 ( ) ; map . put ( STRING_0 , null , STRING_1 ) ; map . put ( STRING_0 , java . lang . String . class , STRING_1 ) ; "<AssertPlaceHolder>" ; } METHOD_2 ( ) { return IDENT_1 . entrySet ( ) . stream ( ) . filter ( org . apache . flink . util . METHOD_1 :: IDENT_2 ) . map ( Entry :: getKey ) . collect ( java . util . stream . IDENT_3 . METHOD_3 ( IDENT_4 :: new ) ) ; }
org . junit . Assert . assertThat ( map . METHOD_2 ( ) , org . hamcrest . Matchers . is ( org . hamcrest . Matchers . empty ( ) ) )