METHOD_0 ( ) { "<AssertPlaceHolder>" ; } METHOD_1 ( IDENT_0 . List ) { if ( ( IDENT_1 == null ) || ( IDENT_1 . isEmpty ( ) ) ) return IDENT_1 ; IDENT_0 . Map < java . lang . String , IDENT_0 . List < java . lang . String > > IDENT_2 = new IDENT_0 . HashMap ( ) ; for ( java . lang . String IDENT_3 : IDENT_1 ) { IDENT_2 . METHOD_2 ( METHOD_3 ( IDENT_3 ) , ( k ) -> new IDENT_0 . ArrayList < > ( ) ) . add ( IDENT_3 ) ; } return IDENT_2 . values ( ) . stream ( ) . METHOD_4 ( List :: stream ) . collect ( java . util . stream . IDENT_4 . toList ( ) ) ; }
org . junit . Assert . assertEquals ( java . util . Collections . emptyList ( ) , s . METHOD_1 ( java . util . Collections . emptyList ( ) ) )