COMPILATION_UNIT -> COMPILATION_UNIT [1:1]
|--PACKAGE_DEF -> package [1:1]
|   |--ANNOTATIONS -> ANNOTATIONS [1:40]
|   |--DOT -> . [1:40]
|   |   |--DOT -> . [1:29]
|   |   |   |--DOT -> . [1:23]
|   |   |   |   |--DOT -> . [1:12]
|   |   |   |   |   |--IDENT -> com [1:9]
|   |   |   |   |   `--IDENT -> puppycrawl [1:13]
|   |   |   |   `--IDENT -> tools [1:24]
|   |   |   `--IDENT -> checkstyle [1:30]
|   |   `--IDENT -> grammar [1:41]
|   `--SEMI -> ; [1:48]
|--IMPORT -> import [4:1]
|   |--DOT -> . [4:17]
|   |   |--DOT -> . [4:12]
|   |   |   |--IDENT -> java [4:8]
|   |   |   `--IDENT -> util [4:13]
|   |   `--IDENT -> Collection [4:18]
|   `--SEMI -> ; [4:28]
|--IMPORT -> import [5:1]
|   |--DOT -> . [5:17]
|   |   |--DOT -> . [5:12]
|   |   |   |--IDENT -> java [5:8]
|   |   |   `--IDENT -> util [5:13]
|   |   `--IDENT -> List [5:18]
|   `--SEMI -> ; [5:22]
`--INTERFACE_DEF -> INTERFACE_DEF [7:1]
    |--MODIFIERS -> MODIFIERS [7:1]
    |   `--LITERAL_PUBLIC -> public [7:1]
    |--LITERAL_INTERFACE -> interface [7:8]
    |--IDENT -> InputRegressionJavaInterface1 [7:18]
    |--EXTENDS_CLAUSE -> extends [7:48]
    |   |--IDENT -> List [7:56]
    |   |--COMMA -> , [7:60]
    |   `--IDENT -> Collection [7:62]
    `--OBJBLOCK -> OBJBLOCK [7:73]
        |--LCURLY -> { [7:73]
        `--RCURLY -> } [8:1]
