IssueTracker

Component used: androidx.room:room-runtime, androidx.room:room-compiler
Version used: 2.0.0
Devices/Android versions reproduced on: N / A

@Dao
interface Foo {
    @Query("SELECT * FROM bar")
    fun getAll(): List<Bar>

    @Transaction
    fun getTransactionAll(): List<Bar> {
        return getAll()
    }
}

It generates

Foo.DefaultImpls.getTransactionAll(this, )

which cause the error (illegal start of expression) because of the extra comma.