Package and class declaration versus the directory and file names

I would like to do the following checks:

1. Check that the package declaration matches the directory path,
   e.g. "package a.b.c;" means the source file must be in directory
   a/b/c.
2. Check that the first class defined in a file has a name that matches
   the filename, e.g. "class MyClass" must be defined in MyClass.java.

I didn't find these checks among the Checkstyle built-ins.  Did I miss them?
Or, has anyone else implemented them?

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