Alternate names: TopLevelName
While the Java programming language requires that public top-level classes are
declared in a source file matching their name (e.g.: Foo.java for public
class Foo {}, it is possible to declare a non-public top-level class in a file
with a different name (e.g.: Bar.java for class Foo {}).
The Google Java Style Guide §2.1 states, “The source file name consists of the case-sensitive name of the top-level class it contains, plus the .java extension.”
Since @SuppressWarnings cannot be applied to package declarations, this
warning can be suppressed by annotating any top-level class in the compilation
unit with @SuppressWarnings("ClassName").