PackageLocation
Package names should match the directory they are declared in

Alternate names: PackageName

The problem

Java files should be located in a directory that ends with the fully qualified name of the package.

For example, classes in the package edu.oswego.cs.dl.util.concurrent should be located in: .../edu/oswego/cs/dl/util/concurrent.

Suppression

If necessary, the check may be suppressed by annotating the enclosing package declaration with @com.google.errorprone.annotations.SuppressPackageLocation, for example:

// package-info.java
@com.google.errorprone.annotations.SuppressPackageLocation
package com.google.my.pkg;

Note that package annotations must be located in a package-info.java file that must be built together with the package.