annotations/com/intellij/openapi/vfs/annotations.xml

<root>
    <item name='com.intellij.openapi.vfs.LocalFileSystem com.intellij.openapi.vfs.LocalFileSystem getInstance()'>
        <annotation name='org.jetbrains.annotations.NotNull'/>
    </item>
    <item name='com.intellij.openapi.vfs.VfsUtil java.lang.String getUrlForLibraryRoot(java.io.File)'>
      <annotation name='org.jetbrains.annotations.NotNull'/>
    </item>
    <item
        name='com.intellij.openapi.vfs.VirtualFile com.intellij.openapi.vfs.VirtualFile createChildDirectory(java.lang.Object, java.lang.String)'>
      <annotation name='org.jetbrains.annotations.NotNull'/>
    </item>
</root>