private static PsiImportStatementBase extractImport(
     final PsiJavaFile aFile, final boolean isStatic) {
   final PsiImportList importList = aFile.getImportList();
   assert importList != null : aFile;
   final PsiImportStatementBase[] statements =
       isStatic ? importList.getImportStaticStatements() : importList.getImportStatements();
   assert statements.length == 1 : aFile.getText();
   return statements[0];
 }