PsiJavaFile:SealedClassOldLanguageLevel.java
  PsiImportList
    <empty list>
  PsiModifierList:
    <empty list>
  PsiTypeElement:sealed
    PsiJavaCodeReferenceElement:sealed
      PsiIdentifier:sealed('sealed')
      PsiReferenceParameterList
        <empty list>
  PsiErrorElement:Identifier expected
    <empty list>
  PsiWhiteSpace(' ')
  PsiClass:A
    PsiModifierList:
      <empty list>
    PsiKeyword:class('class')
    PsiWhiteSpace(' ')
    PsiIdentifier:A('A')
    PsiTypeParameterList
      <empty list>
    PsiReferenceList
      <empty list>
    PsiReferenceList
      <empty list>
    PsiWhiteSpace(' ')
    PsiJavaToken:LBRACE('{')
    PsiJavaToken:RBRACE('}')