#vulnerable code 
                                @Override
    public SymbolReference<TypeDeclaration> solveType(String name, TypeSolver typeSolver) {
        return JavaParserFactory.getContext(wrappedNode.getParentNode(), typeSolver).solveType(name, typeSolver);
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @Override
    public SymbolReference<TypeDeclaration> solveType(String name, TypeSolver typeSolver) {
        return JavaParserFactory.getContext(getParentNode(wrappedNode), typeSolver).solveType(name, typeSolver);
    }