@Test
public void testJavaDocParseFailure()
{
  StringWriter classWriter = new StringWriter();
  PrintWriter classStream = new PrintWriter( classWriter );
  classStream.println("package test;                       ");
  classStream.println("                                    ");
  classStream.println("/**                                 ");
  classStream.println(" * This is a test comment           ");
  classStream.println(" */                                 ");
  classStream.println("public class TestClass {}           ");
  
  ASTParser javaParser = ASTParser.newParser(AST.JLS4);
  javaParser.setEnvironment(null, null, null, true);
  javaParser.setStatementsRecovery(true);
  
  Map<String,String> compilerOptions = JavaCore.getDefaultOptions();
  compilerOptions.put(CompilerOptions.OPTION_Compliance, CompilerOptions.VERSION_1_7);
  compilerOptions.put(CompilerOptions.OPTION_Source, CompilerOptions.VERSION_1_7);
  compilerOptions.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_1_7);
  javaParser.setCompilerOptions(compilerOptions);    
  javaParser.setSource( classWriter.toString().toCharArray() );
  
  javaParser.createAST(null).accept( new ASTVisitor(true) {
    @Override
    public boolean visit(Javadoc node)
    {
      System.out.println( "Found javadoc: " + node );
      return true;
    }

    @Override
    public boolean visit(TypeDeclaration node)
    {
      System.out.println( "Found Type " + node.getName().getFullyQualifiedName() + " -> javadoc: " + node.getJavadoc() );
      return super.visit(node);
    }
  });
}

Found Type TestClass -> javadoc: null