HTML to PDF / DOCX / RTF Java converter library › Forums › PD4ML v3 Archived Forums (Read Only) › Troubleshooting › NullPointerException sometimes during render › Re: Re: NullPointerException sometimes during render
The exception is thrown in the following code (in StringTokenizer constructor)
[language=java:24yvxgeh]for (int i = 1; (headerName = conn.getHeaderFieldKey(i)) != null; i++) {
if (headerName.equalsIgnoreCase(SET_COOKIE)) {
Map cookie = new HashMap();
StringTokenizer st = new StringTokenizer(conn.getHeaderField(i), COOKIE_VALUE_DELIMITER);
…[/language:24yvxgeh]
Where conn is URLConnection.
It seems, conn.getHeaderField(i) returns null, which should not be possible according to the method specification.
We added an extra check for the null value to the development build. The fix will be available with the new beta release.