Xpages运行时错误：'java class java.lang.IllegalStateException：Access denied（java.lang.RuntimePermission getClassLoader）'

Question

I am trying to call 'new XWPFDocument(inStream);' in a java class in an XPages application. The XWPFDocument class is part of the Apache POI library. However when it gets to the call to this constructor at runtime, I get the following stack trace:

11/02/2014 20:57:02 HTTP JVM: java.lang.IllegalStateException: Access denied (java.lang.RuntimePermission getClassLoader) 11/02/2014 20:57:02 HTTP JVM: at org.apache.xmlbeans.XmlBeans.getContextTypeLoader(XmlBeans.java:336) 11/02/2014 20:57:02 HTTP JVM: at org.openxmlformats.schemas.wordprocessingml.x2006.main.DocumentDocument$Factory.parse(Unknown Source) 11/02/2014 20:57:02 HTTP JVM: at org.apache.poi.xwpf.usermodel.XWPFDocument.onDocumentRead(XWPFDocument.java:134) 11/02/2014 20:57:02 HTTP JVM: at org.apache.poi.POIXMLDocument.load(POIXMLDocument.java:159) ...

I have added all the necessary jar files to the 'Web Content/WEB INF/lib' folder under package explorer, and subsequently added them to the project's java build path. Am I missing something?

The code around the call is:

        OutputStream outStream = response.getOutputStream();
        InputStream inStream = null;
        EmbeddedObject embeddedObj = null;
        XWPFDocument document = null;

        if (attachments.size() > 0) {
            String attachmentName = attachments.get(0).toString();
            embeddedObj = downloadDocument.getAttachment(attachmentName);
            if (embeddedObj != null) {
                inStream = embeddedObj.getInputStream();
                document = new XWPFDocument(inStream);
                inStream.close();

                document.write(outStream);
            }
        }

Answer 1

Add to Domino server's jvm/lib/security/java.policy file

grant codeBase "xspnsf://server:0/<application>.nsf/WEB-INF/lib/*" {
    permission java.lang.RuntimePermission "getClassLoader";
}

or put the jar files into Domino server's trusted folder jvm/lib/ext .