Data Breaks instead flowing to new Page

hi Team,

          I am using "com.aspose.pdf.HtmlFragment" DOM approach.

Document doc = new Document();
Page page1 = doc.getPages().add();
HtmlFragment htmlfrag = new HtmlFragment(firstName + "<br/>" +address); //address -> very long html content
htmlfrag.getMargin().setBottom(10);
htmlfrag.getMargin().setTop(20);
page1.getParagraphs().add(htmlfrag);

I am getting error when i am saving the document.
Exception in thread "main" class com.aspose.pdf.internal.p234.z9: The rectangle size can not be larger page size
Parameter name: rectangle
com.aspose.pdf.z9.<init>(Unknown Source)
com.aspose.pdf.Page.m1(Unknown Source)
com.aspose.pdf.Page.m1(Unknown Source)
com.aspose.pdf.z125.m5(Unknown Source)
com.aspose.pdf.Page.m2(Unknown Source)
com.aspose.pdf.Page.m6(Unknown Source)
com.aspose.pdf.ADocument.m5(Unknown Source)
com.aspose.pdf.Document.m5(Unknown Source)
com.aspose.pdf.ADocument.saveInternal(Unknown Source)
com.aspose.pdf.Document.saveInternal(Unknown Source)
com.aspose.pdf.ADocument.save(Unknown Source)
com.aspose.pdf.Document.save(Unknown Source)
com.raj.aspose.pdfgeneration.dom.GeneratePDF4mHTMLDOM.main(GeneratePDF4mHTMLDOM.java:53)

Please help me out in addressing this issue. The data breaks at the end of Page 1 and does not flow to next new page.

Thanking You
Rajesh