The RTFHandler crashes with a Nullpointer exception while processing following
XSL-FO document. The same Code works for PDF very well.


Stacktrace:
----------------
java.lang.NullPointerException
	at org.apache.fop.render.rtf.RTFHandler.recurseFONode(RTFHandler.java:1588)
	at org.apache.fop.render.rtf.RTFHandler.recurseFONode(RTFHandler.java:1625)
	at org.apache.fop.render.rtf.RTFHandler.recurseFONode(RTFHandler.java:1625)
	at org.apache.fop.render.rtf.RTFHandler.recurseFONode(RTFHandler.java:1625)
	at org.apache.fop.render.rtf.RTFHandler.recurseFONode(RTFHandler.java:1625)
	at org.apache.fop.render.rtf.RTFHandler.recurseFONode(RTFHandler.java:1625)
	at org.apache.fop.render.rtf.RTFHandler.recurseFONode(RTFHandler.java:1583)
	at org.apache.fop.render.rtf.RTFHandler.endPageSequence(RTFHandler.java:233)
	at org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:147)
	at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:358)
	at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:193)

Code bit
-----------------------
....
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();           
            out = new FileOutputStream(pdf);
            out = new BufferedOutputStream(out);          
            Fop fop = fopFactory.newFop(MimeConstants.MIME_RTF, foUserAgent,
out);           
            TransformerFactory factory = TransformerFactory.newInstance();
            Transformer transformer = factory.newTransformer();
            Source src = new StreamSource(fo);
            Result res = new SAXResult(fop.getDefaultHandler());          
            transformer.transform(src, res);
...


XSL-FO
----------

<?xml version="1.0" encoding="UTF-8"?>
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format"
xmlns:fox="http://xml.apache.org/fop/extensions">
<fo:layout-master-set>
<fo:page-sequence-master master-name="chapter-master">
<fo:repeatable-page-master-alternatives>
<fo:conditional-page-master-reference master-reference="common-page"
odd-or-even="odd" page-position="first"/>
<fo:conditional-page-master-reference master-reference="common-page"
odd-or-even="even" page-position="first"/>
<fo:conditional-page-master-reference master-reference="common-page"
odd-or-even="odd" page-position="rest"/>
<fo:conditional-page-master-reference master-reference="common-page"
odd-or-even="even" page-position="rest"/>
</fo:repeatable-page-master-alternatives>
</fo:page-sequence-master>
<fo:simple-page-master page-width="21cm" page-height="29.7cm" margin-top="0cm"
margin-bottom="0cm" margin-left="0cm" margin-right="0cm" master-name="cover">
<fo:region-body margin-top="72pt"/>
<fo:region-before extent="15cm"/>
<fo:region-after extent="24pt"/>
<fo:region-end extent="10cm"/>
</fo:simple-page-master>
<fo:simple-page-master page-width="51pc" page-height="66pc" margin-top="3pc"
margin-bottom="3pc" margin-left="6pc" margin-right="6pc" master-name="common-page">
<fo:region-body margin-top="12pt" margin-bottom="36pt"/>
<fo:region-before extent="12pt"/>
<fo:region-after extent="24pt"/>
</fo:simple-page-master>
</fo:layout-master-set>
<fo:bookmark-tree>
<fo:bookmark internal-destination="N20006">
<fo:bookmark-title>Total Traffic per Message Type</fo:bookmark-title>
</fo:bookmark>
</fo:bookmark-tree>
<fo:page-sequence master-reference="cover">
<fo:static-content flow-name="xsl-region-before">
<fo:block margin-left="2cm" margin-top="1cm" text-align="left">
<fo:external-graphic content-width="70%"
src="file:///E:/workspace/XSL_FOP_Test/reports/topics/img/logo2.png"/>
</fo:block>
</fo:static-content>
<fo:static-content flow-name="xsl-region-after">
<fo:block line-height="normal" font-weight="bold" font-size="11pt"
margin-top="1cm">               
            © Copyright company</fo:block>
</fo:static-content>
<fo:static-content flow-name="xsl-region-end">
<fo:block text-align="left" margin-left="1cm">
<fo:external-graphic content-width="100%"
src="file:///E:/workspace/XSL_FOP_Test/reports/topics/img/background.png"/>
</fo:block>
</fo:static-content>
<fo:flow flow-name="xsl-region-body">
<fo:block font-family="Helvetica" text-align="left">
<fo:block line-height="140%" font-weight="bold" font-size="30pt"/>
<fo:block margin-bottom="1in" line-height="140%" font-weight="bold"
font-size="24pt"/>
</fo:block>
<fo:block padding="6pt" font-family="Helvetica" margin-top="10px">
<fo:block text-align="center" margin-right="10cm" margin-bottom="10px"
margin-top="10px" line-height="100%" font-size="16pt">
<fo:block>
<fo:external-graphic content-width="40%"
src="file:///E:/workspace/XSL_FOP_Test/reports/topics/img/logo.PNG"/>
</fo:block>
<fo:block font-size="18pt">SMS Inspector</fo:block>
<fo:block>Report</fo:block>
</fo:block>
</fo:block>
</fo:flow>
</fo:page-sequence>
<fo:page-sequence master-reference="cover">
<fo:flow flow-name="xsl-region-body">
<fo:block font-size="10pt" text-indent="0em" space-before="0.6em"
space-after="0.6em" text-align="center" color="purple"/>
</fo:flow>
</fo:page-sequence>
<fo:page-sequence initial-page-number="1" format="i" master-reference="common-page">
<fo:static-content flow-name="xsl-region-before">
<fo:block line-height="8pt" font-size="8pt">Total Traffic per Message
Type</fo:block>
</fo:static-content>
<fo:static-content flow-name="xsl-region-after">
<fo:block font-family="Helvetica" font-weight="bold" font-size="10pt"
text-align="center">
<fo:page-number/>
</fo:block>
</fo:static-content>
<fo:flow flow-name="xsl-region-body">
<fo:block id="page1-1" font-family="Helvetica" font-size="10pt" line-height="12pt">
<fo:block font-family="Helvetica" text-align="left">
<fo:block>
<fo:leader leader-length="2in" rule-thickness="3pt" leader-pattern="rule"
color="black"/>
</fo:block>
<fo:block line-height="140%" font-weight="bold" font-size="20pt">
              Contents </fo:block>
</fo:block>
</fo:block>
</fo:flow>
</fo:page-sequence>
<fo:page-sequence master-reference="chapter-master">
<fo:static-content flow-name="xsl-region-before">
<fo:block line-height="8pt" font-size="8pt">Total Traffic per Message
Type</fo:block>
</fo:static-content>
<fo:static-content flow-name="xsl-region-after">
<fo:block font-family="Helvetica" font-weight="bold" font-size="10pt"
text-align="center">
<fo:page-number/>
</fo:block>
</fo:static-content>
<fo:flow flow-name="xsl-region-body">
<fo:block break-before="page" font-family="Helvetica" font-size="10pt"
text-align="left">
<fo:block>
<fo:block break-before="page" margin-top="0pc" margin-bottom="1.4pc"
font-size="16pt" font-weight="bold" padding-top="1.4pc" id="N10011">
<fo:block border-right-width="0pt" border-left-width="0pt" line-height="100%"
border-top-width="3pt" border-top-color="black">
<fo:block id="N20006"/>Total Traffic per Message Type</fo:block>
</fo:block>
<fo:block start-indent="72pt" font-size="10pt">
<fo:block>
<fo:table table-layout="fixed" width="100%" space-before="12pt"
space-after="10pt" background-color="white" border-style="solid"
border-width="1pt" border-color="black">
<fo:table-header>
<fo:table-row>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
font-weight="bold" text-align="center" padding="2pt" background-color="silver"
start-indent="2pt" column-number="1">
<fo:block>Report 1</fo:block>
</fo:table-cell>
</fo:table-row>
</fo:table-header>
<fo:table-body>
<fo:table-row>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#faf4fa" start-indent="2pt" column-number="1">
<fo:block>
							Total Traffic over the report period.
						</fo:block>
</fo:table-cell>
</fo:table-row>
<fo:table-row>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#faf4fa" start-indent="2pt" column-number="1">
<fo:block>
<fo:block font-size="10pt" text-indent="0em" space-before="0.6em"
space-after="0.6em">
<fo:external-graphic
src="url(file:///E:\workspace\GenericJobScheduler\log\img\0hour_linechart.png)"
content-width="scale-to-fit" width="100%"/>
</fo:block>
</fo:block>
</fo:table-cell>
</fo:table-row>
<fo:table-row>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#faf4fa" start-indent="2pt" column-number="1">
<fo:block>
<fo:block font-size="10pt" text-indent="0em" space-before="0em" space-after="0.6em">
						    Some Text
							<fo:block space-before="12pt">
<fo:table table-layout="fixed" width="100%" space-before="10pt"
space-after="10pt" background-color="white" border-style="solid"
border-width="1pt" border-color="black">
<fo:table-column/>
<fo:table-column/>
<fo:table-column/>
<fo:table-column/>
<fo:table-column/>
<fo:table-column/>
<fo:table-body>
<fo:table-row>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
font-weight="bold" text-align="center" padding="2pt" background-color="silver"
start-indent="2pt" column-number="1">
<fo:block font-size="10pt">messageType</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
font-weight="bold" text-align="center" padding="2pt" background-color="silver"
start-indent="2pt" column-number="2">
<fo:block font-size="10pt">year</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
font-weight="bold" text-align="center" padding="2pt" background-color="silver"
start-indent="2pt" column-number="3">
<fo:block font-size="10pt">month</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
font-weight="bold" text-align="center" padding="2pt" background-color="silver"
start-indent="2pt" column-number="4">
<fo:block font-size="10pt">day</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
font-weight="bold" text-align="center" padding="2pt" background-color="silver"
start-indent="2pt" column-number="5">
<fo:block font-size="10pt">hour</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
font-weight="bold" text-align="center" padding="2pt" background-color="silver"
start-indent="2pt" column-number="6">
<fo:block font-size="10pt">sumTotal</fo:block>
</fo:table-cell>
</fo:table-row>
<fo:table-row>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#fafafa" start-indent="2pt" column-number="1">
<fo:block font-size="9pt">SRISM</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#fafafa" start-indent="2pt" column-number="2">
<fo:block font-size="9pt">2006</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#fafafa" start-indent="2pt" column-number="3">
<fo:block font-size="9pt">2</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#fafafa" start-indent="2pt" column-number="4">
<fo:block font-size="9pt">24</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#fafafa" start-indent="2pt" column-number="5">
<fo:block font-size="9pt">12</fo:block>
</fo:table-cell>
<fo:table-cell border-style="solid" border-width="1pt" border-color="black"
padding="2pt" background-color="#fafafa" start-indent="2pt" column-number="6">
<fo:block font-size="9pt">10698</fo:block>
</fo:table-cell>
</fo:table-row>
</fo:table-body>
</fo:table>
</fo:block>
</fo:block>
</fo:block>
</fo:table-cell>
</fo:table-row>
</fo:table-body>
</fo:table>
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>