[FOP-2027] When a marker contains list-block FOP crashes with NPE

• Type: Bug
• Status: Resolved
• Resolution: Fixed
• Affects Version/s: 2.5
• Component/s: layout/unqualified
• Environment: Operating System: Windows Vista; Platform: PC
• External issue ID: 52763
• Assignee: fop-dev
• Reporter: Ilia Masliev
• Created: 24/Feb/12 21:12
• Updated: 11/Apr/12 19:01
• Resolved: 11/Apr/12 21:31

Description

The BlockLayoutManager throws an NPE in the line

FontTriplet[] fontkeys = getBlockFO().getCommonFont().getFontState(fi);
in the initialize() method when the marker contains fo:block/fo:list-block:

<fo:flow flow-name="xsl-region-body">
<fo:block><fo:marker
marker-class-name="message"><fo:block>
WARNING: Page sequence contains: <fo:page-number-citation
ref-id="end-seq1"/> pages.
</fo:block>
<fo:block>
<fo:list-block><fo:list-item><fo:list-item-label><fo:block font-weight="bold" color="black">NOTE:</fo:block>
</fo:list-item-label>
<fo:list-item-body start-indent="0.5in"><fo:block text-align="left" color="black">This manual supersedes TM PUBNAME-00 dated 15 December 2004. Zero in the "Change No." column indicates an original page or work package.</fo:block>
</fo:list-item-body>
</fo:list-item>
</fo:list-block>
</fo:block>

</fo:marker>
</fo:block>

The reason is that the layout manager tries to set itself up using the properties of the block. However the block is not bound to the property list, because the inMarker() function returns true for such a block:

FObj.java

public void processNode(String elementName, Locator locator,
Attributes attlist, PropertyList pList)
throws FOPException {
setLocator(locator);
pList.addAttributesToList(attlist);
if (!inMarker()

"marker".equals(elementName)) { pList.setWritingMode(); bind(pList); }

Thus the block contains all empty fields and attempt to retrieve them causes an NPE.

Don't know if it has been resolved in FOP 1.1