https://issues.apache.org/bugzilla/show_bug.cgi?id=48162
Summary: PageBreakingAlgorithm endless loop
Product: Fop
Version: 0.95
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: major
Priority: P2
Component: general
AssignedTo: fop-dev@xmlgraphics.apache.org
ReportedBy: kempelen.a...@gmail.com
The createFootnotePages(KnuthPageNode lastNode) method can go to an endless
loop.
Check this part from line 818:
while (insertedFootnotesLength < totalFootnotesLength) {
final int tmpLength = ((Integer)
lengthList.get(footnoteListIndex)).intValue();
// try adding some more content
if ((tmpLength - insertedFootnotesLength) <= availableBPD) {
// add a whole footnote
availableBPD -= tmpLength - insertedFootnotesLength;
insertedFootnotesLength = tmpLength;
footnoteElementIndex = getFootnoteList(footnoteListIndex).size() - 1;
}
...
Most of the times it works OK, but if tmpLength=insertedFootnotesLength, the
while loop will never end. It can happen, I transformed a document where this
while cycle never stop.
I put this line into the while cycle:
if (tmpLength == insertedFootnotesLength) {
footnoteListIndex++;
}
Now it works fine, but I do not know if it gives a correct result in every
cases.
Akos
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