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From "Chris Bowditch (Jira)" <j...@apache.org>
Subject [jira] [Commented] (FOP-2569) Exception in thread "main" java.lang.StackOverflowError at org.apache.fop.hyphenation.TernaryTree.insert(TernaryTree.java:244)
Date Fri, 12 Jun 2020 14:11:00 GMT

    [ https://issues.apache.org/jira/browse/FOP-2569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17134250#comment-17134250
] 

Chris Bowditch commented on FOP-2569:
-------------------------------------

Thanks for sharing the XML. Looking at the code I think its designed for a maximum number
of hyphenation patterns of around 65535. This is backed up by the comments at the top of the
class:

 

Using java's char type as pointer (yes, I know pointer
* it is a forbidden word in java) we can keep the size of the node
* to be just 8 bytes (3 pointers and the data char). This gives
* room for about 65000 nodes. In my tests the english patterns
* took 7694 nodes and the german patterns 10055 nodes,
* so I think we are safe.

 

I'll have a go at changing the char[] to int[] to see if that resolves the issue

> Exception in thread "main" java.lang.StackOverflowError at org.apache.fop.hyphenation.TernaryTree.insert(TernaryTree.java:244)
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: FOP-2569
>                 URL: https://issues.apache.org/jira/browse/FOP-2569
>             Project: FOP
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Mathieu Malaterre
>            Priority: Major
>             Fix For: 1.1
>
>         Attachments: hyph_de_DE.fop
>
>
> fop + offo is broken since release 2.0 (and 2.1). It used to be possible to build fop-hyph.jar
using fop 1.1. Please resurrect a working hyph building mechanism.
> Here is what it states:
> $ /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java -Xss512k -classpath
> /home/mathieu/debian/fop/fop-2.1/build/classes
> org.apache.fop.hyphenation.SerializeHyphPattern
> /home/mathieu/debian/fop/fop-2.1/hyph
> /home/mathieu/debian/fop/fop-2.1/build/classes/hyph
> Processing /home/mathieu/debian/fop/fop-2.1/hyph/sa.xml
> Exception in thread "main" java.lang.StackOverflowError
> at org.apache.fop.hyphenation.TernaryTree.insert(TernaryTree.java:244)
> at org.apache.fop.hyphenation.TernaryTree.insert(TernaryTree.java:244)
> at org.apache.fop.hyphenation.TernaryTree.insert(TernaryTree.java:244)
> at org.apache.fop.hyphenation.TernaryTree.insert(TernaryTree.java:244)
> [...]
> at org.apache.fop.hyphenation.TernaryTree.insert(TernaryTree.java:244)
> See thread:
> http://mail-archives.apache.org/mod_mbox/xmlgraphics-fop-users/201602.mbox/%3CCA%2B7wUszWN2PdZY_t_Kgn0E4eatL7CUQswOWj9XC%3Dg9GDdgsyXw%40mail.gmail.com%3E



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