Bug 6009 - <fo:marker> broke in 0.20.3rc: Error:null
Summary: <fo:marker> broke in 0.20.3rc: Error:null
Status: CLOSED FIXED
Alias: None
Product: Fop - Now in Jira
Classification: Unclassified
Component: general (show other bugs)
Version: all
Hardware: All All
: P3 major
Target Milestone: ---
Assignee: fop-dev
URL:
Keywords:
: 6741 (view as bug list)
Depends on:
Blocks:
 
Reported: 2002-01-24 15:46 UTC by Jens Scheffler
Modified: 2012-04-01 06:49 UTC (History)
1 user (show)



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Description Jens Scheffler 2002-01-24 15:46:47 UTC
TITLE:
<fo:marker> broke in 0.20.3rc: Error:null
BODY:
Hi,
we have problems using <fo:marker> in our fo-documents. 
We use xml+xsl->fo to generate invoices out of our billing system in pdf-
format. Therefore we need to have <fo:marker> to create subtotals at the end of 
each page.

Problem #1:
In the new fop release 0.20.3rc our fo-documents are not working anymore, 
because we get an "ERROR: null" when we try to generate an invoice. In tour 
testing we tried to use the same format for the markers like in the provided 
examples, but in our installation, we get the same error with the 
example "glossary.fo" and "hide.fo".
Is there a possibility to debug the fop application more deeply?
Do we use the wrong .jar files? We copied all the current versions which were 
supplied in the tar-file into the $CLASSPATH directory. The marker was working 
with release 0.20.2RC.
The debug output is like this:
[DEBUG]: Input mode:
[DEBUG]: FO
[DEBUG]: fo input file: C:\Temp\FOP-02~1.TAR\FOP-
02~1.3RC\docs\examples\markers\glossary.fo
[DEBUG]: Output mode:
[DEBUG]: awt on screen
[DEBUG]: OPTIONS
[DEBUG]: no user configuration file is used [default]
[DEBUG]: debug mode on
[DEBUG]: dump configuration
[DEBUG]: quiet mode on
[DEBUG]: base directory: file:/C:/Temp/FOP-02~1.TAR/FOP-
02~1.3RC/docs/examples/markers/
[DEBUG]: using SAX parser org.apache.xerces.parsers.SAXParser
[INFO]: building formatting object tree
[DEBUG]: setting up fonts
[ERROR]: null
org.apache.fop.apps.FOPException
        at org.apache.fop.apps.Driver.render(Driver.java:486)
        at org.apache.fop.apps.AWTStarter.run(AWTStarter.java:116)
        at org.apache.fop.apps.Fop.main(Fop.java:19)

---------

java.lang.NullPointerException
        at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1094)
        at org.apache.fop.apps.Driver.render(Driver.java:481)
        at org.apache.fop.apps.AWTStarter.run(AWTStarter.java:116)
        at org.apache.fop.apps.Fop.main(Fop.java:19)

---------

java.lang.NullPointerException
        at org.apache.fop.fo.FObjMixed.addCharacters(FObjMixed.java:47)
        at org.apache.fop.fo.FOTreeBuilder.characters(FOTreeBuilder.java:166)
        at org.apache.xerces.parsers.SAXParser.characters(SAXParser.java:1579)
        at org.apache.xerces.validators.common.XMLValidator.processCharacters
(XMLValidator.java:866)
        at org.apache.xerces.readers.UTF8Reader.scanContent
(UTF8Reader.java:2377)
        at 
org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch
(XMLDocumentScanner.java:1094)
        at org.apache.xerces.framework.XMLDocumentScanner.parseSome
(XMLDocumentScanner.java:381)
        at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1081)
        at org.apache.fop.apps.Driver.render(Driver.java:481)
        at org.apache.fop.apps.AWTStarter.run(AWTStarter.java:116)
        at org.apache.fop.apps.Fop.main(Fop.java:19)


Problem #2:
We have a need to get a subtotal from the last page onto the top of every 
current page and a subtotal on the bottom of every page. Therefore we use a 
second <fo:marker>. Unfortunatly we get an error for every block which is 
containing more than one marker, like this:
(...)
  <fo:block>
    <fo:marker marker-class-name="marker1">last subtotal: $100</fo:marker>
    <fo:marker marker-class-name="marker2">current subtotal: $100</fo:marker>
    1x Potatoe washing machine................. $100
  </fo:block>
(...)
The Output is like this:
"fo:marker must be an initial child,and 'marker-class-name' must be unique for 
same parent"
We are pretty much sure, that we use the right syntax for the two markers, we 
tried to debug through the code and it SHOULD work. The mysterious part of our 
second marker-problem is, that we get an error but the content of the marker is 
shown on the resulting invoice.

Any help appreciated!
Thanks!

Jens Scheffler
Comment 1 J.Pietschmann 2002-04-08 21:09:26 UTC
The fo:marker is still broken in 0.20.3.
The problem is that the TextState ts in the parent FObjMixed object is not
initialised. The fix should be to copy a line from the Block constructor.
Comment 2 J.Pietschmann 2002-04-22 09:07:45 UTC
*** Bug 6741 has been marked as a duplicate of this bug. ***
Comment 3 Glenn Adams 2012-04-01 06:49:17 UTC
batch transition pre-FOP1.0 resolved+fixed bugs to closed+fixed