Re: Publishing area tree XML fails

Hi Mark,

It might help narrow down on the issue if you tried an alternative JDK - I'd suggest Temurin jdk-11

It might also be a good time to update to the latest FOP version.

I've tried what you're attempting to do on Temurin 11 / FOP main branch and I had no issues.

Regards,
Dave
________________________________
From: Mark Giffin <[email protected]>
Sent: 26 June 2023 07:57
To: [email protected] <[email protected]>
Subject: Publishing area tree XML fails

I'm using FOP 2.4 on ubuntu. I create an area tree XML file on the
command line with this:

fop -s topic.fo -at area_tree.xml

This works fine. I plan to make some changes and read it in, then
publish to PDF.

I am trying to read it in and I don't know what to expect, or how to
publish out to PDF. The docs do not go into this, that I can find. I get
failure when I run the command below intended to produce a PDF called
aaa.pdf:

fop -atin area_tree.xml aaa.pdf
[warning] /usr/bin/fop: JVM flavor 'sun' not understood
[ERROR] FOP - Exception <org.apache.fop.apps.FOPException:
java.util.EmptyStackException
java.util.EmptyStackException>org.apache.fop.apps.FOPException:
java.util.EmptyStackException
java.util.EmptyStackException
         at
org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:296)
         at
org.apache.fop.cli.AreaTreeInputHandler.renderTo(AreaTreeInputHandler.java:75)
         at org.apache.fop.cli.Main.startFOP(Main.java:183)
         at org.apache.fop.cli.Main.main(Main.java:214)
Caused by: java.util.EmptyStackException
         at java.base/java.util.Stack.peek(Stack.java:102)
         at
org.apache.fop.area.AreaTreeParser$Handler.handleExternallyGeneratedObject(AreaTreeParser.java:1089)
etc.

Any ideas?

Thanks,
Mark



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