Maven Dependency Problem integrating Apache FOP into JIRA plugin

[Markus Bode]

Hi,

I have a similar problem like (https://answers.atlassian.com/questions/104121/i-m-blocked-help-cannot-be-cast-to-javax-xml-parsers-saxparserfactory?page=1#122989) but i'm really stuck finding a solution. I try to use apache FOP in my jira Plugin.

This is the interesting part of my pom:

<dependency>
			<groupId>org.apache.xmlgraphics</groupId>
			<artifactId>fop</artifactId>
			<version>1.0</version>
			<exclusions>
			<exclusion>
			  <groupId>xalan</groupId>
		      <artifactId>xalan</artifactId>
			</exclusion>
			</exclusions>
	</dependency>
		
	<dependency>
        	<groupId>javax.servlet</groupId>
        	<artifactId>servlet-api</artifactId>
        	<version>2.3</version>
        	<scope>provided</scope>
    </dependency>

I have excluded Xalan since it is shipped with JIRA. This is the dependency tree of fop:

[INFO] +- org.apache.xmlgraphics:fop:jar:1.0:compile
[INFO] |  +- org.apache.xmlgraphics:xmlgraphics-commons:jar:1.4:compile
[INFO] |  +- org.apache.xmlgraphics:batik-svg-dom:jar:1.7:compile
[INFO] |  |  +- org.apache.xmlgraphics:batik-anim:jar:1.7:compile
[INFO] |  |  +- org.apache.xmlgraphics:batik-css:jar:1.7:compile
[INFO] |  |  +- org.apache.xmlgraphics:batik-dom:jar:1.7:compile
[INFO] |  |  +- org.apache.xmlgraphics:batik-parser:jar:1.7:compile
[INFO] |  |  +- org.apache.xmlgraphics:batik-util:jar:1.7:compile
[INFO] |  |  +- xml-apis:xml-apis:jar:1.3.04:compile
[INFO] |  |  \- xml-apis:xml-apis-ext:jar:1.3.04:compile
[INFO] |  +- org.apache.xmlgraphics:batik-bridge:jar:1.7:compile
[INFO] |  |  +- org.apache.xmlgraphics:batik-script:jar:1.7:compile
[INFO] |  |  \- org.apache.xmlgraphics:batik-xml:jar:1.7:compile
[INFO] |  +- org.apache.xmlgraphics:batik-awt-util:jar:1.7:compile
[INFO] |  +- org.apache.xmlgraphics:batik-gvt:jar:1.7:compile
[INFO] |  +- org.apache.xmlgraphics:batik-transcoder:jar:1.7:compile
[INFO] |  |  \- org.apache.xmlgraphics:batik-svggen:jar:1.7:compile
[INFO] |  +- org.apache.xmlgraphics:batik-extension:jar:1.7:compile
[INFO] |  +- org.apache.xmlgraphics:batik-ext:jar:1.7:compile
[INFO] |  +- commons-logging:commons-logging:jar:1.0.4:compile
[INFO] |  +- commons-io:commons-io:jar:1.3.1:compile
[INFO] |  +- org.apache.avalon.framework:avalon-framework-api:jar:4.3.1:compile
[INFO] |  \- org.apache.avalon.framework:avalon-framework-impl:jar:4.3.1:compile
[INFO] \- javax.servlet:servlet-api:jar:2.3:provided

I got this ClassCastException on TransformerFactory tFactory = TransformerFactory.newInstance();:

[INFO] [talledLocalContainer] JAXP: find factoryId =javax.xml.transform.TransformerFactory
[INFO] [talledLocalContainer] JAXP: found system property, value=org.apache.xalan.processor.TransformerFactoryImpl
[INFO] [talledLocalContainer] JAXP: created new instance of class org.apache.xalan.processor.TransformerFactoryImpl using ClassLoader: com.atlassian.plugin.osgi.util.BundleClassLoaderAccessor$BundleClassLoader@1a9e6fe
[INFO] [talledLocalContainer] java.lang.ClassCastException: org.apache.xalan.processor.TransformerFactoryImpl cannot be cast to javax.xml.transform.TransformerFactory
[INFO] [talledLocalContainer]   at javax.xml.transform.TransformerFactory.newInstance(Unknown Source)
[INFO] [talledLocalContainer]   at com.gehis.jira.plugins.PDFHandler.createPDFFile(PDFHandler.java:72)

When i exclude xml-apis it seams that my plugin has no access to the xml-apis-1.3.04.jar, which is shipped with JIRA. After excluding xml-apis in my pom the following error occurs:

java.lang.NoClassDefFoundError: org/w3c/dom/DOMImplementation
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
	at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.findClass(ModuleImpl.java:1829)

Maybe there is also a magic hint for me? Thanks for any help!

Regards,

Markus

[Philipp Seßner]

I have found this blog post, which describes which FOP-Version to use and which exclusions to make:

https://www.clearvision-cm.com/blog/create-pdf-reports-in-jira/

It is working that way, but you can only use FOP Version 0.94. I have not found a solution to use a newer Version (maybe 2.0?).

[Andrey Luiz]

No solution yet?

[Joachim Seibert]

No one here, how can help? We got the same error and struggle with it. Seems, that fop uses an old xalan version that uses old xml-apis...

[Florian Bauer]

Hi did you find the magic hint? I have the same problem with a similar ClassCast Exception:

java.lang.ClassCastException: com.icl.saxon.TransformerFactoryImpl cannot be cast to javax.xml.transform.TransformerFactory

xslt it self works grate without any change in the pom. But if I try to add the org.apache.xmlgraphics stuff it crashes.

thanks,
Florian