Hi All, I use Karaf as a runtime to host my Apache Camel routes. They are mostly plain blueprint .xmls that are installed and deployed with the blueprint handler. I make heavy use of xsl tranformations and have in the past used Xalan but am moving to Saxon for xslt/xpath 2.0.
On 4.2.1 I don't have any issues installing and using either Xalan or Saxon bundles, but on 4.2.2, once either are installed I can no longer install through blueprint. It looks to be the result of the change for "Set the secure processing feature on TransformerFactory instances" in XmlUtils in commit de4c413925379913ffb3bf96ead7edc2dba98d4b. That commit sets XMLConstants.ACCESS_EXTERNAL_DTD and neither Xalan nor Saxon support that property. From what I've read searching for that error I believe external DTD isn't in the purview of transformation but in the document parser. Note that it is after a restart of Karaf after installing Saxon that I get the exception when trying to install another blueprint bundle. I believe a transfomer is already created from the default com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImp. Has anyone else seen this? Thanks. -John 2018-12-31T16:17:31,853 | ERROR | fileinstall-/opt/sgscamel/karaf/apache-karaf-4.2.2/deploy | BlueprintURLHandler | 63 - org.apache.karaf.deployer.blueprint - 4.2.2 | Error opening blueprint xml url java.lang.IllegalArgumentException: Unknown configuration property http://javax.xml.XMLConstants/property/accessExternalDTD at net.sf.saxon.Configuration.setConfigurationProperty(Configuration.java:4644) ~[?:?] at net.sf.saxon.s9api.Processor.setConfigurationProperty(Processor.java:352) ~[?:?] at net.sf.saxon.jaxp.SaxonTransformerFactory.setAttribute(SaxonTransformerFactory.java:306) ~[?:?] at org.apache.karaf.util.XmlUtils.transformer(XmlUtils.java:154) ~[63:org.apache.karaf.deployer.blueprint:4.2.2] at org.apache.karaf.util.XmlUtils.transform(XmlUtils.java:96) ~[63:org.apache.karaf.deployer.blueprint:4.2.2] at org.apache.karaf.deployer.blueprint.BlueprintTransformer.analyze(BlueprintTransformer.java:129) ~[63:org.apache.karaf.deployer.blueprint:4.2.2] at org.apache.karaf.deployer.blueprint.BlueprintTransformer.transform(BlueprintTransformer.java:71) ~[63:org.apache.karaf.deployer.blueprint:4.2.2] at org.apache.karaf.deployer.blueprint.BlueprintURLHandler$Connection.getInputStream(BlueprintURLHandler.java:73) [63:org.apache.karaf.deployer.blueprint:4.2.2] at java.net.URL.openStream(URL.java:1045) [?:?] at org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:962) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:884) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:489) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:316) [10:org.apache.felix.fileinstall:3.6.4] 2018-12-31T16:17:31,881 | ERROR | fileinstall-/opt/sgscamel/karaf/apache-karaf-4.2.2/deploy | fileinstall | 10 - org.apache.felix.fileinstall - 3.6.4 | Failed to install artifact: /opt/sgscamel/karaf/apache-karaf-4.2.2/deploy/connectionfactory-amq1.xml java.io.IOException: Error opening blueprint xml url at org.apache.karaf.deployer.blueprint.BlueprintURLHandler$Connection.getInputStream(BlueprintURLHandler.java:78) ~[?:?] at java.net.URL.openStream(URL.java:1045) ~[?:?] at org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:962) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:884) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:489) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) [10:org.apache.felix.fileinstall:3.6.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:316) [10:org.apache.felix.fileinstall:3.6.4] Caused by: java.lang.IllegalArgumentException: Unknown configuration property http://javax.xml.XMLConstants/property/accessExternalDTD at net.sf.saxon.Configuration.setConfigurationProperty(Configuration.java:4644) ~[?:?] at net.sf.saxon.s9api.Processor.setConfigurationProperty(Processor.java:352) ~[?:?] at net.sf.saxon.jaxp.SaxonTransformerFactory.setAttribute(SaxonTransformerFactory.java:306) ~[?:?] at org.apache.karaf.util.XmlUtils.transformer(XmlUtils.java:154) ~[?:?] at org.apache.karaf.util.XmlUtils.transform(XmlUtils.java:96) ~[?:?] at org.apache.karaf.deployer.blueprint.BlueprintTransformer.analyze(BlueprintTransformer.java:129) ~[?:?] at org.apache.karaf.deployer.blueprint.BlueprintTransformer.transform(BlueprintTransformer.java:71) ~[?:?] at org.apache.karaf.deployer.blueprint.BlueprintURLHandler$Connection.getInputStream(BlueprintURLHandler.java:73) ~[?:?] ... 6 more
