Github user mcgilman commented on the issue:
https://github.com/apache/nifi/pull/2134
Thanks for the PR @alopresto! I've run into a small issue with one of my
tests. When I upload a template into my NiFi instance subsequent restarts fail
with the following exception:
```
org.apache.nifi.controller.serialization.FlowSynchronizationException:
java.lang.RuntimeException: Could not parse XML as a valid template
at
org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:436)
at
org.apache.nifi.controller.FlowController.synchronize(FlowController.java:1591)
at
org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.load(StandardXMLFlowConfigurationDAO.java:84)
at
org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:723)
at
org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:534)
at
org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextInitialized(ApplicationStartupContextListener.java:72)
at
org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:876)
at
org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:532)
at
org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:839)
at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:344)
at
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1480)
at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1442)
at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:799)
at
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:261)
at
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:540)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:113)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:105)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at
org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:290)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
at org.eclipse.jetty.server.Server.start(Server.java:452)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:105)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.Server.doStart(Server.java:419)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:707)
at org.apache.nifi.NiFi.<init>(NiFi.java:160)
at org.apache.nifi.NiFi.main(NiFi.java:268)
Caused by: java.lang.RuntimeException: Could not parse XML as a valid
template
at
org.apache.nifi.controller.TemplateUtils.parseDto(TemplateUtils.java:51)
at
org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1384)
at
org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:322)
... 33 common frames omitted
Caused by: java.lang.UnsupportedOperationException: Cannot create
XMLStreamReader or XMLEventReader from a javax.xml.transform.dom.DOMSource
at
com.sun.xml.internal.stream.XMLInputFactoryImpl.jaxpSourcetoXMLInputSource(XMLInputFactoryImpl.java:302)
at
com.sun.xml.internal.stream.XMLInputFactoryImpl.createXMLStreamReader(XMLInputFactoryImpl.java:143)
at
org.apache.nifi.security.xml.XmlUtils.createSafeReader(XmlUtils.java:43)
at
org.apache.nifi.persistence.TemplateDeserializer.deserialize(TemplateDeserializer.java:41)
at
org.apache.nifi.controller.TemplateUtils.parseDto(TemplateUtils.java:49)
... 35 common frames omitted
```
---
