[CAMEL-9856] RestSwaggerProcessor fails with "Provider org.apache.xalan.processor.TransformerFactoryImpl not found" - ASF JIRA

Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Cannot Reproduce
Affects Version/s: 2.16.3
Fix Version/s: 2.18.0
Component/s: camel-core, karaf
Labels:
None
Environment:

Karaf 4.0.3, Java 8

Estimated Complexity:
Unknown

Description

When I try to query the Swagger API output for my REST routes, which are defined in a Blueprint context with the XML DSL, any request to a path that I think should return API information yields an empty response body (status 200) on the client and this error on the server. The error is raised by RestSwaggerSupport::getRestDefinitions(String) (line 147).

2016-04-11 16:45:29,136 | WARN  | qtp215489304-167 | RestSwaggerProcessor             | 78 - org.apache.camel.camel-swagger-java - 2.16.3 |   | Error rendering Swagger API due RuntimeException thrown in RequiredModelMBean while trying to invoke operation dumpRestsAsXml
javax.management.MBeanException: RuntimeException thrown in RequiredModelMBean while trying to invoke operation dumpRestsAsXml
	at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1285)[:1.8.0_77]
	at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:1085)[:1.8.0_77]
	at org.apache.camel.management.MixinRequiredModelMBean.invoke(MixinRequiredModelMBean.java:70)[71:org.apache.camel.camel-core:2.16.3]
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)[:1.8.0_77]
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)[:1.8.0_77]
	at org.apache.camel.swagger.RestSwaggerSupport.getRestDefinitions(RestSwaggerSupport.java:147)[78:org.apache.camel.camel-swagger-java:2.16.3]
	at org.apache.camel.swagger.RestSwaggerSupport.renderResourceListing(RestSwaggerSupport.java:198)[78:org.apache.camel.camel-swagger-java:2.16.3]
	at org.apache.camel.swagger.RestSwaggerProcessor.process(RestSwaggerProcessor.java:95)[78:org.apache.camel.camel-swagger-java:2.16.3]
	at org.apache.camel.component.rest.RestApiProducer.process(RestApiProducer.java:36)[71:org.apache.camel.camel-core:2.16.3]
	at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)[71:org.apache.camel.camel-core:2.16.3]
	at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)[71:org.apache.camel.camel-core:2.16.3]
	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)[71:org.apache.camel.camel-core:2.16.3]
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:460)[71:org.apache.camel.camel-core:2.16.3]
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)[71:org.apache.camel.camel-core:2.16.3]
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)[71:org.apache.camel.camel-core:2.16.3]
	at org.apache.camel.component.jetty.CamelContinuationServlet.service(CamelContinuationServlet.java:191)[74:org.apache.camel.camel-jetty-common:2.16.3]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)[63:javax.servlet-api:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)[122:org.eclipse.jetty.servlet:9.2.10.v20150310]
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)[122:org.eclipse.jetty.servlet:9.2.10.v20150310]
	at org.eclipse.jetty.servlets.MultiPartFilter.doFilter(MultiPartFilter.java:146)[123:org.eclipse.jetty.servlets:9.2.10.v20150310]
	at org.apache.camel.component.jetty.CamelFilterWrapper.doFilter(CamelFilterWrapper.java:43)[74:org.apache.camel.camel-jetty-common:2.16.3]
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)[122:org.eclipse.jetty.servlet:9.2.10.v20150310]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)[122:org.eclipse.jetty.servlet:9.2.10.v20150310]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)[121:org.eclipse.jetty.server:9.2.10.v20150310]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)[122:org.eclipse.jetty.servlet:9.2.10.v20150310]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)[121:org.eclipse.jetty.server:9.2.10.v20150310]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)[121:org.eclipse.jetty.server:9.2.10.v20150310]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)[121:org.eclipse.jetty.server:9.2.10.v20150310]
	at org.eclipse.jetty.server.Server.handle(Server.java:497)[121:org.eclipse.jetty.server:9.2.10.v20150310]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)[121:org.eclipse.jetty.server:9.2.10.v20150310]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)[121:org.eclipse.jetty.server:9.2.10.v20150310]
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)[113:org.eclipse.jetty.io:9.2.10.v20150310]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)[124:org.eclipse.jetty.util:9.2.10.v20150310]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)[124:org.eclipse.jetty.util:9.2.10.v20150310]
	at java.lang.Thread.run(Thread.java:745)[:1.8.0_77]
Caused by: org.apache.camel.TypeConversionException: Error during type conversion from type: org.apache.xerces.dom.DocumentImpl to the required type: java.lang.String with value [#document: null] due javax.xml.transform.TransformerFactoryConfigurationError: Provider org.apache.xalan.processor.TransformerFactoryImpl not found
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.createTypeConversionException(BaseTypeConverterRegistry.java:610)
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:177)
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:156)
	at org.apache.camel.core.osgi.OsgiTypeConverter.mandatoryConvertTo(OsgiTypeConverter.java:112)
	at org.apache.camel.management.mbean.ManagedCamelContext.dumpRestsAsXml(ManagedCamelContext.java:388)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_77]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[:1.8.0_77]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_77]
	at java.lang.reflect.Method.invoke(Method.java:498)[:1.8.0_77]
	at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)[:1.8.0_77]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_77]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[:1.8.0_77]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_77]
	at java.lang.reflect.Method.invoke(Method.java:498)[:1.8.0_77]
	at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)[:1.8.0_77]
	at javax.management.modelmbean.RequiredModelMBean$4.run(RequiredModelMBean.java:1252)
	at java.security.AccessController.doPrivileged(Native Method)[:1.8.0_77]
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)[:1.8.0_77]
	at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1246)[:1.8.0_77]
	... 34 more
Caused by: org.apache.camel.RuntimeCamelException: javax.xml.transform.TransformerFactoryConfigurationError: Provider org.apache.xalan.processor.TransformerFactoryImpl not found
	at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1652)
	at org.apache.camel.util.ObjectHelper.invokeMethod(ObjectHelper.java:1247)
	at org.apache.camel.impl.converter.InstanceMethodTypeConverter.convertTo(InstanceMethodTypeConverter.java:78)
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.doConvertTo(BaseTypeConverterRegistry.java:293)
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:168)
	... 51 more
Caused by: javax.xml.transform.TransformerFactoryConfigurationError: Provider org.apache.xalan.processor.TransformerFactoryImpl not found
	at javax.xml.transform.TransformerFactory.newInstance(TransformerFactory.java:121)[:2.5.0]
	at org.apache.camel.converter.jaxp.XmlConverter.createTransformerFactory(XmlConverter.java:1158)
	at org.apache.camel.converter.jaxp.XmlConverter.getTransformerFactory(XmlConverter.java:1051)
	at org.apache.camel.converter.jaxp.XmlConverter.createTransformer(XmlConverter.java:1153)
	at org.apache.camel.converter.jaxp.XmlConverter.toResult(XmlConverter.java:127)
	at org.apache.camel.converter.jaxp.XmlConverter.toResult(XmlConverter.java:116)
	at org.apache.camel.converter.jaxp.XmlConverter.toString(XmlConverter.java:238)
	at org.apache.camel.converter.jaxp.XmlConverter.toString(XmlConverter.java:282)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_77]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[:1.8.0_77]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_77]
	at java.lang.reflect.Method.invoke(Method.java:498)[:1.8.0_77]
	at org.apache.camel.util.ObjectHelper.invokeMethod(ObjectHelper.java:1243)
	... 54 more

RestSwaggerProcessor fails with "Provider org.apache.xalan.processor.TransformerFactoryImpl not found"

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