https://issues.apache.org/bugzilla/show_bug.cgi?id=51713
Bug #: 51713
Summary: Bad Connector protocol causes NullPointerException
when using Executor
Product: Tomcat 7
Version: 7.0.20
Platform: PC
Status: NEW
Severity: minor
Priority: P2
Component: Catalina
AssignedTo: dev@tomcat.apache.org
ReportedBy: ch...@christopherschultz.net
Classification: Unclassified
Under the following configuration, an NPE is thrown because _setExecutor()
calls con.getProtocolHandler().getClass() when the protocol handler is null.
It would be nice to report a bad configuration instead of suffering an NPE.
server.xml:
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
maxThreads="150" minSpareThreads="4"/>
<Connector port="12345"
redirectPort="443" protocol="HTTP"
secure="true" scheme="https" proxyPort="80"
URIEncoding="UTF-8" executor="tomcatThreadPool" />
catalina.out:
Aug 23, 2011 5:18:30 PM org.apache.catalina.connector.Connector <init>
SEVERE: Protocol handler instantiation failed
Aug 23, 2011 5:18:30 PM org.apache.tomcat.util.digester.Digester startElement
SEVERE: Begin event threw exception
java.lang.NullPointerException
at
org.apache.catalina.startup.ConnectorCreateRule._setExecutor(ConnectorCreateRule.java:69)
at
org.apache.catalina.startup.ConnectorCreateRule.begin(ConnectorCreateRule.java:63)
at
org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:501)
at
com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:179)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2755)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537)
at org.apache.catalina.startup.Catalina.load(Catalina.java:555)
at org.apache.catalina.startup.Catalina.load(Catalina.java:596)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:281)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:449)
Aug 23, 2011 5:18:30 PM org.apache.catalina.startup.Catalina load
WARNING: Catalina.start using conf/server.xml: Error at (104, 66) : null
Aug 23, 2011 5:18:30 PM org.apache.catalina.connector.Connector <init>
SEVERE: Protocol handler instantiation failed
Aug 23, 2011 5:18:30 PM org.apache.tomcat.util.digester.Digester startElement
SEVERE: Begin event threw exception
java.lang.NullPointerException
at
org.apache.catalina.startup.ConnectorCreateRule._setExecutor(ConnectorCreateRule.java:69)
at
org.apache.catalina.startup.ConnectorCreateRule.begin(ConnectorCreateRule.java:63)
at
org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:501)
at
com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:179)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2755)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537)
at org.apache.catalina.startup.Catalina.load(Catalina.java:555)
at org.apache.catalina.startup.Catalina.start(Catalina.java:609)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450)
Aug 23, 2011 5:18:31 PM org.apache.catalina.startup.Catalina load
WARNING: Catalina.start using conf/server.xml: Error at (104, 66) : null
Aug 23, 2011 5:18:31 PM org.apache.catalina.startup.Catalina start
SEVERE: Cannot start server. Server instance is not configured.
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