Re: Tomcat 8 does not start with java 8 on YOSEMITE
Hi Ameer thank you again for the link to the JDK - But I had it already installed on my yosemite. This JDK 8.25 has also the spoken peculiarity. I switched to Linux - there there seem to be less peculiarities as on osx. :) Kind regards / Meilleures salutations / Freundliche Grüsse Fabio Ricci semweb Semantic Web Technologies · Records Management Software systems · ICT coaching · ICT Projects leading www.semweb.ch Weinmanngasse 26 CH-8700 Küsnacht ZH (Switzerland) Tel. +41 (076) 5281961 +39 (389) 0681334 Skype: semweb-llc Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipients, are confidential and maybe privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email, and delete this message and any attachments from your system. Thank you. From: Ameer Mawia ameer.ma...@gmail.com Reply: Tomcat Users List users@tomcat.apache.org Date: 24 November 2014 at 00:44:45 To: Tomcat Users List users@tomcat.apache.org Subject: Re: Tomcat 8 does not start with java 8 on YOSEMITE Hi Fabio, There seems to be an issue with update 40 Early Access release of jre/jdk8(1.8.0_40). Compared with update 20 of jre/jdk8 release, you will see following lines of code has been added to getPlatfromMBeanServer: for (final PlatformManagedObject o : ExtendedPlatformComponent.getMXBeans()) { if (!platformMBeanServer.isRegistered(o.getObjectName())) { addMXBean(platformMBeanServer, o); } But if you look into the accompanied rt.jar of the jre, this newly introduced class(ExtendedPlatformComponent) can NO-WHERE be found. This issue, seems to be there across all the JAVA_VERSION=1.8.0_40 EA release, irrespective of platform. Your remedy is to move back to a stable release. Latest stable release seems to be Java SE 8u25. Regards, Ameer Mawia On Sun, Nov 23, 2014 at 4:09 AM, Fabio Ricci fabio.ri...@semweb.ch wrote: Dear tomcat community Maybe someone did have this before (and possibly solved it) On a mac book pro/JOSEMITE I installed Java 8 1.8.0_40-ea with JDK. My $JAVA_HOME is /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home Then I downloaded a tomcat 8 core from http://tomcat.apache.org/download-80.cgi When I start this tomcat 8 I get the following Java exceptio - see below. With this Java 8 also my older tomcat 7 throws the same exception. The official oracle java test page (https://www.java.com/en/download/installed.jsp) says, I have already java uptodate. The exception: It seems that sun/management/ExtendedPlatformComponent be not part of tomcat 8 nor java 8 ... Does anyone have some hints for me? I cannot figure our what is wrong ... Thank you very much in advance! Kind regards Fabio PS: The exception on start (/bin/startup.sh): 22-Nov-2014 18:43:02.218 SEVERE [main] org.apache.tomcat.util.digester.Digester.startElement Begin event threw error java.lang.NoClassDefFoundError: sun/management/ExtendedPlatformComponent at java.lang.management.ManagementFactory.getPlatformMBeanServer(ManagementFactory.java:494) at org.apache.tomcat.util.modeler.Registry.getMBeanServer(Registry.java:443) at org.apache.catalina.mbeans.MBeanUtils.createServer(MBeanUtils.java:580) at org.apache.catalina.mbeans.MBeanUtils.clinit(MBeanUtils.java:77) at org.apache.catalina.mbeans.GlobalResourcesLifecycleListener.clinit(GlobalResourcesLifecycleListener.java:66) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at java.lang.Class.newInstance(Class.java:442) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:117) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1184) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182) 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:2786) at
Re: Tomcat 8 does not start with java 8 on YOSEMITE
Il 24/11/14 10:04, Fabio Ricci ha scritto: Hi Ameer thank you again for the link to the JDK - But I had it already installed on my yosemite. This JDK 8.25 has also the spoken peculiarity. I am using Tomcat 8.0.15 with jdk1.8.0_25 on Yosemite and it works fine (only some troubles setting up the startup script). I switched to Linux - there there seem to be less peculiarities as on osx. completely agree! Edoardo :) Kind regards / Meilleures salutations / Freundliche Grüsse Fabio Ricci semweb Semantic Web Technologies · Records Management Software systems · ICT coaching · ICT Projects leading www.semweb.ch Weinmanngasse 26 CH-8700 Küsnacht ZH (Switzerland) Tel. +41 (076) 5281961 +39 (389) 0681334 Skype: semweb-llc Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipients, are confidential and maybe privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email, and delete this message and any attachments from your system. Thank you. From: Ameer Mawia ameer.ma...@gmail.com Reply: Tomcat Users List users@tomcat.apache.org Date: 24 November 2014 at 00:44:45 To: Tomcat Users List users@tomcat.apache.org Subject: Re: Tomcat 8 does not start with java 8 on YOSEMITE Hi Fabio, There seems to be an issue with update 40 Early Access release of jre/jdk8(1.8.0_40). Compared with update 20 of jre/jdk8 release, you will see following lines of code has been added to getPlatfromMBeanServer: for (final PlatformManagedObject o : ExtendedPlatformComponent.getMXBeans()) { if (!platformMBeanServer.isRegistered(o.getObjectName())) { addMXBean(platformMBeanServer, o); } But if you look into the accompanied rt.jar of the jre, this newly introduced class(ExtendedPlatformComponent) can NO-WHERE be found. This issue, seems to be there across all the JAVA_VERSION=1.8.0_40 EA release, irrespective of platform. Your remedy is to move back to a stable release. Latest stable release seems to be Java SE 8u25. Regards, Ameer Mawia On Sun, Nov 23, 2014 at 4:09 AM, Fabio Ricci fabio.ri...@semweb.ch wrote: Dear tomcat community Maybe someone did have this before (and possibly solved it) On a mac book pro/JOSEMITE I installed Java 8 1.8.0_40-ea with JDK. My $JAVA_HOME is /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home Then I downloaded a tomcat 8 core from http://tomcat.apache.org/download-80.cgi When I start this tomcat 8 I get the following Java exceptio - see below. With this Java 8 also my older tomcat 7 throws the same exception. The official oracle java test page (https://www.java.com/en/download/installed.jsp) says, I have already java uptodate. The exception: It seems that sun/management/ExtendedPlatformComponent be not part of tomcat 8 nor java 8 ... Does anyone have some hints for me? I cannot figure our what is wrong ... Thank you very much in advance! Kind regards Fabio PS: The exception on start (/bin/startup.sh): 22-Nov-2014 18:43:02.218 SEVERE [main] org.apache.tomcat.util.digester.Digester.startElement Begin event threw error java.lang.NoClassDefFoundError: sun/management/ExtendedPlatformComponent at java.lang.management.ManagementFactory.getPlatformMBeanServer(ManagementFactory.java:494) at org.apache.tomcat.util.modeler.Registry.getMBeanServer(Registry.java:443) at org.apache.catalina.mbeans.MBeanUtils.createServer(MBeanUtils.java:580) at org.apache.catalina.mbeans.MBeanUtils.clinit(MBeanUtils.java:77) at org.apache.catalina.mbeans.GlobalResourcesLifecycleListener.clinit(GlobalResourcesLifecycleListener.java:66) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at java.lang.Class.newInstance(Class.java:442) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:117) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1184) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182) at
Re: Tomcat 8 does not start with java 8 on YOSEMITE
Find my comment inline: On Mon, Nov 24, 2014 at 3:25 PM, Edoardo Panfili edoa...@aspix.it wrote: Il 24/11/14 10:04, Fabio Ricci ha scritto: Hi Ameer thank you again for the link to the JDK - But I had it already installed on my yosemite. This JDK 8.25 has also the spoken peculiarity. I am using Tomcat 8.0.15 with jdk1.8.0_25 on Yosemite and it works fine (only some troubles setting up the startup script). As I said, the issue lies ONLY with jdk/jre *1.8.0_40 EA* release. Try understand, the difference between 1.8.0_40 and release like 1.8.0_25. Both are java8 but different update release. 1.8.0_40 is an EARLY Access release and not officially released yet. You can expect things like this with an EA release. That why I said, go with a stable release, latest one available at oracle is 1.8.0_25 and that should work fine. I switched to Linux - there there seem to be less peculiarities as on osx. completely agree! I have verified 1.8.0_40 on window, it has issue to. I didn't got the chance to verify with Linux version of this release, but I guess, issue lies with all the platform of this release. Edoardo :) Kind regards / Meilleures salutations / Freundliche Grüsse Fabio Ricci semweb Semantic Web Technologies · Records Management Software systems · ICT coaching · ICT Projects leading www.semweb.ch Weinmanngasse 26 CH-8700 Küsnacht ZH (Switzerland) Tel. +41 (076) 5281961 +39 (389) 0681334 Skype: semweb-llc Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipients, are confidential and maybe privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email, and delete this message and any attachments from your system. Thank you. From: Ameer Mawia ameer.ma...@gmail.com Reply: Tomcat Users List users@tomcat.apache.org Date: 24 November 2014 at 00:44:45 To: Tomcat Users List users@tomcat.apache.org Subject: Re: Tomcat 8 does not start with java 8 on YOSEMITE Hi Fabio, There seems to be an issue with update 40 Early Access release of jre/jdk8(1.8.0_40). Compared with update 20 of jre/jdk8 release, you will see following lines of code has been added to getPlatfromMBeanServer: for (final PlatformManagedObject o : ExtendedPlatformComponent.getMXBeans()) { if (!platformMBeanServer.isRegistered(o.getObjectName())) { addMXBean(platformMBeanServer, o); } But if you look into the accompanied rt.jar of the jre, this newly introduced class(ExtendedPlatformComponent) can NO-WHERE be found. This issue, seems to be there across all the JAVA_VERSION=1.8.0_40 EA release, irrespective of platform. Your remedy is to move back to a stable release. Latest stable release seems to be Java SE 8u25. Regards, Ameer Mawia On Sun, Nov 23, 2014 at 4:09 AM, Fabio Ricci fabio.ri...@semweb.ch wrote: Dear tomcat community Maybe someone did have this before (and possibly solved it) On a mac book pro/JOSEMITE I installed Java 8 1.8.0_40-ea with JDK. My $JAVA_HOME is /Library/Java/JavaVirtualMachines/jdk1.8.0_ 40.jdk/Contents/Home Then I downloaded a tomcat 8 core from http://tomcat.apache.org/ download-80.cgi When I start this tomcat 8 I get the following Java exceptio - see below. With this Java 8 also my older tomcat 7 throws the same exception. The official oracle java test page (https://www.java.com/en/ download/installed.jsp) says, I have already java uptodate. The exception: It seems that sun/management/ExtendedPlatformComponent be not part of tomcat 8 nor java 8 ... Does anyone have some hints for me? I cannot figure our what is wrong ... Thank you very much in advance! Kind regards Fabio PS: The exception on start (/bin/startup.sh): 22-Nov-2014 18:43:02.218 SEVERE [main] org.apache.tomcat.util.digester.Digester.startElement Begin event threw error java.lang.NoClassDefFoundError: sun/management/ ExtendedPlatformComponent at java.lang.management.ManagementFactory. getPlatformMBeanServer(ManagementFactory.java:494) at org.apache.tomcat.util.modeler.Registry. getMBeanServer(Registry.java:443) at org.apache.catalina.mbeans.MBeanUtils.createServer( MBeanUtils.java:580) at org.apache.catalina.mbeans.MBeanUtils.clinit( MBeanUtils.java:77) at org.apache.catalina.mbeans.GlobalResourcesLifecycleListen er.clinit(GlobalResourcesLifecycleListener.java:66) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance( NativeConstructorAccessorImpl.java:62) at
Re: Tomcat 8 does not start with java 8 on YOSEMITE
Hi Fabio, There seems to be an issue with update 40 Early Access release of jre/jdk8(1.8.0_40). Compared with update 20 of jre/jdk8 release, you will see following lines of code has been added to getPlatfromMBeanServer: *for (final PlatformManagedObject o :* * ExtendedPlatformComponent.getMXBeans()) {* *if (!platformMBeanServer.isRegistered(o.getObjectName())) {* *addMXBean(platformMBeanServer, o);* *}* But if you look into the accompanied rt.jar of the jre, this newly introduced class(*ExtendedPlatformComponent*) can NO-WHERE be found. This issue, seems to be there across all the JAVA_VERSION=1.8.0_40 EA release, irrespective of platform. Your remedy is to move back to a stable release. Latest stable release seems to be Java SE 8u25 http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html . Regards, Ameer Mawia On Sun, Nov 23, 2014 at 4:09 AM, Fabio Ricci fabio.ri...@semweb.ch wrote: Dear tomcat community Maybe someone did have this before (and possibly solved it) On a mac book pro/JOSEMITE I installed Java 8 1.8.0_40-ea with JDK. My $JAVA_HOME is /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home Then I downloaded a tomcat 8 core from http://tomcat.apache.org/download-80.cgi When I start this tomcat 8 I get the following Java exceptio - see below. With this Java 8 also my older tomcat 7 throws the same exception. The official oracle java test page ( https://www.java.com/en/download/installed.jsp) says, I have already java uptodate. The exception: It seems that sun/management/ExtendedPlatformComponent be not part of tomcat 8 nor java 8 ... Does anyone have some hints for me? I cannot figure our what is wrong ... Thank you very much in advance! Kind regards Fabio PS: The exception on start (/bin/startup.sh): 22-Nov-2014 18:43:02.218 SEVERE [main] org.apache.tomcat.util.digester.Digester.startElement Begin event threw error * java.lang.NoClassDefFoundError: sun/management/ExtendedPlatformComponent* at java.lang.management.ManagementFactory.getPlatformMBeanServer(ManagementFactory.java:494) at org.apache.tomcat.util.modeler.Registry.getMBeanServer(Registry.java:443) at org.apache.catalina.mbeans.MBeanUtils.createServer(MBeanUtils.java:580) at org.apache.catalina.mbeans.MBeanUtils.clinit(MBeanUtils.java:77) at org.apache.catalina.mbeans.GlobalResourcesLifecycleListener.clinit(GlobalResourcesLifecycleListener.java:66) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at java.lang.Class.newInstance(Class.java:442) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:117) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1184) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182) 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:2786) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649) at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1457) at org.apache.catalina.startup.Catalina.load(Catalina.java:551) at org.apache.catalina.startup.Catalina.load(Catalina.java:599) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at
Re: Tomcat 8 does not start with java 8 on YOSEMITE
Hi Ameer thank you very much! Indeed this seems to be an issue in for OS X. They just forgot to check-in the code ;) I will follow your suggestion. Linux is working fine with Java 8, tomcat 8. Regards Fabio Kind regards / Meilleures salutations / Freundliche Grüsse Fabio Ricci semweb Semantic Web Technologies · Records Management Software systems · ICT coaching · ICT Projects leading www.semweb.ch Weinmanngasse 26 CH-8700 Küsnacht ZH (Switzerland) Tel. +41 (076) 5281961 +39 (389) 0681334 Skype: semweb-llc Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipients, are confidential and maybe privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email, and delete this message and any attachments from your system. Thank you. From: Ameer Mawia ameer.ma...@gmail.com Reply: Tomcat Users List users@tomcat.apache.org Date: 24 November 2014 at 00:44:45 To: Tomcat Users List users@tomcat.apache.org Subject: Re: Tomcat 8 does not start with java 8 on YOSEMITE Hi Fabio, There seems to be an issue with update 40 Early Access release of jre/jdk8(1.8.0_40). Compared with update 20 of jre/jdk8 release, you will see following lines of code has been added to getPlatfromMBeanServer: for (final PlatformManagedObject o : ExtendedPlatformComponent.getMXBeans()) { if (!platformMBeanServer.isRegistered(o.getObjectName())) { addMXBean(platformMBeanServer, o); } But if you look into the accompanied rt.jar of the jre, this newly introduced class(ExtendedPlatformComponent) can NO-WHERE be found. This issue, seems to be there across all the JAVA_VERSION=1.8.0_40 EA release, irrespective of platform. Your remedy is to move back to a stable release. Latest stable release seems to be Java SE 8u25. Regards, Ameer Mawia On Sun, Nov 23, 2014 at 4:09 AM, Fabio Ricci fabio.ri...@semweb.ch wrote: Dear tomcat community Maybe someone did have this before (and possibly solved it) On a mac book pro/JOSEMITE I installed Java 8 1.8.0_40-ea with JDK. My $JAVA_HOME is /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home Then I downloaded a tomcat 8 core from http://tomcat.apache.org/download-80.cgi When I start this tomcat 8 I get the following Java exceptio - see below. With this Java 8 also my older tomcat 7 throws the same exception. The official oracle java test page (https://www.java.com/en/download/installed.jsp) says, I have already java uptodate. The exception: It seems that sun/management/ExtendedPlatformComponent be not part of tomcat 8 nor java 8 ... Does anyone have some hints for me? I cannot figure our what is wrong ... Thank you very much in advance! Kind regards Fabio PS: The exception on start (/bin/startup.sh): 22-Nov-2014 18:43:02.218 SEVERE [main] org.apache.tomcat.util.digester.Digester.startElement Begin event threw error java.lang.NoClassDefFoundError: sun/management/ExtendedPlatformComponent at java.lang.management.ManagementFactory.getPlatformMBeanServer(ManagementFactory.java:494) at org.apache.tomcat.util.modeler.Registry.getMBeanServer(Registry.java:443) at org.apache.catalina.mbeans.MBeanUtils.createServer(MBeanUtils.java:580) at org.apache.catalina.mbeans.MBeanUtils.clinit(MBeanUtils.java:77) at org.apache.catalina.mbeans.GlobalResourcesLifecycleListener.clinit(GlobalResourcesLifecycleListener.java:66) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at java.lang.Class.newInstance(Class.java:442) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:117) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1184) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182) 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:2786) at
Tomcat 8 does not start with java 8 on YOSEMITE
Dear tomcat community Maybe someone did have this before (and possibly solved it) On a mac book pro/JOSEMITE I installed Java 8 1.8.0_40-ea with JDK. My $JAVA_HOME is /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home Then I downloaded a tomcat 8 core from http://tomcat.apache.org/download-80.cgi When I start this tomcat 8 I get the following Java exceptio - see below. With this Java 8 also my older tomcat 7 throws the same exception. The official oracle java test page (https://www.java.com/en/download/installed.jsp) says, I have already java uptodate. The exception: It seems that sun/management/ExtendedPlatformComponent be not part of tomcat 8 nor java 8 ... Does anyone have some hints for me? I cannot figure our what is wrong ... Thank you very much in advance! Kind regards Fabio PS: The exception on start (/bin/startup.sh): 22-Nov-2014 18:43:02.218 SEVERE [main] org.apache.tomcat.util.digester.Digester.startElement Begin event threw error * java.lang.NoClassDefFoundError: sun/management/ExtendedPlatformComponent* at java.lang.management.ManagementFactory.getPlatformMBeanServer(ManagementFactory.java:494) at org.apache.tomcat.util.modeler.Registry.getMBeanServer(Registry.java:443) at org.apache.catalina.mbeans.MBeanUtils.createServer(MBeanUtils.java:580) at org.apache.catalina.mbeans.MBeanUtils.clinit(MBeanUtils.java:77) at org.apache.catalina.mbeans.GlobalResourcesLifecycleListener.clinit(GlobalResourcesLifecycleListener.java:66) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at java.lang.Class.newInstance(Class.java:442) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:117) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1184) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182) 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:2786) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649) at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1457) at org.apache.catalina.startup.Catalina.load(Catalina.java:551) at org.apache.catalina.startup.Catalina.load(Catalina.java:599) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:310) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:484) -- Kind regards / Meilleures salutations / Freundliche Grüsse /Fabio Ricci/ semweb Semantic Web Technologies · Records Management Software systems · ICT coaching · ICT Projects leading *www.semweb.ch* http://semweb.ch Weinmanngasse 26 CH-8700 Küsnacht ZH (Switzerland) /Tel./ +41 (076) 5281961 +39 (389) 0681334 /Skype:/ *semweb-llc* http://myskype.info/semweb-llc *Confidentiality Warning*: This message and any attachments are intended only for the use of the intended recipients, are confidential and maybe privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient,