NoClassDefFoundError on MBeanFactory with repackaged jar in 1.4.0.M1

[izeye]

I'm seeing the following exception after upgrading 1.4.0.M1:

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:62)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:101)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58)
Caused by: java.lang.reflect.InvocationTargetException
        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:483)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
        ... 3 more
Caused by: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:768)
        at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:362)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1183)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1172)
        at com.izeye.throwaway.Application.main(Application.java:16)
        ... 8 more
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:104)
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:78)
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:460)
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:168)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:160)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
        ... 16 more
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [StandardServer[-1]]
        at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:136)
        at org.apache.catalina.startup.Tomcat.start(Tomcat.java:345)
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:91)
        ... 21 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.catalina.mbeans.MBeanFactory
        at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
        at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
        ... 24 more

I made a sample reproducing the exception:

https://github.com/izeye/spring-boot-throwaway-branches/commits/logback

To reproduce, do as follows before seeing the exception:

gradle clean bootRepackage
java -jar build/libs/spring-boot-throwaway-branches-1.0.jar
java -jar build/libs/spring-boot-throwaway-branches-1.0.jar
java -jar build/libs/spring-boot-throwaway-branches-1.0.jar
...

In my case I saw the exception within 10 trials.

In my application, it always happens but I failed to make the sample like it.

As a side note, adding new MBeanFactory(); before SpringApplication.run(Application.class, args); prevents the exception in my case.

[snicoll]

Does the title of the issue implies you're not seeing this issue with 1.3.x?

[izeye]

@snicoll I implied it but am not 100% sure. When I tried the sample with 1.3.3.RELEASE, it didn't happen. To be sure I can check by downgrading my application tomorrow if it could help.

[wilkinsona]

Thanks, @izeye. I have reproduced the problem:

$ seq 20 | xargs -Iz java -jar build/libs/spring-boot-throwaway-branches-1.0.jar

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:62)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:101)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58)
Caused by: java.lang.reflect.InvocationTargetException
    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:498)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
    ... 3 more
Caused by: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:768)
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:362)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1183)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1172)
    at com.izeye.throwaway.Application.main(Application.java:15)
    ... 8 more
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:104)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:78)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:460)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:168)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:160)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
    ... 16 more
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [StandardServer[-1]]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:136)
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:345)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:91)
    ... 21 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.catalina.mbeans.MBeanFactory
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
    ... 24 more

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:62)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:101)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58)
Caused by: java.lang.reflect.InvocationTargetException
    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:498)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
    ... 3 more
Caused by: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:768)
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:362)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1183)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1172)
    at com.izeye.throwaway.Application.main(Application.java:15)
    ... 8 more
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:104)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:78)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:460)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:168)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:160)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
    ... 16 more
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [StandardServer[-1]]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:136)
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:345)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:91)
    ... 21 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.catalina.mbeans.MBeanFactory
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
    ... 24 more

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:62)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:101)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58)
Caused by: java.lang.reflect.InvocationTargetException
    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:498)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
    ... 3 more
Caused by: org.apache.xerces.impl.dv.ObjectFactory$ConfigurationError: Provider org.apache.xerces.impl.dv.dtd.DTDDVFactoryImpl could not be instantiated: java.lang.IllegalArgumentException: org.apache.xerces.impl.dv.dtd
    at org.apache.xerces.impl.dv.ObjectFactory.newInstance(Unknown Source)
    at org.apache.xerces.impl.dv.DTDDVFactory.getInstance(Unknown Source)
    at org.apache.xerces.impl.dv.DTDDVFactory.getInstance(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.<init>(Unknown Source)
    at org.apache.xerces.parsers.XIncludeAwareParserConfiguration.<init>(Unknown Source)
    at org.apache.xerces.parsers.XIncludeAwareParserConfiguration.<init>(Unknown Source)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at java.lang.Class.newInstance(Class.java:442)
    at org.apache.xerces.parsers.ObjectFactory.newInstance(Unknown Source)
    at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
    at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
    at org.apache.xerces.parsers.SAXParser.<init>(Unknown Source)
    at org.apache.xerces.parsers.SAXParser.<init>(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.<init>(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserImpl.<init>(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserFactoryImpl.newSAXParser(Unknown Source)
    at ch.qos.logback.core.joran.event.SaxEventRecorder.buildSaxParser(SaxEventRecorder.java:84)
    at ch.qos.logback.core.joran.event.SaxEventRecorder.recordEvents(SaxEventRecorder.java:59)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:134)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:99)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:49)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.configureByResourceUrl(LogbackLoggingSystem.java:163)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:135)
    at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:71)
    at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:49)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:106)
    at org.springframework.boot.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:301)
    at org.springframework.boot.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:253)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:225)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:201)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:163)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:136)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:119)
    at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:111)
    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:65)
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:331)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1183)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1172)
    at com.izeye.throwaway.Application.main(Application.java:15)
    ... 8 more

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:62)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:101)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58)
Caused by: java.lang.reflect.InvocationTargetException
    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:498)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
    ... 3 more
Caused by: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:768)
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:362)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1183)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1172)
    at com.izeye.throwaway.Application.main(Application.java:15)
    ... 8 more
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:104)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:78)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:460)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:168)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:160)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
    ... 16 more
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [StandardServer[-1]]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:136)
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:345)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:91)
    ... 21 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.catalina.mbeans.MBeanFactory
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
    ... 24 more

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

Ok!

No idea what's going on yet.

[wilkinsona]

MBeanFactory is initialized on the background preinitialisation thread. Intermittently, this fails silently (due to runSafely in BackgroundPreinitializer) in MBeanFactory.<clinit>:

org.apache.xerces.impl.dv.ObjectFactory$ConfigurationError: Provider org.apache.xerces.impl.dv.dtd.DTDDVFactoryImpl could not be instantiated: java.lang.IllegalArgumentException: org.apache.xerces.impl.dv.dtd
    at org.apache.xerces.impl.dv.ObjectFactory.newInstance(Unknown Source)
    at org.apache.xerces.impl.dv.DTDDVFactory.getInstance(Unknown Source)
    at org.apache.xerces.impl.dv.DTDDVFactory.getInstance(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.<init>(Unknown Source)
    at org.apache.xerces.parsers.XIncludeAwareParserConfiguration.<init>(Unknown Source)
    at org.apache.xerces.parsers.XIncludeAwareParserConfiguration.<init>(Unknown Source)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at java.lang.Class.newInstance(Class.java:442)
    at org.apache.xerces.parsers.ObjectFactory.newInstance(Unknown Source)
    at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
    at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
    at org.apache.xerces.parsers.SAXParser.<init>(Unknown Source)
    at org.apache.xerces.parsers.SAXParser.<init>(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.<init>(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserImpl.<init>(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserFactoryImpl.newSAXParser(Unknown Source)
    at org.apache.tomcat.util.digester.Digester.getParser(Digester.java:605)
    at org.apache.tomcat.util.digester.Digester.getXMLReader(Digester.java:792)
    at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1470)
    at org.apache.tomcat.util.modeler.modules.MbeansDescriptorsDigesterSource.execute(MbeansDescriptorsDigesterSource.java:170)
    at org.apache.tomcat.util.modeler.modules.MbeansDescriptorsDigesterSource.loadDescriptors(MbeansDescriptorsDigesterSource.java:149)
    at org.apache.tomcat.util.modeler.Registry.load(Registry.java:582)
    at org.apache.tomcat.util.modeler.Registry.loadDescriptors(Registry.java:659)
    at org.apache.catalina.mbeans.MBeanUtils.createRegistry(MBeanUtils.java:545)
    at org.apache.catalina.mbeans.MBeanUtils.<clinit>(MBeanUtils.java:71)
    at org.apache.catalina.mbeans.MBeanFactory.<clinit>(MBeanFactory.java:64)
    at org.springframework.boot.autoconfigure.BackgroundPreinitializer$MBeanFactoryInitializer.run(BackgroundPreinitializer.java:120)
    at org.springframework.boot.autoconfigure.BackgroundPreinitializer$1.runSafely(BackgroundPreinitializer.java:67)
    at org.springframework.boot.autoconfigure.BackgroundPreinitializer$1.run(BackgroundPreinitializer.java:61)
    at java.lang.Thread.run(Thread.java:745)

When a subsequent attempt is made to use MBeanFactory it fails with a NoClassDefFoundError due to this earlier initialisation failure.

[wilkinsona]

I now understand the cause of the problem and why it doesn't happen in 1.3.x.

The IllegalArgumentException that causes the ConfigurationError is being thrown from ClassLoader.defineClass(String) due to an attempt to define a package that has already been defined. LaunchedURLClassLoader checks that the package hasn't already been defined before attempting to define it, but, evidently, this isn't thread-safe.

In 1.3, LaunchedURLClassLoader used the ext class loader as its parent, rather than the app class loader. In 1.4, a more conventional delegation model is used which means that it now has the app class loader as its parent. Unfortunately, a side-effect of this is that when multiple threads are involved the following can happen if a package is split between the app class loader and the LaunchedURLClassLoader:

1. LaunchedURLClassLoader checks that the package has not been defined. It has not been.
2. Another Thread causes the app class loader to define the package.
3. LaunchedURLClassLoader attempts to define the package and an IllegalArgumentException results.

LaunchedURLClassLoader defines the package pre-emptively so that a package has the correct manifest associated with it. It looks like we need to figure out a way to solve that problem and be thread-safe.

[wilkinsona]

URLClassLoader performs a double-check to cope with possible race conditions when packages are being defined. We should do the same.

[izeye]

@wilkinsona I confirmed my application works with the current 1.4.0.BUILD-SNAPSHOT. Thanks!