spring-boot: ClassNotFoundException for EndpointMBean

Hi, On mvn spring-boot:run , I keep getting repeating ClassNotFoundException for EndpointMBean, DataEndpointMBean and LiveBeansView. Even though I have added the dependency:

<dependency>
	<groupId>org.springframework</groupId>
	<artifactId>spring-context</artifactId>
</dependency>

java.lang.ClassNotFoundException: org/springframework/boot/actuate/endpoint/jmx/EndpointMBean
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:415)
	at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.isInstanceOf(DefaultMBeanServerInterceptor.java:1394)
	at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.isInstanceOf(JmxMBeanServer.java:1091)
	at java.management/javax.management.InstanceOfQueryExp.apply(InstanceOfQueryExp.java:107)
	at java.management/javax.management.OrQueryExp.apply(OrQueryExp.java:97)
	at java.management/javax.management.OrQueryExp.apply(OrQueryExp.java:97)
	at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.objectNamesFromFilteredNamedObjects(DefaultMBeanServerInterceptor.java:1496)
	at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.queryNamesImpl(DefaultMBeanServerInterceptor.java:560)
	at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.queryNames(DefaultMBeanServerInterceptor.java:550)
	at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.queryNames(JmxMBeanServer.java:619)
	at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1485)
	at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307)
	at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1399)
	at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.queryNames(RMIConnectionImpl.java:570)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:688)
	at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:389)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:835)

About this issue

Original URL
State: closed
Created 5 years ago
Reactions: 1
Comments: 24 (6 by maintainers)

Most upvoted comments

This issue drove me crazy for an hour, until I finally understand what’s going on. This actually a feature from Spring Boot Tools! It tries to detect the beans which are running in Spring applications (why, I don’t know … ), and thinks, that connecting to a Java application is a perfectly fine thing to do over JMX. And when it connects, it asks around for various Spring beans, which are not on the classpath. But even after it fails, it retries persistently, which creates the annoying logs and a light denial-of-service attack. To disable this, in open in Eclipse the Preferences > Spring Boot Lanuage Server and uncheck the Live information - Automatic Process Tracking Enabled switch. And no more annoying exceptions!

gzsombor on Mar 1, 2021