LDAP health check failed 难道没有人遇到这样的问题吗？！！

2020-11-18 16:22:37.614  WARN 40736 --- [on(4)-127.0.0.1] o.s.b.actuate.ldap.LdapHealthIndicator   : LDAP health check failed

java.lang.NullPointerException: null
	at java.util.Hashtable.put(Hashtable.java:459) ~[na:1.8.0_40]
	at org.springframework.ldap.core.support.SimpleDirContextAuthenticationStrategy.setupEnvironment(SimpleDirContextAuthenticationStrategy.java:42) ~[spring-ldap-core-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.ldap.core.support.AbstractContextSource.setupAuthenticatedEnvironment(AbstractContextSource.java:194) ~[spring-ldap-core-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.ldap.core.support.AbstractContextSource.getAuthenticatedEnv(AbstractContextSource.java:582) ~[spring-ldap-core-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.ldap.core.support.AbstractContextSource.doGetContext(AbstractContextSource.java:134) ~[spring-ldap-core-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.ldap.core.support.AbstractContextSource.getReadOnlyContext(AbstractContextSource.java:158) ~[spring-ldap-core-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.ldap.core.LdapTemplate.executeReadOnly(LdapTemplate.java:802) ~[spring-ldap-core-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.actuate.ldap.LdapHealthIndicator.doHealthCheck(LdapHealthIndicator.java:50) ~[spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:84) ~[spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:98) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at org.springframework.boot.actuate.health.HealthEndpoint.health(HealthEndpoint.java:50) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
	at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:246) [spring-core-5.1.3.RELEASE.jar:5.1.3.RELEASE]
	at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:76) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:61) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:126) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:99) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_40]
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_40]
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1466) [na:1.8.0_40]
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_40]
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307) [na:1.8.0_40]
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1399) [na:1.8.0_40]
	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:828) [na:1.8.0_40]
	at sun.reflect.GeneratedMethodAccessor100.invoke(Unknown Source) ~[na:na]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323) [na:1.8.0_40]
	at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_40]
	at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_40]
	at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_40]
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_40]
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) [na:1.8.0_40]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) [na:1.8.0_40]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$254(TCPTransport.java:683) [na:1.8.0_40]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$5/1266146250.run(Unknown Source) [na:1.8.0_40]
	at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_40]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) [na:1.8.0_40]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_40]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_40]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]

上面就是错误日志，报错但是不影响启动，非常烦恼。

网上搜到类似的问题是 springBoot集成Elasticsearch 报错 Health check failed

解决方法也是类似，在配置文件中增加一个配置把安全检查关调！

management:
  health:
    ldap:
      enabled: false

或者说是

management.health.ldap.enabled=false

先记到这 问题是解决了