C:\Users\YYM>neo4j.bat console Exception in thread “main” java.lang.NoClassDefFoundError: sun/misc/Signal at org.neo4j.server.ServerBootstrapper.installSignalHandler(ServerBootstrapper.java:235) at org.neo4j.server.ServerBootstrapper.installSignalHandlers(ServerBootstrapper.java:226) at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:98) at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:91) at org.neo4j.server.CommunityEntryPoint.main(CommunityEntryPoint.java:32) Caused by: java.lang.ClassNotFoundException: sun.misc.Signal at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) … 5 more 2022-05-01 02:25:08.808+0000 INFO [o.n.s.CommunityBootstrapper] Neo4j Server shutdown initiated by request