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java.lang.reflect.UndeclaredThrowableException at org.springframework.util.ReflectionUtils.rethrowRuntimeException(ReflectionUtils.java:317)[spring-core-4.3.4.RELEASE.jar!/:4.3.4.RELEASE] at org.springframework.cloud.zookeeper.config.ZookeeperPropertySource.findProperties(ZookeeperPropertySource.java:104)[spring-cloud-zookeeper-config-1.0.3.RELEASE.jar!/:1.0.3.RELEASE] at org.springframework.cloud.zookeeper.config.ZookeeperPropertySource.<init>(ZookeeperPropertySource.java:46)[spring-cloud-zookeeper-config-1.0.3.RELEASE.jar!/:1.0.3.RELEASE] at org.springframework.cloud.zookeeper.config.ZookeeperPropertySourceLocator.create(ZookeeperPropertySourceLocator.java:116)[spring-cloud-zookeeper-config-1.0.3.RELEASE.jar!/:1.0.3.RELEASE] at org.springframework.cloud.zookeeper.config.ZookeeperPropertySourceLocator.locate(ZookeeperPropertySourceLocator.java:101)[spring-cloud-zookeeper-config-1.0.3.RELEASE.jar!/:1.0.3.RELEASE] at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:89)[spring-cloud-context-1.1.6.RELEASE.jar!/:1.1.6.RELEASE] at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:635)[spring-boot-1.4.2.RELEASE.jar!/:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:349)[spring-boot-1.4.2.RELEASE.jar!/:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:313)[spring-boot-1.4.2.RELEASE.jar!/:1.4.2.RELEASE] at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:134)[spring-boot-1.4.2.RELEASE.jar!/:1.4.2.RELEASE] at org.apereo.cas.web.CasWebApplication.main(CasWebApplication.java:61)[cas-server-webapp-init-5.0.2.jar!/:5.0.2] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[?:1.8.0_111] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[?:1.8.0_111] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[?:1.8.0_111] at java.lang.reflect.Method.invoke(Method.java:498)[?:1.8.0_111] at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)[cas-pki-war-1.0.war:?] at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)[cas-pki-war-1.0.war:?] at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)[cas-pki-war-1.0.war:?] at org.springframework.boot.loader.WarLauncher.main(WarLauncher.java:59)[cas-pki-war-1.0.war:?]Caused by: java.net.UnknownHostException: zookeeper1 at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)[?:1.8.0_111] at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)[?:1.8.0_111] at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)[?:1.8.0_111] at java.net.InetAddress.getAllByName0(InetAddress.java:1276)[?:1.8.0_111] at java.net.InetAddress.getAllByName(InetAddress.java:1192)[?:1.8.0_111] at java.net.InetAddress.getAllByName(InetAddress.java:1126)[?:1.8.0_111] at org.apache.zookeeper.client.StaticHostProvider.<init>(StaticHostProvider.java:61)[zookeeper-3.4.6.jar!/:3.4.6-1569965] at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:445)[zookeeper-3.4.6.jar!/:3.4.6-1569965] at org.apache.curator.utils.DefaultZookeeperFactory.newZooKeeper(DefaultZookeeperFactory.java:29)[curator-client-2.10.0.jar!/:?] at org.apache.curator.framework.imps.CuratorFrameworkImpl$2.newZooKeeper(CuratorFrameworkImpl.java:150)[curator-framework-2.10.0.jar!/:?] at org.apache.curator.HandleHolder$1.getZooKeeper(HandleHolder.java:94)[curator-client-2.10.0.jar!/:?] at org.apache.curator.HandleHolder.internalClose(HandleHolder.java:128)[curator-client-2.10.0.jar!/:?] at org.apache.curator.HandleHolder.closeAndReset(HandleHolder.java:77)[curator-client-2.10.0.jar!/:?] at org.apache.curator.ConnectionState.reset(ConnectionState.java:217)[curator-client-2.10.0.jar!/:?] at org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:193)[curator-client-2.10.0.jar!/:?] at org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:88)[curator-client-2.10.0.jar!/:?] at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:116)[curator-client-2.10.0.jar!/:?] at org.apache.curator.framework.imps.CuratorFrameworkImpl.getZooKeeper(CuratorFrameworkImpl.java:489)[curator-framework-2.10.0.jar!/:?] at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:214)[curator-framework-2.10.0.jar!/:?] at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:203)[curator-framework-2.10.0.jar!/:?] at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:108)[curator-client-2.10.0.jar!/:?] at org.apache.curator.framework.imps.GetChildrenBuilderImpl.pathInForeground(GetChildrenBuilderImpl.java:200)[curator-framework-2.10.0.jar!/:?] at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:191)[curator-framework-2.10.0.jar!/:?] at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:38)[curator-framework-2.10.0.jar!/:?] at org.springframework.cloud.zookeeper.config.ZookeeperPropertySource.getChildren(ZookeeperPropertySource.java:116)[spring-cloud-zookeeper-config-1.0.3.RELEASE.jar!/:1.0.3.RELEASE] at org.springframework.cloud.zookeeper.config.ZookeeperPropertySource.findProperties(ZookeeperPropertySource.java:81)[spring-cloud-zookeeper-config-1.0.3.RELEASE.jar!/:1.0.3.RELEASE] ... 17 more