I am trying to start a Flowable Enterprise trial engine, but getting the below exception while starting the Tomcat server. I have changed the tomcat port to 8181 instead of 8080 since port 8080 is used by some other service. The server starts perfectly but at the end gives the below exception as a result although the homepage gets loaded but when you click on Flowable engage button the following url gets called http://localhost:8181/flowable-engage/ and status 404 error is received stating that the requested resource is not available.
2021-06-15 00:16:58.427 WARN 23320 — [ main] c.f.l.BaseLicenseCheckService : No Flowable license found in database
2021-06-15 00:19:34.804 WARN 23320 — [able-scheduled-] c.f.l.BaseLicenseCheckService : Error occurred while getting license info
com.flowable.license.exception.FlowableLicenseServiceNotInitializedException: Could not fetch license from database
2021-06-15 00:19:39.574 ERROR 23320 — [ main] o.s.b.SpringApplication : Application run failed
org.flowable.common.engine.api.FlowableException: Could not create index with name plan-items-20210614-1849-07-67747727 and alias plan-items. One possible reason could be that ES is not accessible. See root cause
at com.flowable.indexing.ElasticsearchClientImpl.createIndex(ElasticsearchClientImpl.java:162) ~[flowable-platform-indexing-3.9.2.jar:3.9.2]
at com.flowable.indexing.IndexManagerImpl.createIndexAndAlias(IndexManagerImpl.java:421) ~[flowable-platform-indexing-3.9.2.jar:3.9.2]
at com.flowable.indexing.IndexManagerImpl.createIndexesFromMappings(IndexManagerImpl.java:661) ~[flowable-platform-indexing-3.9.2.jar:3.9.2]
at com.flowable.indexing.IndexManagerImpl.createIndexesAndCustomAliasesFromMappings(IndexManagerImpl.java:524) ~[flowable-platform-indexing-3.9.2.jar:3.9.2]
at com.flowable.indexing.IndexManagerImpl.onApplicationEvent(IndexManagerImpl.java:504) ~[flowable-platform-indexing-3.9.2.jar:3.9.2]
at com.flowable.indexing.IndexManagerImpl.onApplicationEvent(IndexManagerImpl.java:43) ~[flowable-platform-indexing-3.9.2.jar:3.9.2]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:938) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.6.jar:2.4.6]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:771) ~[spring-boot-2.4.6.jar:2.4.6]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:763) [spring-boot-2.4.6.jar:2.4.6]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:438) [spring-boot-2.4.6.jar:2.4.6]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:339) [spring-boot-2.4.6.jar:2.4.6]
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:173) [spring-boot-2.4.6.jar:2.4.6]
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:153) [spring-boot-2.4.6.jar:2.4.6]
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:95) [spring-boot-2.4.6.jar:2.4.6]
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:174) [spring-web-5.3.7.jar:5.3.7]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.46]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) [catalina.jar:9.0.46]
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) [catalina.jar:9.0.46]
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:692) [catalina.jar:9.0.46]
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1023) [catalina.jar:9.0.46]
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1903) [catalina.jar:9.0.46]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_241]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_241]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-util.jar:9.0.46]
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) [?:1.8.0_241]
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:824) [catalina.jar:9.0.46]
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474) [catalina.jar:9.0.46]
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1611) [catalina.jar:9.0.46]
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:319) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366) [catalina.jar:9.0.46]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:936) [catalina.jar:9.0.46]
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:829) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.46]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) [catalina.jar:9.0.46]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) [catalina.jar:9.0.46]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_241]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-util.jar:9.0.46]
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) [?:1.8.0_241]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) [catalina.jar:9.0.46]
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.46]
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:433) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.46]
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) [catalina.jar:9.0.46]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.46]
at org.apache.catalina.startup.Catalina.start(Catalina.java:772) [catalina.jar:9.0.46]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_241]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_241]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_241]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_241]
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:342) [bootstrap.jar:9.0.46]
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:473) [bootstrap.jar:9.0.46]
Caused by: java.net.SocketTimeoutException: 30,000 milliseconds timeout on connection http-outgoing-0 [ACTIVE]
at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:834) ~[elasticsearch-rest-client-7.9.3.jar:7.9.3]
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:259) ~[elasticsearch-rest-client-7.9.3.jar:7.9.3]
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:246) ~[elasticsearch-rest-client-7.9.3.jar:7.9.3]
at com.flowable.indexing.ElasticsearchClientImpl.createIndex(ElasticsearchClientImpl.java:152) ~[flowable-platform-indexing-3.9.2.jar:3.9.2]
… 61 more
Caused by: java.net.SocketTimeoutException: 30,000 milliseconds timeout on connection http-outgoing-0 [ACTIVE]
at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.timeout(HttpAsyncRequestExecutor.java:387) ~[httpcore-nio-4.4.14.jar:4.4.14]
at org.apache.http.impl.nio.client.InternalIODispatch.onTimeout(InternalIODispatch.java:92) ~[httpasyncclient-4.1.4.jar:4.1.4]
at org.apache.http.impl.nio.client.InternalIODispatch.onTimeout(InternalIODispatch.java:39) ~[httpasyncclient-4.1.4.jar:4.1.4]
at org.apache.http.impl.nio.reactor.AbstractIODispatch.timeout(AbstractIODispatch.java:175) ~[httpcore-nio-4.4.14.jar:4.4.14]
at org.apache.http.impl.nio.reactor.BaseIOReactor.sessionTimedOut(BaseIOReactor.java:261) ~[httpcore-nio-4.4.14.jar:4.4.14]
at org.apache.http.impl.nio.reactor.AbstractIOReactor.timeoutCheck(AbstractIOReactor.java:502) ~[httpcore-nio-4.4.14.jar:4.4.14]
at org.apache.http.impl.nio.reactor.BaseIOReactor.validate(BaseIOReactor.java:211) ~[httpcore-nio-4.4.14.jar:4.4.14]
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:280) ~[httpcore-nio-4.4.14.jar:4.4.14]
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104) ~[httpcore-nio-4.4.14.jar:4.4.14]
at