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Spring Boot application failed to start on Java 1.8 version

2021-01-31 16:47:19.244  INFO 2436 --- [           main] technicalblog.technicalblog              : Starting technicalblog on DESKTOP-IIPG7TQ with PID 2436 (C:\Users\Gajanan\IdeaProjects\webapplication\target\classes started by Gajanan in C:\Users\Gajanan\IdeaProjects\webapplication)
2021-01-31 16:47:19.249  INFO 2436 --- [           main] technicalblog.technicalblog              : No active profile set, falling back to default profiles: default
2021-01-31 16:47:19.334  INFO 2436 --- [           main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4c6e276e: startup date [Sun Jan 31 16:47:19 IST 2021]; root of context hierarchy
2021-01-31 16:47:20.795  INFO 2436 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$b9db71a7] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-01-31 16:47:21.445  INFO 2436 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2021-01-31 16:47:21.475  INFO 2436 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2021-01-31 16:47:21.476  INFO 2436 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.34
2021-01-31 16:47:21.487  INFO 2436 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Users\Gajanan\.jdks\corretto-1.8.0_265\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\intel64\compiler;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Android;C:\Users\Gajanan\AppData\Local\Programs\Microsoft VS Code\bin;C:\adb;C:\Program Files\Java\jdk-14.0.2\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\Git\cmd;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Java\jdk-14.0.1\bin;C:\Users\Gajanan\AppData\Local\Microsoft\WindowsApps;C:\Users\Gajanan\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\Gajanan\AppData\Local\GitHubDesktop\bin;.]
2021-01-31 16:47:21.623 ERROR 2436 --- [cat-startStop-1] org.apache.catalina.core.ContainerBase   : A child container failed during start

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122) [na:1.8.0_265]
    at java.util.concurrent.FutureTask.get(FutureTask.java:192) [na:1.8.0_265]
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1420) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1410) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_265]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_265]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_265]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_265]
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) [tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted
Caused by: java.lang.AbstractMethodError: org.apache.tomcat.util.descriptor.tld.TldRuleSet.getNamespaceURI()Ljava/lang/String;
    at org.apache.tomcat.util.digester.Digester.addRuleSet(Digester.java:1601) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.tomcat.util.descriptor.DigesterFactory.newDigester(DigesterFactory.java:174) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.tomcat.util.descriptor.tld.TldParser.<init>(TldParser.java:49) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.tomcat.util.descriptor.tld.TldParser.<init>(TldParser.java:44) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.TldScanner.<init>(TldScanner.java:84) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.JasperInitializer.newTldScanner(JasperInitializer.java:100) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:81) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5245) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted

2021-01-31 16:47:21.624 ERROR 2436 --- [           main] org.apache.catalina.core.ContainerBase   : A child container failed during start

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[na:1.8.0_265]
    at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[na:1.8.0_265]
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:366) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:107) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:413) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) [spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:333) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1277) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1265) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at technicalblog.technicalblog.main(technicalblog.java:20) [classes/:na]
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) [tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1420) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1410) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_265]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_265]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_265]
    at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_265]
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:950) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[na:1.8.0_265]
    at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[na:1.8.0_265]
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 8 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) [tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted
Caused by: java.lang.AbstractMethodError: org.apache.tomcat.util.descriptor.tld.TldRuleSet.getNamespaceURI()Ljava/lang/String;
    at org.apache.tomcat.util.digester.Digester.addRuleSet(Digester.java:1601) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.tomcat.util.descriptor.DigesterFactory.newDigester(DigesterFactory.java:174) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.tomcat.util.descriptor.tld.TldParser.<init>(TldParser.java:49) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.tomcat.util.descriptor.tld.TldParser.<init>(TldParser.java:44) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.TldScanner.<init>(TldScanner.java:84) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.JasperInitializer.newTldScanner(JasperInitializer.java:100) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:81) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5245) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted

2021-01-31 16:47:21.624  INFO 2436 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2021-01-31 16:47:21.625  WARN 2436 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
2021-01-31 16:47:21.634  INFO 2436 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-01-31 16:47:21.637 ERROR 2436 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:155) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) ~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:333) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1277) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1265) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at technicalblog.technicalblog.main(technicalblog.java:20) [classes/:na]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:126) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:413) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    ... 8 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardServer[-1]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:366) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:107) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    ... 13 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Tomcat]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 15 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 17 common frames omitted
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:950) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 19 common frames omitted
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[na:1.8.0_265]
    at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[na:1.8.0_265]
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 21 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1420) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1410) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_265]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_265]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_265]
    at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_265]
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:950) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[na:1.8.0_265]
    at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[na:1.8.0_265]
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 8 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted
Caused by: java.lang.AbstractMethodError: org.apache.tomcat.util.descriptor.tld.TldRuleSet.getNamespaceURI()Ljava/lang/String;
    at org.apache.tomcat.util.digester.Digester.addRuleSet(Digester.java:1601) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.tomcat.util.descriptor.DigesterFactory.newDigester(DigesterFactory.java:174) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.tomcat.util.descriptor.tld.TldParser.<init>(TldParser.java:49) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.tomcat.util.descriptor.tld.TldParser.<init>(TldParser.java:44) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.TldScanner.<init>(TldScanner.java:84) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.JasperInitializer.newTldScanner(JasperInitializer.java:100) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:81) ~[tomcat-embed-jasper-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5245) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
    ... 6 common frames omitted

Pom.xml file

<?xml version="1.0" encoding="UTF-8"?>
<project
   xmlns="http://maven.apache.org/POM/4.0.0"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
   http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.upgrad</groupId>
   <artifactId>webapplication</artifactId>
   <version>1.0-SNAPSHOT</version>
   <parent>
      <groupId>org.springframework.boot</groupId>
      <version>2.0.5.RELEASE</version>
      <artifactId>spring-boot-starter-parent</artifactId>
   </parent>
   <dependencies>
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-web</artifactId>
         <version>2.4.1</version>
      </dependency>
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-thymeleaf</artifactId>
         <version>2.4.1</version>
      </dependency>
      <dependency>
         <groupId>org.postgresql</groupId>
         <artifactId>postgresql</artifactId>
         <version>42.2.2</version>
         <scope>runtime</scope>
      </dependency>
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-data-jpa</artifactId>
         <version>2.4.1</version>
      </dependency>
      <dependency>
         <groupId>org.javassist</groupId>
         <artifactId>javassist</artifactId>
         <version>3.23.1-GA</version>
      </dependency>
      <dependency>
         <groupId>org.apache.tomcat.embed</groupId>
         <artifactId>tomcat-embed-jasper</artifactId>
         <version>9.0.41</version>
      </dependency>
   </dependencies>
</project>

You are trying to mix jars from Tomcat 8.5.34 (the default version of Tomcat used by Spring Boot 2.0.5) and Tomcat 9.0.41. Rather than specifying a version when declaring the dependency on tomcat-embed-jasper you should allow Spring Boot's dependency management to control the version. You can do this by omitting the <version> :

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <version>9.0.41</version>
</dependency>

Spring Boot's dependency management is available as you have used spring-boot-starter-parent as your project's parent:

<parent>
    <groupId>org.springframework.boot</groupId>
    <version>2.0.5.RELEASE</version>
    <artifactId>spring-boot-starter-parent</artifactId>
</parent>

It's not directly related to you problem, but you should also remove the versions from your various spring-boot-starter-… dependencies. This will allow the version to be controlled by spring-boot-starter-parent .

If you want to use Spring Boot 2.4, you should change the version of the <parent> rather than overriding the versions of individual modules.

Seems to be the issue with version mismatch between the jars in your dependencies. Please try to remove the version from starter web. 2.4.1

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