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I cannot run the code sample on Springboot java does anyone has solution ? What can I do i dont have no idea im just started to this...

09:57:28.372 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Included patterns for restart : [] 09:57:28.374 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Excluded patterns for restart : [/spring-boot-starter-[\w-]+/, /spring-boot/target/classes/, /spring-boot-starter/target/classes/, /spring-boot-devtools/target/classes/, /spring-boot-actuator/target/classes/, /spring-boot-autoconfigure/target/classes/] 09:57:28.374 [main] DEBUG org.springframework.boot.devtools.restart.ChangeableUrls - Matching URLs for reloading : [file:/D:/Java/workspace/petclinic/target/classes/]

 . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ [32m :: Spring Boot :: [39m [2m (v2.0.0.RELEASE)[0;39m [2m2021-10-08 09:57:28.541[0;39m [32m INFO[0;39m [35m564[0;39m [2m---[0;39m [2m[ restartedMain][0;39m [36mc.j.petclinic.PetClinicApplication [0;39m [2m:[0;39m Starting PetClinicApplication on DESKTOP-BCNBHLN with PID 564 (D:\Java\workspace\petclinic\target\classes started by PcOne in D:\Java\workspace\petclinic) [2m2021-10-08 09:57:28.542[0;39m [32m INFO[0;39m [35m564[0;39m [2m---[0;39m [2m[ restartedMain][0;39m [36mc.j.petclinic.PetClinicApplication [0;39m [2m:[0;39m No active profile set, falling back to default profiles: default [2m2021-10-08 09:57:28.575[0;39m [32m INFO[0;39m [35m564[0;39m [2m---[0;39m [2m[ restartedMain][0;39m [36mConfigServletWebServerApplicationContext[0;39m [2m:[0;39m Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@43586274: startup date [Fri Oct 08 09:57:28 TRT 2021]; root of context hierarchy [2m2021-10-08 09:57:29.088[0;39m [31mERROR[0;39m [35m564[0;39m [2m---[0;39m [2m[ restartedMain][0;39m [36mo.s.boot.SpringApplication [0;39m [2m:[0;39m Application run failed java.lang.IllegalStateException: Cannot load configuration class: com.javaegitimleri.petclinic.PetClinicApplication at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:416) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:254) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:128) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:693) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE] at com.javaegitimleri.petclinic.PetClinicApplication.main(PetClinicApplication.java:11) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.0.0.RELEASE.jar:2.0.0.RELEASE] Caused by: java.lang.ExceptionInInitializerError: null at org.springframework.context.annotation.ConfigurationClassEnhancer.newEnhancer(ConfigurationClassEnhancer.java:122) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:110) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:405) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE] ... 17 common frames omitted Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.reflect.InaccessibleObjectException-->Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @55a147cc at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:464) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:336) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:93) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:91) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:116) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:291) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.KeyFactory$Generator.create(KeyFactory.java:221) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:174) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:153) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.proxy.Enhancer.<clinit>(Enhancer.java:73) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] ... 20 common frames omitted Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @55a147cc at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357) ~[na:na] at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[na:na] at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199) ~[na:na] at java.base/java.lang.reflect.Method.setAccessible(Method.java:193) ~[na:na] at org.springframework.cglib.core.ReflectUtils$1.run(ReflectUtils.java:61) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at java.base/java.security.AccessController.doPrivileged(AccessController.java:554) ~[na:na] at org.springframework.cglib.core.ReflectUtils.<clinit>(ReflectUtils.java:52) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:243) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:329) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE] ... 32 common frames omitted [2m2021-10-08 09:57:29.089[0;39m [32m INFO[0;39m [35m564[0;39m [2m---[0;39m [2m[ restartedMain][0;39m [36mConfigServletWebServerApplicationContext[0;39m [2m:[0;39m Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@43586274: startup date [Fri Oct 08 09:57:28 TRT 2021]; root of context hierarchy
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  • Hi, what is your java version? Could this help -> stackoverflow.com/questions/66974846/… ? Commented Oct 8, 2021 at 7:06
  • 16.0.2........... Commented Oct 8, 2021 at 9:24

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I got solution. When I changed the Springboot version to 2.1.1 its done!

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Great! For future reference, please avoid images. Instead, add the code in your questions / answers. Thanks!
Thank you! Can you contributor me

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