title: Java (Spring Boot) - IllegalStateException: Unable to load cache item
body: <p>We have a rather complex Spring Boot project and it works fine on Windows during development. However when we run the project on Ubuntu we get a bizzare exception</p>
  <pre><code>LOGBACK: No context given for c.q.l.core.rolling.SizeAndTimeBasedRollingPolicy@310623126
    .   ____          _            __ _ _
   /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
  ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
   \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
    '  |____| .__|_| |_|_| |_\__, | / / / /
   =========|_|==============|___/=/_/_/_/
   :: Spring Boot ::        (v2.2.8.RELEASE)
  2020-07-08 12:56:42.860  INFO 6 --- [           main] redacted.Application            : Starting Application v0.0.1-SNAPSHOT on c72273bf4d02 with PID 6 (/home/plugin/app.jar started by root in /home/plugin)
  2020-07-08 12:56:42.867  INFO 6 --- [           main] redacted.Application            : The following profiles are active: default
  2020-07-08 12:56:44.745  INFO 6 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
  2020-07-08 12:56:45.119  INFO 6 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 345ms. Found 13 JPA repository interfaces.
  2020-07-08 12:56:46.089 ERROR 6 --- [           main] o.s.boot.SpringApplication               : Application run failed
  java.lang.IllegalStateException: Unable to load cache item
          at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:79) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.annotation.ConfigurationClassEnhancer.createClass(ConfigurationClassEnhancer.java:137) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:109) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:423) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:257) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:291) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:131) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:706) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE]
          at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE]
          at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE]
          at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE]
          at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE]
          at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE]
          at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE]
          at redacted.Application.main(Application.java:61) [classes!/:0.0.1-SNAPSHOT]
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111]
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111]
          at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111]
          at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) [redacted-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
          at org.springframework.boot.loader.Launcher.launch(Launcher.java:109) [redacted-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
          at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) [redacted-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
          at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88) [redacted-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
  Caused by: java.lang.ExceptionInInitializerError: null
          at java.lang.Class.forName0(Native Method) ~[na:1.8.0_111]
          at java.lang.Class.forName(Class.java:348) ~[na:1.8.0_111]
          at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:571) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:363) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:585) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:110) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_111]
          at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]
          ... 29 common frames omitted
  Caused by: java.lang.IllegalArgumentException: null
          at java.util.concurrent.ThreadPoolExecutor.&lt;init&gt;(ThreadPoolExecutor.java:1307) ~[na:1.8.0_111]
          at java.util.concurrent.ThreadPoolExecutor.&lt;init&gt;(ThreadPoolExecutor.java:1195) ~[na:1.8.0_111]
          at java.util.concurrent.Executors.newFixedThreadPool(Executors.java:89) ~[na:1.8.0_111]
          at redacted.Config.&lt;clinit&gt;(Config.java:43) ~[classes!/:0.0.1-SNAPSHOT]
          ... 39 common frames omitted
  </code></pre>
  <p>On Ubuntu we are using OpenJDK 11. It works on Windows with the same JDK, but it doesn't on Ubuntu. We also tried to run the project in a new Windows Sandbox instance and it worked flawlessly.</p>