当我启动wildfly服务器时，它显示了java.lang.UnsupportedClassVersionError，我得到的是该类是由较新版本编译的。
我试图检查环境var，以检查它们是否是错误的东西，并且所有这些都指向正确的jdk / jre版本（即1.8）。我猜想当我开始构建该项目时，我使用的是Java 11，这在Eclipse上是默认的，但是我没有安装Java SE 11，这使它在过去给了我一些问题。
17:29:33,684 WARN [org.jboss.modules.define] (MSC service thread 1-5) Failed to define class ejbRemote.PersonaBean in Module "deployment.ejbRemote.jar" from Service Module Loader: java.lang.UnsupportedClassVersionError: Failed to link ejbRemote/PersonaBean (Module "deployment.ejbRemote.jar" from Service Module Loader): ejbRemote/PersonaBean has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.lang.ClassLoader.defineClass(ClassLoader.java:839)
at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:424)
at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:555)
at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:339)
at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:126)
at org.jboss.modules.Module.loadModuleClass(Module.java:731)
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:247)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:410)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.jboss.as.ee.utils.ClassLoadingUtils.loadClass(ClassLoadingUtils.java:21)
at org.jboss.as.ee.utils.ClassLoadingUtils.loadClass(ClassLoadingUtils.java:14)
at org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.processComponentConfig(InterceptorAnnotationProcessor.java:84)
at org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.deploy(InterceptorAnnotationProcessor.java:76)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:176)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1737)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1699)
at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1557)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at java.lang.Thread.run(Thread.java:748)
此后，它会重复几次相同的错误。
我试图将mysql模块添加到wildfly服务器，并且我已经在modules \ system \ layers \ base \ com \ mysql \ main中创建了文件夹，但是我也认为我犯了一个错误并“破坏”了服务器。
<module xmlns="urn:jboss:module:1.5" name="com.mysql">
<resources>
<resource-root path="mysql-connector-java-8.0.13.jar" />
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>```
Please help. Thanks