Java 扫描条目时出错“;模块信息类“;启动Jetty服务器时
我最近在启动java服务器时看到了这一点。还有谁见过这个吗?如果是这样,解决办法是什么? 我可以确认jar和module-info.class存在于相关路径中Java 扫描条目时出错“;模块信息类“;启动Jetty服务器时,java,eclipse,jetty,slf4j,module-info,Java,Eclipse,Jetty,Slf4j,Module Info,我最近在启动java服务器时看到了这一点。还有谁见过这个吗?如果是这样,解决办法是什么? 我可以确认jar和module-info.class存在于相关路径中 MultiException[java.lang.RuntimeException: Error scanning entry module-info.class from jar file:jetty/9.2.4.v20141103/tempDirectory/webapp/WEB-INF/lib/slf4j-api-1.8.0-a
MultiException[java.lang.RuntimeException: Error scanning entry module-info.class from jar
file:jetty/9.2.4.v20141103/tempDirectory/webapp/WEB-INF/lib/slf4j-api-1.8.0-alpha2.jar, java.lang.RuntimeException: Error scanning entry module-info.class from jar
file:jetty/9.2.4.v20141103/tempDirectory/webapp/WEB-INF/lib/log4j-over-slf4j-1.8.0-alpha2.jar, java.lang.RuntimeException: Error scanning entry module-info.class from jar
file:jetty/9.2.4.v20141103/tempDirectory/webapp/WEB-INF/lib/jcl-over-slf4j-1.8.0-alpha2.jar] at
org.eclipse.jetty.annotations.AnnotationConfiguration.scanForAnnotations(AnnotationConfiguration.java:535) at
org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:446) at
org.eclipse.jetty.webapp.WebAppContext.configure(WebAppContext.java:473) at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1331) at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741) at
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499) at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at
org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:41) at
org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:186) at
org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:498) at
org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:146) at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:180) at
org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:64) at
org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:609) at
org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:528) at
org.eclipse.jetty.util.Scanner.scan(Scanner.java:391) at
org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313) at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:150) at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at
org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:560) at
org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:235) at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) at
org.eclipse.jetty.server.Server.start(Server.java:387) at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) at
org.eclipse.jetty.server.Server.doStart(Server.java:354) at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at
org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1255) at
java.security.AccessController.doPrivileged(Native Method) at
org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1174) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at
java.lang.reflect.Method.invoke(Method.java:483) at
org.eclipse.jetty.start.Main.invokeMain(Main.java:323) at
org.eclipse.jetty.start.Main.start(Main.java:820) at
org.eclipse.jetty.start.Main.main(Main.java:112)
module info.class
是一个Java9(JPMS)特性
Jetty 9.4.9(或更新版本)支持Java 9中的新JAR文件更改
无论您使用的是什么运行时JVM(Oracle Java 8,甚至类似OpenJDK 11.0.3),如果您使用的是WebApp(或服务器类加载器)中的JVM,则需要将Jetty版本升级到Jetty 9.4.x
这是因为Servlet3.x引入了字节码扫描要求。Jetty需要扫描所有JAR文件,以查找可能与您定义的webapp匹配的servlet注释或引用。一旦JEP-238成为现实,这个字节码扫描层就必须进行调整/更新/修复,以支持这些新的JAR文件结构。Jetty 9.4.9是Jetty的第一个版本,它在字节码扫描期间支持这些新的JAR文件结构
有关Java 9功能的问题:
- -从字节码扫描中排除模块信息类
- -正确支持
多版本JAR文件(JEP 238)META-INF/versions/*