打开资源模块的输入流时出错-info.class

Question

我最近在 WebSphere 上部署我的应用程序时看到了这一点。

  W com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl scanJAR unable to open input stream for resource module-info.class in archive WEB-INF/lib/stax-ex-1.8.jar
                             java.lang.IllegalArgumentException
    at org.objectweb.asm.ClassReader.<init>(Unknown Source)
    at org.objectweb.asm.ClassReader.<init>(Unknown Source)
    at org.objectweb.asm.ClassReader.<init>(Unknown Source)
    at com.ibm.ws.ecs.internal.scan.impl.ClassScanner.scanInputStream(ClassScanner.java:147)
    at com.ibm.ws.ecs.internal.scan.impl.ClassScanner.scanInputStream(ClassScanner.java:124)
    at com.ibm.ws.ecs.internal.scan.impl.ClassScanner.scanInputStream(ClassScanner.java:120)
    at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.scanJAR(ScannerContextImpl.java:275)
    at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.scanJARs(ScannerContextImpl.java:315)
    at com.ibm.ws.ecs.internal.scan.context.impl.WARScannerContext.scanInternal(WARScannerContext.java:76)
    at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.scan(ScannerContextImpl.java:87)
    at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.getScannedClasses(ScannerContextImpl.java:70)
    at com.ibm.ws.webcontainer.webapp.WebAppImpl.scanForHandlesTypesClasses(WebAppImpl.java:765)
    at com.ibm.ws.webcontainer.webapp.WebAppImpl.initializeServletContainerInitializers(WebAppImpl.java:606)
    at com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.java:410)
    at com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(WebGroupImpl.java:88)
    at com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:171)
    at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:904)
    at com.ibm.ws.webcontainer.WSWebContainer.addWebApplication(WSWebContainer.java:789)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:427)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:719)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1201)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1390)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:639)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:979)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:785)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.run(ApplicationMgrImpl.java:2220)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:5487)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:5613)
    at com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:255)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2225)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:435)
    at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:378)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access0(CompositionUnitMgrImpl.java:126)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$CUInitializer.run(CompositionUnitMgrImpl.java:984)
    at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:524)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)

当我在 Tomcat 上部署相同的 WAR 时，它起作用了。我正在使用 JDK 1.7.80。还有其他人看到这个吗？如果是，解决方法是什么？

提前致谢。

Answer 1

module-info文件是在Java9中新引入的。需要更新字节码扫描库（如ASM）才能理解新的module-infoclass 文件，否则他们将遇到此异常。由于您在 Java 7 上运行，因此 module-info.class 文件没有任何作用（除了导致 ASM 崩溃）。

您的选项似乎是：

将 ASM 更新为支持 Java9 的版本，即 ASM 6.0 或更高版本
不要在您的应用程序中打包包含 module-info.class 的库，例如 stax-ex-1.8.jar。
从库中删除 module-info.class 个文件，例如 stax-ex-1.8.jar，这样像 ASM 这样的字节码扫描工具在看到它们时就不会爆炸。

打开资源模块的输入流时出错-info.class

Error opening input stream for resource module-info.class

java

deployment

websphere

web-deployment

tomcat7