The correct solution to java.util.concurrent.ExecutionException has been solved, and the pro-test is effective! ! !
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- Error report
- Solution
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Error reporting
A friend in the fan group reported an error when he typed the code (at that time, his heart was cold for a moment, and he came to me for help, and then helped him solve it smoothly. By the way, I hope it can help more people encounter this bug. Friends who will not solve it), the error message is as follows:
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/recommender]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/recommender]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@5a3ef48a] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4968) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5101) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.JarResourceSet@725c6763] at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:135) at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:722) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 9 more Caused by: java.lang.IllegalArgumentException: java.util.zip.ZipException: invalid LOC header (bad signature) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:142) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) ... 12 more Caused by: java.util.zip.ZipException: invalid LOC header (bad signature) at java.util.zip.ZipFile.read(Native Method) at java.util.zip.ZipFile.access$1400 (Unknown Source) at java.util.zip.ZipFile$ZipFileInputStream.read(Unknown Source) at java.util.zip.ZipFile$ZipFileInflaterInputStream.fill(Unknown Source) at java.util.zip.InflaterInputStream.read(Unknown Source) at sun.misc.IOUtils.readFully(Unknown Source) at java.util.jar.JarFile.getBytes(Unknown Source) at java.util.jar.JarFile.getManifestFromReference(Unknown Source) at java.util.jar.JarFile.getManifest(Unknown Source) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:140) ... 13 more Jan 22, 2018 4:27:58 pm org.apache.catalina.core.ContainerBase startInternal Severe: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:441) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:789) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.startup.Catalina.start(Catalina.java:630) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:349) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:483) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:951) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 6 more January 22, 2018 4:27:58 pm org.apache.catalina.startup.Catalina start SEVERE: The required Server component failed to start so Tomcat is unable to start. org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.startup.Catalina.start(Catalina.java:630) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:349) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:483) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:789) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 7 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:441) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 9 more Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:951) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 11 more
Solution
The solution is as follows
Find the server.xml under tomcat, open it and delete the following stuff.
<Host appBase="webapps" autoDeploy="true" name="localhost" unpackWARs="true"> <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" pattern="%h %l %u %t "%r" %s %b" prefix= "localhost_access_log." suffix=".txt"/> <Context docBase="MyProject" path="/MyProject" reloadable="true" source="org.eclipse.jst.jee.server:MyProject"/></Host>
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