Trouble deploying my webapp to Tomcat7

java eclipse jsp maven tomcat7

18,914

Solution 1

From your stacktrace, I see two things;

the servlet api is included in your war-file. This is not allowed (by servlet spec), but it shouldn't prevent the app from starting. Try changing the <scope> to provided for your servlet dependency in your pom.xml
Minor / major version is wrong. This usually means that you have compiled for a newer Java version locally than what you have on your server. (e.g. compiling Java 7 locally and running Java 6 on the server). Try setting the source and target to the Java version you are running on the server in you pom.xml (maven-compiler-plugin)

Solution 2

Unsupported major minor version is one of the errors you building with one version of Java and deploying with another.

18,914

Author by

Mike Nitchie

Former classical musician, current software developer, accidental Michigander. Works on solving neat problems at CareEvolution.

Updated on June 08, 2022

Comments

Mike Nitchie almost 2 years

This is my first effort deploying my own App to a remote tomcat server. I've searched and searched my problem and can't find a solution.

I created a Maven project in eclipse with the webapp archetype. My local tomcat installation is listening on port 8080, but I have the tomcat installation on my server listening on `port 80'. I've completed and tested my app in Eclipse with Maven and Tomcat, and it works just fine.

I exported my project to a .war file and renamed it ROOT.war. Then, with the server stopped, I uploaded it into /var/lib/tomcat7/webapps/. Then I started the server and the .war file autodeployed into the /var/lib/tomcat7/webapps/ROOT. When I navigated to www.myDomain.com I got a "link seems to be broken" error from Chrome, and a 404 status code.

I checked the logs and got this:

INFO: Deploying web application archive /var/lib/tomcat7/webapps/ROOT.war
Sep 22, 2013 6:31:06 PM org.apache.catalina.startup.ContextConfig init
SEVERE: Exception fixing docBase for context []
java.util.zip.ZipException: error in opening zip file
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:131)
    at java.util.jar.JarFile.<init>(JarFile.java:150)
    at java.util.jar.JarFile.<init>(JarFile.java:87)
    at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:90)
    at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:66)
    at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:86)
    at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122)
    at sun.net.www.protocol.jar.JarURLConnection.getJarFile(JarURLConnection.java:89)
    at org.apache.catalina.startup.ExpandWar.expand(ExpandWar.java:112)
    at org.apache.catalina.startup.ContextConfig.fixDocBase(ContextConfig.java:697)
    at org.apache.catalina.startup.ContextConfig.init(ContextConfig.java:820)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:363)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:401)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:110)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:679)
Sep 22, 2013 6:31:06 PM org.apache.catalina.core.StandardContext resourcesStart
SEVERE: Error starting static Resources
java.lang.IllegalArgumentException: Invalid or unreadable WAR file : error in opening zip file

I tried re-creating the .war file and trying again, but with no luck. I read some articles explaining that this may be due to a corrupted war file (even though the file structure showed up on my server in full after restarting), so I decided to skip creating a .war file completely. I created a copy of myWebappProject that I called ROOT. Then I just uploaded the ROOT directory in my workspace directly to .../webapps/ROOT.

After starting the server and navigating to www.myDomain.com and www.myDomain.com/ROOT and www.myDomain.com/index.jsp etcetera etcetera I got the stock error message from Tomcat reading The requested resource (/ROOT/) is not available. and variations thereof. There were no exceptions in the log files that provided useful feedback.

The directory structure that I'm using is the default for a Maven project with the webapp archetype.

Thanks in advance for your help. Let me know if there is any other code or log files I can post.

EDIT per @Aaron's recommendation, I tried unzipping the warfile myself and running again. More issues this time:

INFO: validateJarFile(/var/lib/tomcat7/webapps/ROOT/WEB-INF/lib/servlet-api-3.0-alpha-1.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
Sep 22, 2013 8:35:18 PM org.apache.catalina.core.ContainerBase addChildInternal
SEVERE: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component         [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.UnsupportedClassVersionError: uploadServlet/Uploader : Unsupported major.minor version 51.0 (unable to load class uploadServlet.Uploader)
    at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2840)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1160)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1668)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546)
    at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:108)
    at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:58)
    at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:381)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:858)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:345)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)

EDIT

Thanks everyone for the help so far. I downgraded to Java 1.6 on my development machine as my server is running Java 1.6.0_24. I also used Maven to create the .war file via mvn package. I'm still getting a 404 and the 'broken link' error from Chrome. Here is the server start-up log.

INFO: Deploying web application archive /var/lib/tomcat7/webapps/ROOT.war
Sep 22, 2013 9:45:53 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(/var/lib/tomcat7/webapps/ROOT/WEB-INF/lib/servlet-api-3.0-alpha-    1.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class:    javax/servlet/Servlet.class
Sep 22, 2013 9:45:53 PM org.apache.catalina.core.ContainerBase addChildInternal
SEVERE: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component     [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.UnsupportedClassVersionError: uploadServlet/Uploader : Unsupported     major.minor version 51.0 (unable to load class uploadServlet.Uploader)
    at     org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2840)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1160)
at     org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2840)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1160)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1668)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546)
    at  org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSe t.java:108)
    at  org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java: 58)
    at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:381)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:858)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:345)
    at  org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 11 more
Sep 22, 2013 9:45:53 PM org.apache.catalina.startup.HostConfig deployWAR
SEVERE: Error deploying web application archive /var/lib/tomcat7/webapps/ROOT.war
java.lang.IllegalStateException: ContainerBase.addChild: start:     org.apache.catalina.LifecycleException: Failed to start component    [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:898)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:679)
Sep 22, 2013 9:45:53 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /var/lib/tomcat7/webapps/ROOTBackup
Sep 22, 2013 9:46:30 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took  [36,729] milliseconds.
Sep 22, 2013 9:46:30 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-80"]
Sep 22, 2013 9:46:30 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 37873 ms