On Monday, November 7, 2016 at 11:17:10 PM UTC+1, Zeeshan Chughtai wrote:
>
> Hi,
>
> Thanks for this, really happy to have it around.
>
> We were using 2.8.0-beta1 version for a while without any major fuss.
>
> While upgrading to 2.8.0 released version, we get stuck with codeserver
> refused to start because of class loading issues.
>
> Here are the changes which we had to made.
>
> <dependency>
> <groupId>xml-apis</groupId>
> <artifactId>xml-apis</artifactId>
> <version>1.4.01</version>
> </dependency>
>
>
> <!-- Only the exclusion part>
>
> <dependency>
> <groupId>com.google.gwt</groupId>
> <artifactId>gwt-dev</artifactId>
> <version>${com.google.gwt.version}</version>
> <scope>compile</scope>
> <exclusions>
> <exclusion>
> <groupId>org.eclipse.jetty</groupId>
> <artifactId>apache-jsp</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
>
>
> Compilation and tomcat startup went well without any real issues.
>
>
> Here is a exception which we are facing when running codeserver.
>
>
> [INFO] 23:11:19,291 |-INFO in
> ch.qos.logback.classic.joran.JoranConfigurator@225153c8 - Registering current
> configuration as safe fallback point
> [INFO]
> [INFO] Loading Java files in com.alphasense.AlphaInsightDebug.
> [INFO] Module setup completed in 4628 ms
> [ERROR] java.lang.NoClassDefFoundError:
> org/eclipse/jetty/util/component/AggregateLifeCycle
> [ERROR] at java.lang.ClassLoader.defineClass1(Native Method)
> [ERROR] at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> [ERROR] at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> [ERROR] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
> [ERROR] at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
> [ERROR] at java.security.AccessController.doPrivileged(Native Method)
> [ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> [ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> [ERROR] at java.lang.ClassLoader.defineClass1(Native Method)
> [ERROR] at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> [ERROR] at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> [ERROR] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
> [ERROR] at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
> [ERROR] at java.security.AccessController.doPrivileged(Native Method)
> [ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> [ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> [ERROR] at java.lang.ClassLoader.defineClass1(Native Method)
> [ERROR] at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> [ERROR] at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> [ERROR] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
> [ERROR] at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
> [ERROR] at java.security.AccessController.doPrivileged(Native Method)
> [ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> [ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> [ERROR] at java.lang.ClassLoader.defineClass1(Native Method)
> [ERROR] at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> [ERROR] at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> [ERROR] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
> [ERROR] at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
> [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
> [ERROR] at java.security.AccessController.doPrivileged(Native Method)
> [ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> [ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> [ERROR] at
> com.google.gwt.dev.codeserver.WebServer.start(WebServer.java:121)
> [ERROR] at
> com.google.gwt.dev.codeserver.CodeServer.start(CodeServer.java:161)
> [ERROR] at
> com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:102)
> [ERROR] at
> com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:55)
> [ERROR] Caused by: java.lang.ClassNotFoundException:
> org.eclipse.jetty.util.component.AggregateLifeCycle
> [ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> [ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> [ERROR] ... 52 more
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
>
>
> I've attached my WEB-IN/lib directory structure with beta version build and
> released version of 2.8.0 build.
>
>
If this is your WEB-INF/lib, then you have a problem: why does it contain
gwt-dev and all those Jetty JARs? Those aren't supposed to be inside the
webapp, they are dev-time dependencies, not runtime ones.
(hint: gwt-dev should have scope provided, not compile)
> The jetty version with 2.8.0 release is jetty-util-9.2.14.v20151106.jar which
>
> doesn't have AggregateLifeCycle class.
>
>
I'd bet this is due to the jetty-deploy-8.1.10.v20130312.jar. Run "mvn
dependency:tree" to find out where it comes from.
I also see guava 17 and guava-gwt 20; so overall you need a better
"dependency hygiene".
And if you somehow have conflicts between the dependencies brought by GWT
(Jetty et al.) and the ones needed by other, non-GWT dependencies; I highly
suggest splitting your project into (at least) 2 modules: one for the
client-side code and one for the server-side code, so that each can have
its own set of dependencies that won't conflict.
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