Re: Issues with Maven Plugin for GWT

Thanks for your reply. I do see CodeServer.class on my gwt-dev-2.9.0.jar on my local repo, so not sure why it isn't finding it.

And I'm using mvn version 3.6.3, so not sure why it isn't using the SSL version of the repo url. Used both java 8 and 13 to see if there is any difference but couldn't find any.

On Saturday, May 16, 2020 at 6:06:37 AM UTC-6, Thomas Broyer wrote:

On Saturday, May 16, 2020 at 2:49:06 AM UTC+2, Rogelio Flores wrote:

I tried using the Maven Plugin for GWT (https://tbroyer.github.io/gwt-maven-plugin/) with an existing project that I just upgraded to use GWT 2.9.0.

When I try running mvn run:codeserver, I get this:

[DEBUG] Arguments: com.google.gwt.dev.codeserver.CodeServer -workDir /Users/rflores/workspace/commonui/client-appmark-admin/target/gwt/codeserver -allowMissingSrc -src /Users/rflores/workspace/commonui/client-appmark-admin/src/main/java com.microfocus.am.Adminui

[WARNING] Error: Could not find or load main class com.google.gwt.dev.codeserver.CodeServer

[WARNING] Caused by: java.lang.ClassNotFoundException: com.google.gwt.dev.codeserver.CodeServer

[INFO] ------------------------------------------------------------------------

[INFO] BUILD FAILURE

[INFO] ------------------------------------------------------------------------

[INFO] Total time:  4.358 s

[INFO] Finished at: 2020-05-14T17:41:51-06:00

[INFO] ------------------------------------------------------------------------

[ERROR] Failed to execute goal net.ltgt.gwt.maven:gwt-maven-plugin:1.0.0:codeserver (default-cli) on project commonui-appmark-admin: GWT exited with status 1 -> [Help 1]

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal net.ltgt.gwt.maven:gwt-maven-plugin:1.0.0:codeserver (default-cli) on project commonui-appmark-admin: GWT exited with status 1

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)

    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)

    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)

    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)

    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)

    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)

    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)

    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)

    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)

    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)

    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)

    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)

    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)

    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke (Method.java:567)

    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)

    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)

    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)

    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

Caused by: org.apache.maven.plugin.MojoExecutionException: GWT exited with status 1

    at net.ltgt.gwt.maven.CommandLine.execute (CommandLine.java:73)

    at net.ltgt.gwt.maven.AbstractDevModeMojo.execute (AbstractDevModeMojo.java:272)

    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)

    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)

    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)

    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)

    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)

    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)

    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)

    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)

    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)

    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)

    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)

    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)

    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)

    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke (Method.java:567)

    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)

    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)

    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)

    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

[ERROR] 

[ERROR] 

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Does anybody know why?

Check in your ~/.m2/repository/com/google/gwt/gwt-dev/2.9.0/gwt-dev-2.9.0.jar that it contains the com/google/gwt/dev/codeserver/CodeServer.class, maybe your JAR is corrupt.

 

I then tried to create a brand new project to see if I was missing something in my configuration by looking at the project created from the archetype. I did this:

$ mvn archetype:generate -DarchetypeGroupId=net.ltgt.gwt.archetypes -DarchetypeVersion=1.0.0 -DarchetypeArtifactId=modular-webapp

and I get this Error:

[WARNING] Error reading archetype catalog http://repo.maven.apache.org/maven2

org.apache.maven.wagon.TransferFailedException: Transfer failed for http://repo.maven.apache.org/maven2 501 HTTPS Required

 

Which version of Maven are you using? Maven has switched to using https://repo.maven.apache.org since version 3.2.3 (https://github.com/apache/maven/commit/92161918698c55f4c108acb8c6042ad86e705b15), released 6 years ago!

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