title: appengine-maven-plugin:1.3.1 run failed non zero exit
body: <p>I'm trying to create <code>hello-endpoint-framework</code> using <code>maven archetype</code><br>
  I used this command to build project.  </p>
  
  <pre><code>mvn archetype:generate -Dappengine-version=1.9.63 -Djava8=true -DCloudSDK_Tooling=false -Dapplication-id=your-app-id -Dfilter=com.google.appengine.archetypes:
  </code></pre>
  
  <p>I set <code>-Djava8=true</code> because I want to run this in <strong>java8</strong>.  </p>
  
  <p>Here is <code>pom.xml</code> file.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
  
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
      &lt;packaging&gt;war&lt;/packaging&gt;
      &lt;version&gt;1.0-SNAPSHOT&lt;/version&gt;
  
      &lt;groupId&gt;org.azeem.endpoints&lt;/groupId&gt;
      &lt;artifactId&gt;endpoints&lt;/artifactId&gt;
  
      &lt;properties&gt;
          &lt;maven.compiler.source&gt;1.7&lt;/maven.compiler.source&gt;
          &lt;maven.compiler.target&gt;1.7&lt;/maven.compiler.target&gt;
          &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
      &lt;/properties&gt;
  
      &lt;dependencies&gt;
          &lt;!-- Compile/runtime dependencies --&gt;
          &lt;!-- Uncomment to use Endpoints Frameworks v1.0 and comment the v2.0 section --&gt;
          &lt;!--&lt;dependency&gt;
                &lt;groupId&gt;com.google.appengine&lt;/groupId&gt;
                &lt;artifactId&gt;appengine-endpoints&lt;/artifactId&gt;
                &lt;version&gt;1.9.53&lt;/version&gt;
          &lt;/dependency&gt;--&gt;
          &lt;!-- End of Endpoints Frameworks v1.0 --&gt;
          &lt;!-- Endpoints Frameworks v2.0 --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;com.google.endpoints&lt;/groupId&gt;
              &lt;artifactId&gt;endpoints-framework&lt;/artifactId&gt;
              &lt;version&gt;2.0.7&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;!-- End of Endpoints Frameworks v2.0 --&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;com.google.appengine&lt;/groupId&gt;
              &lt;artifactId&gt;appengine-api-1.0-sdk&lt;/artifactId&gt;
              &lt;version&gt;1.9.53&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;javax.servlet&lt;/groupId&gt;
              &lt;artifactId&gt;servlet-api&lt;/artifactId&gt;
              &lt;version&gt;2.5&lt;/version&gt;
              &lt;scope&gt;provided&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;javax.inject&lt;/groupId&gt;
              &lt;artifactId&gt;javax.inject&lt;/artifactId&gt;
              &lt;version&gt;1&lt;/version&gt;
          &lt;/dependency&gt;
      &lt;/dependencies&gt;
  
      &lt;build&gt;
          &lt;!-- for hot reload of the web application--&gt;
          &lt;outputDirectory&gt;${project.build.directory}/${project.build.finalName}/WEB-INF/classes&lt;/outputDirectory&gt;
          &lt;plugins&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;com.google.cloud.tools&lt;/groupId&gt;
                  &lt;artifactId&gt;appengine-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;1.3.1&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;!-- deploy configuration --&gt;
                  &lt;/configuration&gt;
              &lt;/plugin&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;com.google.cloud.tools&lt;/groupId&gt;
                  &lt;artifactId&gt;endpoints-framework-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;1.0.0&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;!-- plugin configuration --&gt;
                      &lt;hostname&gt;YOUR-PROJECT-ID.appspot.com&lt;/hostname&gt;
                  &lt;/configuration&gt;
              &lt;/plugin&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
                  &lt;artifactId&gt;versions-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;2.1&lt;/version&gt;
                  &lt;executions&gt;
                      &lt;execution&gt;
                          &lt;phase&gt;compile&lt;/phase&gt;
                          &lt;goals&gt;
                              &lt;goal&gt;display-dependency-updates&lt;/goal&gt;
                              &lt;goal&gt;display-plugin-updates&lt;/goal&gt;
                          &lt;/goals&gt;
                      &lt;/execution&gt;
                  &lt;/executions&gt;
              &lt;/plugin&gt;
          &lt;/plugins&gt;
      &lt;/build&gt;
  &lt;/project&gt;
  </code></pre>
  
  <p>After this I run this command <code>mvn clean package</code> to build project. And then I run <code>mvn appengine:run</code> but I got this error. <strong>appengine-maven-plugin:1.3.1 run failed non zero exit</strong>  </p>
  
  <p>I re-run my command with <strong>-e</strong> And here is what I got.</p>
  
  <pre><code>[INFO]   com.google.cloud.tools:appengine-maven-plugin ........ 1.3.1 -&gt; 1.3.2
  [INFO]   com.google.cloud.tools:endpoints-framework-maven-plugin  1.0.0 -&gt; 1.0.3
  
  [INFO]
  [WARNING] The following plugins do not have their version specified:
  [WARNING]   maven-clean-plugin ........................ (from super-pom) 3.1.0
  [WARNING]   maven-compiler-plugin ..................... (from super-pom) 3.7.0
  [WARNING]   maven-deploy-plugin ....................... (from super-pom) 2.8.2
  [WARNING]   maven-install-plugin ...................... (from super-pom) 2.5.2
  [WARNING]   maven-resources-plugin .................... (from super-pom) 3.1.0
  [WARNING]   maven-site-plugin ......................... (from super-pom) 3.7.1
  [WARNING]   maven-surefire-plugin .................... (from super-pom) 2.21.0
  [WARNING]   maven-war-plugin .......................... (from super-pom) 3.2.0
  [INFO]
  [WARNING] Project does not define minimum Maven version, default is: 2.0
  [INFO] Plugins require minimum Maven version of: 3.0
  [INFO] Note: the super-pom from Maven 3.5.3 defines some of the plugin
  [INFO]       versions and may be influencing the plugins required minimum Maven
  [INFO]       version.
  [INFO]
  [ERROR] Project does not define required minimum version of Maven.
  [ERROR] Update the pom.xml to contain
  [ERROR]     &lt;prerequisites&gt;
  [ERROR]       &lt;maven&gt;3.0&lt;/maven&gt;
  [ERROR]     &lt;/prerequisites&gt;
  [INFO]
  [INFO] Require Maven 2.0.1 to use the following plugin updates:
  [INFO]   maven-war-plugin .............................................. 2.0.2
  [INFO]
  [INFO] Require Maven 2.0.2 to use the following plugin updates:
  [INFO]   maven-site-plugin ........................................ 2.0-beta-7
  [INFO]
  [INFO] Require Maven 2.0.6 to use the following plugin updates:
  [INFO]   maven-clean-plugin .............................................. 2.5
  [INFO]   maven-deploy-plugin ........................................... 2.8.1
  [INFO]   maven-install-plugin .......................................... 2.5.1
  [INFO]   maven-resources-plugin .......................................... 2.6
  [INFO]   maven-site-plugin ............................................. 2.0.1
  [INFO]   maven-surefire-plugin ......................................... 2.4.3
  [INFO]   maven-war-plugin ................................................ 2.4
  [INFO]
  [INFO] Require Maven 2.0.9 to use the following plugin updates:
  [INFO]   maven-compiler-plugin ........................................... 3.1
  [INFO]   maven-surefire-plugin .......................................... 2.17
  [INFO]
  [INFO] Require Maven 2.1.0 to use the following plugin updates:
  [INFO]   maven-site-plugin ............................................. 2.1.1
  [INFO]
  [INFO] Require Maven 2.2.0 to use the following plugin updates:
  [INFO]   maven-site-plugin ............................................... 3.0
  [INFO]
  [INFO] Require Maven 2.2.1 to use the following plugin updates:
  [INFO]   maven-clean-plugin ............................................ 2.6.1
  [INFO]   maven-compiler-plugin ........................................... 3.3
  [INFO]   maven-deploy-plugin ........................................... 2.8.2
  [INFO]   maven-install-plugin .......................................... 2.5.2
  [INFO]   maven-resources-plugin .......................................... 2.7
  [INFO]   maven-site-plugin ............................................. 3.7.1
  [INFO]   maven-surefire-plugin .......................................... 2.20
  [INFO]   maven-war-plugin ................................................ 2.6
  [INFO]   org.codehaus.mojo:versions-maven-plugin ......................... 2.2
  [INFO]
  [INFO] Require Maven 3.0 to use the following plugin updates:
  [INFO]   maven-clean-plugin ............................................ 3.1.0
  [INFO]   maven-compiler-plugin ......................................... 3.7.0
  [INFO]   maven-resources-plugin ........................................ 3.1.0
  [INFO]   maven-surefire-plugin ........................................ 2.21.0
  [INFO]   maven-war-plugin .............................................. 3.2.0
  [INFO]   org.codehaus.mojo:versions-maven-plugin ......................... 2.5
  [INFO]
  [INFO]
  [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ en
  dpoints ---
  [INFO] Using 'UTF-8' encoding to copy filtered resources.
  [INFO] skip non existing resourceDirectory C:\Users\DELL\Downloads\Test\endpoint
  s\src\test\resources
  [INFO]
  [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ endpoin
  ts ---
  [INFO] No sources to compile
  [INFO]
  [INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ endpoints ---
  [INFO] No tests to run.
  [INFO]
  [INFO] --- maven-war-plugin:2.2:war (default-war) @ endpoints ---
  WARNING: An illegal reflective access operation has occurred
  WARNING: Illegal reflective access by com.thoughtworks.xstream.core.util.Fields
  (file:/C:/Users/DELL/.m2/repository/com/thoughtworks/xstream/xstream/1.3.1/xstre
  am-1.3.1.jar) to field java.util.Properties.defaults
  WARNING: Please consider reporting this to the maintainers of com.thoughtworks.x
  stream.core.util.Fields
  WARNING: Use --illegal-access=warn to enable warnings of further illegal reflect
  ive access operations
  WARNING: All illegal access operations will be denied in a future release
  [INFO] Packaging webapp
  [INFO] Assembling webapp [endpoints] in [C:\Users\DELL\Downloads\Test\endpoints\
  target\endpoints-1.0-SNAPSHOT]
  [INFO] Processing war project
  [INFO] Copying webapp resources [C:\Users\DELL\Downloads\Test\endpoints\src\main
  \webapp]
  [INFO] Webapp assembled in [187 msecs]
  [INFO] Building war: C:\Users\DELL\Downloads\Test\endpoints\target\endpoints-1.0
  -SNAPSHOT.war
  [INFO] WEB-INF\web.xml already added, skipping
  [INFO]
  [INFO] &lt;&lt;&lt; appengine-maven-plugin:1.3.1:run (default-cli) &lt; package @ endpoints
  &lt;&lt;&lt;
  [INFO]
  [INFO]
  [INFO] --- appengine-maven-plugin:1.3.1:run (default-cli) @ endpoints ---
  May 10, 2018 6:25:00 AM com.google.cloud.tools.appengine.cloudsdk.CloudSdk logCo
  mmand
  INFO: submitting command: C:\Program Files\Java\jdk-10.0.1\bin\java.exe -javaage
  nt:C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\platform\google_appe
  ngine\google\appengine\tools\java\lib\agent\appengine-agent.jar -Dappengine.sdk.
  root=C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\platform\google_ap
  pengine\google\appengine\tools\java -cp C:\Program Files (x86)\Google\Cloud SDK\
  google-cloud-sdk\platform\google_appengine\google\appengine\tools\java\lib\appen
  gine-tools-api.jar com.google.appengine.tools.development.DevAppServerMain --all
  ow_remote_shutdown --disable_update_check C:\Users\DELL\Downloads\Test\endpoints
  \target\endpoints-1.0-SNAPSHOT
  [INFO] GCLOUD: Warning: Google App Engine Java 7 runtime is deprecated.
  [INFO] GCLOUD: Warning: See https://cloud.google.com/appengine/docs/deprecations
  /java7
  [INFO] GCLOUD: java.lang.RuntimeException: Unable to create a DevAppServer
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerFactory.do
  CreateDevAppServer(DevAppServerFactory.java:352)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerFactory.ac
  cess$000(DevAppServerFactory.java:31)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerFactory$1.
  run(DevAppServerFactory.java:285)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerFactory$1.
  run(DevAppServerFactory.java:282)
  [INFO] GCLOUD:  at java.base/java.security.AccessController.doPrivileged(Native
  Method)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerFactory.cr
  eateDevAppServer(DevAppServerFactory.java:281)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerMain$Start
  Action.apply(DevAppServerMain.java:348)
  [INFO] GCLOUD:  at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(
  Parser.java:45)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerMain.run(D
  evAppServerMain.java:223)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerMain.main(
  DevAppServerMain.java:214)
  [INFO] GCLOUD: Caused by: java.lang.ClassCastException: ClassLoader is jdk.inter
  nal.loader.ClassLoaders$AppClassLoader@7591083d, not a URLClassLoader.
  [INFO] GCLOUD:  at com.google.apphosting.utils.security.SecurityManagerInstaller
  .generatePolicyFile(SecurityManagerInstaller.java:139)
  [INFO] GCLOUD:  at com.google.apphosting.utils.security.SecurityManagerInstaller
  .install(SecurityManagerInstaller.java:94)
  [INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerFactory.do
  CreateDevAppServer(DevAppServerFactory.java:329)
  [INFO] GCLOUD:  ... 9 more
  [INFO] ------------------------------------------------------------------------
  [INFO] BUILD FAILURE
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time: 7.857 s
  [INFO] Finished at: 2018-05-10T06:25:01+05:00
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal com.google.cloud.tools:appengine-maven-plugin:1.3
  .1:run (default-cli) on project endpoints: Execution default-cli of goal com.goo
  gle.cloud.tools:appengine-maven-plugin:1.3.1:run failed: Non zero exit: 1 -&gt; [He
  lp 1]
  org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal c
  om.google.cloud.tools:appengine-maven-plugin:1.3.1:run (default-cli) on project
  endpoints: Execution default-cli of goal com.google.cloud.tools:appengine-maven-
  plugin:1.3.1:run failed: Non zero exit: 1
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:213)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:154)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:146)
      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.SingleThreaded
  Builder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleSt
  arter.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:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccesso
  rImpl.java:62)
      at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMetho
  dAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:564)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launche
  r.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:2
  29)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launc
  her.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356
  )
  Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-c
  li of goal com.google.cloud.tools:appengine-maven-plugin:1.3.1:run failed: Non z
  ero exit: 1
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBui
  ldPluginManager.java:148)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:208)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:154)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:146)
      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.SingleThreaded
  Builder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleSt
  arter.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:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccesso
  rImpl.java:62)
      at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMetho
  dAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:564)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launche
  r.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:2
  29)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launc
  her.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356
  )
  Caused by: com.google.cloud.tools.appengine.api.AppEngineException: Non zero exi
  t: 1
      at com.google.cloud.tools.appengine.cloudsdk.process.NonZeroExceptionExitLis
  tener.onExit (NonZeroExceptionExitListener.java:30)
      at com.google.cloud.tools.appengine.cloudsdk.internal.process.DefaultProcess
  Runner.syncRun (DefaultProcessRunner.java:211)
      at com.google.cloud.tools.appengine.cloudsdk.internal.process.DefaultProcess
  Runner.run (DefaultProcessRunner.java:137)
      at com.google.cloud.tools.appengine.cloudsdk.CloudSdk.runDevAppServer1Comman
  d (CloudSdk.java:300)
      at com.google.cloud.tools.appengine.cloudsdk.CloudSdkAppEngineDevServer1.run
   (CloudSdkAppEngineDevServer1.java:131)
      at com.google.cloud.tools.maven.RunMojo.runServer (RunMojo.java:286)
      at com.google.cloud.tools.maven.RunMojo.execute (RunMojo.java:282)
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBui
  ldPluginManager.java:137)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:208)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:154)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.ja
  va:146)
      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.SingleThreaded
  Builder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleSt
  arter.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:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccesso
  rImpl.java:62)
      at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMetho
  dAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:564)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launche
  r.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:2
  29)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launc
  her.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356
  )
  [ERROR]
  [ERROR] Re-run Maven using the -X switch to enable full debug logging.
  [ERROR]
  [ERROR] For more information about the errors and possible solutions, please rea
  d the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutio
  nException
  
  C:\Users\DELL\Downloads\Test\endpoints&gt;
  </code></pre>
  
  <p>I understand only one error <strong>Project does not define required minimum version of Maven.</strong> I set the minimum version in pom but still same error.</p>
  
  <p>After this I also tried to update gcloud components <code>gcloud components update</code> But not able to solve this error. </p>
  
  <p>I'm using <strong>JDK10</strong>  </p>
  
  <p>I also have another question, Is this project is for <strong>java7</strong> or for <strong>java8</strong>.
  I want to run this project in <strong>java8</strong> that's why I set <code>-Djava8=true</code> But I don't think this project is created for java8 enviroment, is it ? If not how can I do that ?  </p>
  
  <p>And what about <strong>appengine-maven-plugin</strong> error ? How can I solve this ? And why I'm seeing this, is there any problem in <strong>Cloud SDK</strong> ? Or there is anyother reason.</p>