maven plugin is not working in proxy

[fazith24]

:: loading settings :: url = jar:file:/C:/Users//.m2/repository/org/walkmod/walkmod-cmd/3.0.0/walkmod-cmd-3.0.0.jar!/ivysettings.xml
WARN [main] - unresolved dependency: org.walkmod#merger;[1.0.1, 2.0): not found
WARN [main] - unresolved dependency: org.walkmod#model-checker;[1.0, 2.0): not found
WARN [main] - unresolved dependency: org.walkmod#javalang-compiler;[2.0.0, 3.0.0): not found
WARN [main] - download failed: org.walkmod#walkmod-dead-code-cleaner-plugin;VPN!walkmod-dead-code-cleaner-plugin.jar
WARN [main] - download failed: org.walkmod#walkmod-maven-plugin;VPN!walkmod-maven-plugin.jar
WARN [main] - download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(source)
WARN [main] - download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(javadoc)
WARN [main] - download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar
WARN [main] - download failed: org.walkmod#javalang;4.8.8!javalang.jar
WARN [main] - download failed: com.squareup#javapoet;1.8.0!javapoet.jar
[ERROR] Error executing walkmod check. Enable "verbose" and/or "printError" to get more information. More information at: http://walkmod.github.io/maven-walkmod-plugin/check-mojo.html
org.walkmod.exceptions.InvalidConfigurationException: org.walkmod.conf.ConfigurationException: Ivy can not resolve the artifacts. Cause: unresolved dependency: org.walkmod#merger;[1.0.1, 2.0): not found;unresolved dependency: org.walkmod#model-checker;[1.0, 2.0): not found;unresolved dependency: org.walkmod#javalang-compiler;[2.0.0, 3.0.0): not found;download failed: org.walkmod#walkmod-dead-code-cleaner-plugin;VPN!walkmod-dead-code-cleaner-plugin.jar;download failed: org.walkmod#walkmod-maven-plugin;VPN!walkmod-maven-plugin.jar;download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(source);download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(javadoc);download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar;download failed: org.walkmod#javalang;4.8.8!javalang.jar;download failed: com.squareup#javapoet;1.8.0!javapoet.jar
at org.walkmod.conf.providers.IvyConfigurationProvider.resolveArtifacts(IvyConfigurationProvider.java:275)
at org.walkmod.conf.providers.IvyConfigurationProvider.load(IvyConfigurationProvider.java:185)
at org.walkmod.conf.ConfigurationManager.executeConfigurationProviders(ConfigurationManager.java:124)
at org.walkmod.conf.ConfigurationManager.addProviders(ConfigurationManager.java:61)
at org.walkmod.conf.ConfigurationManager.(ConfigurationManager.java:75)
at org.walkmod.conf.ConfigurationManager.(ConfigurationManager.java:79)
at org.walkmod.WalkModFacade.readConfig(WalkModFacade.java:206)
at org.walkmod.WalkModFacade.run(WalkModFacade.java:277)
at org.walkmod.WalkModFacade.check(WalkModFacade.java:324)
at org.walkmod.maven.plugins.CheckMojo.run(CheckMojo.java:35)
at org.walkmod.maven.plugins.AbstractWalkmodMojo.execute(AbstractWalkmodMojo.java:139)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: org.walkmod.conf.ConfigurationException: Ivy can not resolve the artifacts. Cause: unresolved dependency: org.walkmod#merger;[1.0.1, 2.0): not found;unresolved dependency: org.walkmod#model-checker;[1.0, 2.0): not found;unresolved dependency: org.walkmod#javalang-compiler;[2.0.0, 3.0.0): not found;download failed: org.walkmod#walkmod-dead-code-cleaner-plugin;VPN!walkmod-dead-code-cleaner-plugin.jar;download failed: org.walkmod#walkmod-maven-plugin;VPN!walkmod-maven-plugin.jar;download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(source);download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(javadoc);download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar;download failed: org.walkmod#javalang;4.8.8!javalang.jar;download failed: com.squareup#javapoet;1.8.0!javapoet.jar
... 38 more
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:28.565s
[INFO] Finished at: Thu May 03 15:45:59 IST 2018
[INFO] Final Memory: 20M/91M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.walkmod.maven.plugins:walkmod-maven-plugin:2.0.1:check (default-cli) on project : Error executing walkmod check: org.walkmod.conf.ConfigurationException: Ivy can not resolve the artifacts. Cause: unresolved dependency: org.walkmod#merger;[1.0.1, 2.0): not found;unresolved dependency: org.walkmod#model-checker;[1.0, 2.0): not found;unresolved dependency: org.walkmod#javalang-compiler;[2.0.0, 3.0.0): not found;download failed: org.walkmod#walkmod-dead-code-cleaner-plugin;VPN!walkmod-dead-code-cleaner-plugin.jar;download failed: org.walkmod#walkmod-maven-plugin;VPN!walkmod-maven-plugin.jar;download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(source);download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar(javadoc);download failed: org.walkmod#walkmod-javalang-plugin;3.0.6!walkmod-javalang-plugin.jar;download failed: org.walkmod#javalang;4.8.8!javalang.jar;download failed: com.squareup#javapoet;1.8.0!javapoet.jar -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.