使用Maven的proguard插件，在Tomcat服务器中部署一个restlet应用。
我尝试使用Maven在Tomcat上部署Restlet应用程序。使用命令mvn run:tomcat7可以正常工作。但是当我包含使用proguard进行混淆的代码时，在构建jar时会给我错误。我使用命令mvn package检查包装是否工作正常。
<build>
<finalName>abdf-fwc</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<url>http://${deployHost}:8080/manager/text</url>
<server>TomcatServer</server>
<username>admin</username>
<password>password</password>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<webXml>${project.basedir}/WebContent/WEB-INF/web.xml</webXml>
<webResources>
<resource>
<directory>${project.basedir}/WebContent/</directory>
<includes>
<include>WEB-INF/applicationContext.xml</include>
</includes>
</resource>
<resource>
<directory>${project.basedir}/src/main/resources/</directory>
<targetPath>WEB-INF/classes</targetPath>
</resource>
</webResources>
</configuration>
</plugin>
<!-- BEGIN OBFUSCATE -->
<plugin>
<groupId>com.github.wvengen</groupId>
<artifactId>proguard-maven-plugin</artifactId>
<version>2.0.6</version>
<dependencies>
<dependency>
<groupId>net.sf.proguard</groupId>
<artifactId>proguard-base</artifactId>
<version>4.10</version>
</dependency>
</dependencies>
<executions>
<execution>
<phase>package</phase>
<goals><goal>proguard</goal></goals>
</execution>
</executions>
<configuration>
<options>
<option>-allowaccessmodification</option>
<option>-keep public class * extends java.applet.Applet { *; }</option>
</options>
<libs>
<lib>${java.home}/lib/rt.jar</lib>
</libs>
</configuration>
</plugin>
<!-- END OBFUSCATE -->
</plugins>
</build>
错误是：
[INFO] --- proguard-maven-plugin:2.0.6:proguard (default) @ framework ---
[WARNING] The POM for org.apache.maven:maven-archiver:jar:2.4 is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[WARNING] Error injecting: com.github.wvengen.maven.proguard.ProGuardMojo
java.lang.NoClassDefFoundError: Lorg/codehaus/plexus/archiver/jar/JarArchiver;
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2570)
at java.lang.Class.getDeclaredFields(Class.java:1903)
at com.google.inject.spi.InjectionPoint.getInjectionPoints(InjectionPoint.java:675)
at com.google.inject.spi.InjectionPoint.forInstanceMethodsAndFields(InjectionPoint.java:380)
at com.google.inject.internal.ConstructorBindingImpl.getInternalDependencies(ConstructorBindingImpl.java:164)
at com.google.inject.internal.InjectorImpl.getInternalDependencies(InjectorImpl.java:613)
at com.google.inject.internal.InjectorImpl.cleanup(InjectorImpl.java:569)
at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:555)
at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:884)
at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805)
at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282)
at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214)
at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:1006)
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1038)
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1001)
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051)
at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53)
at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:65)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:133)
at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)
at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:63)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012)
at org.eclipse.sisu.inject.Guice4$1.get(Guice4.java:162)
at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)
at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:519)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:124)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:154)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java: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.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:956)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:290)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:194)
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:483)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.archiver.jar.JarArchiver
at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
... 57 more
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 16.758 s
[INFO] Finished at: 2019-02-11T11:45:51+05:30
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.github.wvengen:proguard-maven-plugin:2.0.6:proguard (default) on project framework: Execution default of goal com.github.wvengen:proguard-maven-plugin:2.0.6:proguard failed: A required class was missing while executing com.github.wvengen:proguard-maven-plugin:2.0.6:proguard: Lorg/codehaus/plexus/archiver/jar/JarArchiver;
[ERROR] -----------------------------------------------------