以下示例：2.1.5. KieModules, KieContainer and KIE-CI。 尝试执行以下操作，编码并从我的本地仓库中检索快照。快照是众所周知的drools示例包。
public static void main(String[] args) {
KieServices ks = KieServices.Factory.get();
KieContainer kContainer = ks.newKieContainer(
ks.newReleaseId("org.drools", "default-kiesession", "6.2.0-SNAPSHOT") );
}
当我试图运行以下简单的代码时，我被埋没在嵌套的依赖项exeptions中，逐个解析我看不到隧道尽头的光。正如您在下面的pom中看到的，依赖项列表无休止地增长，并且对于3行代码来说是巨大的，每当我尝试运行我的示例时，我会越来越多地遇到类错误...
org.kie 纪伊慈 6.2.0-SNAPSHOT
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-api</artifactId>
<version>6.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-internal</artifactId>
<version>6.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
<version>6.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>6.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.sonatype.aether</groupId>
<artifactId>aether-api</artifactId>
<version>1.13.1</version>
</dependency>
<dependency>
<groupId>org.sonatype.aether</groupId>
<artifactId>aether-util</artifactId>
<version>1.13.1</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>3.2.2</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-model</artifactId>
<version>3.2.2</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-core</artifactId>
<version>3.2.2</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-aether-provider</artifactId>
<version>3.0.5</version>
</dependency>
<dependency>
<groupId>args4j</groupId>
<artifactId>args4j-tools</artifactId>
<version>2.0.23</version>
</dependency>
<!--<dependency>-->
<!--<groupId>org.apache.maven</groupId>-->
<!--<artifactId>maven-aether-provider</artifactId>-->
<!--<version>3.0.5</version>-->
<!--</dependency>-->
<!--<dependency>-->
<!--<groupId>org.apache.maven</groupId>-->
<!--<artifactId>maven-settings-builder</artifactId>-->
<!--<version>3.2.1</version>-->
<!--</dependency>-->
我花了3个小时才达到了突破点，目前的结果是：
[main] WARN org.kie.scanner.embedder.MavenSettings - Environment variable M2_HOME is not set
[main] WARN Sisu - Error injecting: org.apache.maven.execution.DefaultMavenExecutionRequestPopulator
com.google.inject.ProvisionException: Guice provision errors:
1) No implementation for org.apache.maven.repository.RepositorySystem was bound.
while locating org.apache.maven.execution.DefaultMavenExecutionRequestPopulator
1 error
at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:974)
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1000)
at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:84)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:52)
at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:100)
at org.eclipse.sisu.plexus.PlexusLifecycleManager.onProvision(PlexusLifecycleManager.java:133)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:108)
at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:55)
at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1018)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:59)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
at com.google.inject.internal.InjectorImpl$3$1.call(InjectorImpl.java:965)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1011)
at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:961)
at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:82)
at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:260)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:252)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:246)
at org.kie.scanner.embedder.MavenEmbedder.lookup(MavenEmbedder.java:492)
at org.kie.scanner.embedder.MavenEmbedder.buildMavenExecutionRequest(MavenEmbedder.java:136)
at org.kie.scanner.embedder.MavenEmbedder.<init>(MavenEmbedder.java:99)
at org.kie.scanner.embedder.MavenEmbedder.<init>(MavenEmbedder.java:88)
at org.kie.scanner.embedder.MavenEmbedder.<init>(MavenEmbedder.java:115)
at org.kie.scanner.embedder.MavenProjectLoader.parseMavenPom(MavenProjectLoader.java:23)
at org.kie.scanner.embedder.MavenProjectLoader.loadMavenProject(MavenProjectLoader.java:54)
at org.kie.scanner.Aether.<init>(Aether.java:45)
at org.kie.scanner.Aether.getAether(Aether.java:55)
at org.kie.scanner.MavenRepository.getMavenRepository(MavenRepository.java:73)
at org.kie.scanner.ArtifactResolver.<init>(ArtifactResolver.java:36)
at org.kie.scanner.KieRepositoryScannerImpl.getArtifactResolver(KieRepositoryScannerImpl.java:87)
at org.kie.scanner.KieRepositoryScannerImpl.loadArtifact(KieRepositoryScannerImpl.java:97)
at org.kie.scanner.KieRepositoryScannerImpl.loadArtifact(KieRepositoryScannerImpl.java:93)
at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.loadKieModuleFromMavenRepo(KieRepositoryImpl.java:114)
at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.getKieModule(KieRepositoryImpl.java:100)
at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.getKieModule(KieRepositoryImpl.java:77)
at org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieContainer(KieServicesImpl.java:97)
at test.main(test.java:13)
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 com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
[main] WARN org.kie.api.builder.KieScanner - Unable to parse pom.xml file of the running project: org.kie.scanner.embedder.MavenEmbedderException: com.google.inject.ProvisionException: Guice provision errors:
1) No implementation for org.apache.maven.repository.RepositorySystem was bound.
while locating org.apache.maven.execution.DefaultMavenExecutionRequestPopulator
at ClassRealm[maven, parent: ClassRealm[maven-parent, parent: null]]
at ClassRealm[maven, parent: ClassRealm[maven-parent, parent: null]]
while locating org.apache.maven.execution.MavenExecutionRequestPopulator
1 error
role: org.apache.maven.execution.MavenExecutionRequestPopulator
roleHint:
Exception in thread "main" java.lang.NoClassDefFoundError: org/sonatype/aether/connector/file/FileRepositoryConnectorFactory
at org.kie.scanner.Aether.newRepositorySystem(Aether.java:87)
at org.kie.scanner.Aether.<init>(Aether.java:63)
at org.kie.scanner.Aether.<init>(Aether.java:45)
at org.kie.scanner.Aether.getAether(Aether.java:55)
at org.kie.scanner.MavenRepository.getMavenRepository(MavenRepository.java:73)
at org.kie.scanner.ArtifactResolver.<init>(ArtifactResolver.java:36)
at org.kie.scanner.KieRepositoryScannerImpl.getArtifactResolver(KieRepositoryScannerImpl.java:87)
at org.kie.scanner.KieRepositoryScannerImpl.loadArtifact(KieRepositoryScannerImpl.java:97)
at org.kie.scanner.KieRepositoryScannerImpl.loadArtifact(KieRepositoryScannerImpl.java:93)
at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.loadKieModuleFromMavenRepo(KieRepositoryImpl.java:114)
at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.getKieModule(KieRepositoryImpl.java:100)
at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.getKieModule(KieRepositoryImpl.java:77)
at org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieContainer(KieServicesImpl.java:97)
at test.main(test.java:13)
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 com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: java.lang.ClassNotFoundException: org.sonatype.aether.connector.file.FileRepositoryConnectorFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 19 more
Process finished with exit code 1
我无法理解为什么这么简单的例子必须如此艰难地运行。