Maven的碼頭，插件，當我改變了JRE版本1.8到1.6

Question

OS無法解析項目依賴：openSUSE的飛躍4.2
IDE：Eclipse的火星 JDK安裝：打開JDK 1.8 &的Oracle JDK 1.6

我不得不爲最近已有的系統添加一些新功能。我的環境如上所述。
該系統有5個獨立的項目，它們的根文件夾並排設置，並使用maven來管理構建週期。

部署環境的JRE版本是Oracle JDK1.6，因此我必須在開發環境中將其降級到新功能已經實現併成功通過JDK1.8進行測試之後，儘管五個文件夾的結構項目沒有按照我認爲的maven推薦安排。

當我改變安裝了JDK 1.8〜1.6，試圖運行與Maven的碼頭 - 插件系統（碼頭：運行），我得到了以下錯誤的輸出：

... 
[DEBUG]  ======================================================================= 
[INFO] 
[INFO] >>> maven-jetty-plugin:6.1.25:run (default-cli) > test-compile @  yingfan-cpm-webapp >>> 
[DEBUG] Could not find metadata  yingfan:yingfan-cpm-core:0.0.1-SNAPSHOT/maven-metadata.xml in local  (/home/lfree/.m2.3.2.5/repository) 
[DEBUG] Could not find metadata  yingfan:yingfan-cpm-core:0.0.1-SNAPSHOT/maven-metadata.xml in local  (/home/lfree/.m2.3.2.5/repository) 
[WARNING] The POM for yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT is missing, no  dependency information available 
[DEBUG] Dependency collection stats: {ConflictMarker.analyzeTime=1,  ConflictMarker.markTime=0, ConflictMarker.nodeCount=12, ConflictIdSorter.graphTime=0,  ConflictIdSorter.topsortTime=0, ConflictIdSorter.conflictIdCount=10,  ConflictIdSorter.conflictIdCycleCount=0, ConflictResolver.totalTime=3,  ConflictResolver.conflictItemCount=11, DefaultDependencyCollector.collectTime=212,  DefaultDependencyCollector.transformTime=5} 
[DEBUG] yingfan:yingfan-cpm-webapp:war:0.0.1-SNAPSHOT 
[DEBUG] yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT:compile 
[DEBUG] com.lowagie:itext:jar:2.1.7:compile 
[DEBUG]  bouncycastle:bcmail-jdk14:jar:138:compile 
[DEBUG]  bouncycastle:bcprov-jdk14:jar:138:compile 
[DEBUG]  org.bouncycastle:bctsp-jdk14:jar:1.38:compile 
[DEBUG]   org.bouncycastle:bcprov-jdk14:jar:1.38:compile 
[DEBUG]   org.bouncycastle:bcmail-jdk14:jar:1.38:compile 
[DEBUG] org.json:json:jar:20160212:compile 
[DEBUG] javax.servlet:jstl:jar:1.2:compile 
[DEBUG] ant:ant:jar:1.6.5:compile 
[INFO] ------------------------------------------------------------------------ 
[INFO] BUILD FAILURE 
[INFO] ------------------------------------------------------------------------ 
[INFO] Total time: 4.121 s 
[INFO] Finished at: 2016-04-15T18:52:09+08:00 
[INFO] Final Memory: 10M/118M 
[INFO] ------------------------------------------------------------------------ 
[ERROR] Failed to execute goal on project yingfan-cpm-webapp: Could not resolve  dependencies for project yingfan:yingfan-cpm-webapp:war:0.0.1-SNAPSHOT: Could not find  artifact yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT -> [Help 1] 
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on  project yingfan-cpm-webapp: Could not resolve dependencies for project  yingfan:yingfan-cpm-webapp:war:0.0.1-SNAPSHOT: Could not find artifact  yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT 
    at  org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(Life cycleDependencyResolver.java:220) 
    at  org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDepend encies(LifecycleDependencyResolver.java:127) 
    at  org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoE xecutor.java:257) 
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:200) 
    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.MojoExecutor.executeForkedExecutions(MojoExecuto r.java:364) 
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:198) 
    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(LifecycleMod uleBuilder.java:116) 
    at  org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleMod uleBuilder.java:80) 
    at  org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.bui ld(SingleThreadedBuilder.java:51) 
    at  org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:1 20) 
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:355) 
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155) 
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584) 
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:216) 
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:160) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25 ) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    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: org.apache.maven.project.DependencyResolutionException: Could not resolve  dependencies for project yingfan:yingfan-cpm-webapp:war:0.0.1-SNAPSHOT: Could not find  artifact yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT 
    at  org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDe pendenciesResolver.java:211) 
    at  org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(Life cycleDependencyResolver.java:195) 
    ... 26 more 
Caused by: org.eclipse.aether.resolution.DependencyResolutionException: Could not find  artifact yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT 
    at  org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(Default RepositorySystem.java:384) 
    at  org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDe pendenciesResolver.java:205) 
    ... 27 more 
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find  artifact yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT 
    at  org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactReso lver.java:444) 
    at  org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArt ifactResolver.java:246) 
    at  org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(Default RepositorySystem.java:367) 
    ... 28 more 
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find  artifact yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT 
    at  org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactReso lver.java:434) 
    ... 30 more 
[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/DependencyResolutionException 

隨着JDK 1.8中，輸出是這樣的：

</configuration> 
[DEBUG] ======================================================================= 
[INFO] 
[INFO] >>> maven-jetty-plugin:6.1.25:run (default-cli) > test-compile @  yingfan-cpm-webapp >>> 
[DEBUG] Dependency collection stats: {ConflictMarker.analyzeTime=1,  ConflictMarker.markTime=0, ConflictMarker.nodeCount=156, ConflictIdSorter.graphTime=1,  ConflictIdSorter.topsortTime=0, ConflictIdSorter.conflictIdCount=76,  ConflictIdSorter.conflictIdCycleCount=0, ConflictResolver.totalTime=10,  ConflictResolver.conflictItemCount=138, DefaultDependencyCollector.collectTime=258,  DefaultDependencyCollector.transformTime=14} 
[DEBUG] yingfan:yingfan-cpm-webapp:war:0.0.1-SNAPSHOT 
[DEBUG] yingfan:yingfan-cpm-core:jar:0.0.1-SNAPSHOT:compile 
[DEBUG]  org.springframework:spring-core:jar:3.2.5.RELEASE:compile 
[DEBUG]  org.springframework:spring-beans:jar:3.2.5.RELEASE:compile 
[DEBUG]  org.springframework:spring-context:jar:3.2.5.RELEASE:compile 
[DEBUG]   org.springframework:spring-aop:jar:3.2.5.RELEASE:compile 
[DEBUG]   org.springframework:spring-expression:jar:3.2.5.RELEASE:compile 
[DEBUG]  org.springframework:spring-web:jar:3.2.5.RELEASE:compile 
[DEBUG]   aopalliance:aopalliance:jar:1.0:compile 
[DEBUG]  org.springframework:spring-tx:jar:3.2.5.RELEASE:compile 
[DEBUG]  org.springframework:spring-orm:jar:3.2.5.RELEASE:compile 
[DEBUG]  org.springframework:spring-context-support:jar:3.2.5.RELEASE:compile 

王英凡-CPM-web應用和王英凡-CPM核心是兩個五個項目所有進口到我的Eclipse工作區中。
爲什麼使用JDK1.6，yingfan-cpm-web項目對yingfan-cpm-core項目的依賴無法正確識別？

P.S. JDK版本是這兩種情況唯一的區別。

Answer 1

[INFO] ----------------------------------------- ------------------------------- [INFO] BUILD FAILURE [INFO] --------- -------------------------------------------------- -------------

如果您可以提供BUILD FAILURE錯誤的詳細信息，那就更好了。

這可能是因爲您的某些類無法編譯時改變Java版本從8到6