既存のGroovyプロジェクトをビルドするMavenでエラーが発生しました

Question

次のgithubプロジェクトからブランチiswc13を再現したい：https://github.com/linqs/KnowledgeGraphIdentification/tree/master。 プロジェクトをローカルでクローンしてから、iswc13ブランチに切り替えます。 私の環境はUbuntu 16.04、Maven 3.3.9、Openjdkバージョン "1.8.0_121"です。 プロジェクトをコンパイルしようとすると、次のエラーが表示されるので、私は助けが必要です。

Downloading: http://repository.codehaus.org/org/codehaus/groovy/groovy-eclipse-batch/maven-metadata.xml 
Downloading: http://nexus.codehaus.org/snapshots/org/codehaus/groovy/groovy-eclipse-batch/maven-metadata.xml 
[WARNING] Could not transfer metadata org.codehaus.groovy:groovy-eclipse-batch/maven-metadata.xml from/to codehaus.org (http://repository.codehaus.org): repository.codehaus.org: Name or service not known 
[WARNING] Could not transfer metadata org.codehaus.groovy:groovy-eclipse-batch/maven-metadata.xml from/to codehaus-snapshots (http://nexus.codehaus.org/snapshots/): nexus.codehaus.org: Name or service not known 
[INFO] Using Groovy-Eclipse compiler to compile both Java and Groovy files 
[INFO] Compiling 1 source file to /home/caleb/workspace/KnowledgeGraphIdentification/nell_lazy/target/classes 
Annotation processing got disabled, since it requires a 1.6 compliant JVM 
---------- 
1. ERROR in /home/caleb/workspace/KnowledgeGraphIdentification/nell_lazy/src/main/java/edu/umd/cs/psl/kgi/RunKGI.groovy (at line 1) 
    package edu.umd.cs.psl.kgi; 
    ^
The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files 
---------- 
2. ERROR in /home/caleb/workspace/KnowledgeGraphIdentification/nell_lazy/src/main/java/edu/umd/cs/psl/kgi/RunKGI.groovy (at line 1) 
    package edu.umd.cs.psl.kgi; 
    ^
The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files 
---------- 
2 problems (2 errors)[INFO] ------------------------------------------------------------- 
[ERROR] COMPILATION ERROR : 
[INFO] ------------------------------------------------------------- 
[ERROR] Found 2 errors and 0 warnings. 
[INFO] 1error 
[INFO] ------------------------------------------------------------- 
[INFO] ------------------------------------------------------------------------ 
[INFO] BUILD FAILURE 
[INFO] ------------------------------------------------------------------------ 
[INFO] Total time: 1.569 s 
[INFO] Finished at: 2017-01-30T18:06:48+01:00 
[INFO] Final Memory: 14M/315M 
[INFO] ------------------------------------------------------------------------ 
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.1:compile (default-compile) on project kgi: Compilation failure 
[ERROR] Found 2 errors and 0 warnings. 

私はMVN実行-Xをコンパイルする私は、次があります。

[INFO] Using Groovy-Eclipse compiler to compile both Java and Groovy files 
[INFO] Compiling 1 source file to /home/caleb/workspace/KnowledgeGraphIdentification/nell_lazy/target/classes 
Annotation processing got disabled, since it requires a 1.6 compliant JVM 
---------- 
1. ERROR in /home/caleb/workspace/KnowledgeGraphIdentification/nell_lazy/src/main/java/edu/umd/cs/psl/kgi/RunKGI.groovy (at line 1) 
    package edu.umd.cs.psl.kgi; 
    ^
The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files 
---------- 
2. ERROR in /home/caleb/workspace/KnowledgeGraphIdentification/nell_lazy/src/main/java/edu/umd/cs/psl/kgi/RunKGI.groovy (at line 1) 
    package edu.umd.cs.psl.kgi; 
    ^
The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files 
---------- 
2 problems (2 errors)[INFO] ------------------------------------------------------------- 
[ERROR] COMPILATION ERROR : 
[INFO] ------------------------------------------------------------- 
[ERROR] Found 2 errors and 0 warnings. 
[INFO] 1error 
[INFO] ------------------------------------------------------------- 
[INFO] ------------------------------------------------------------------------ 
[INFO] BUILD FAILURE 
[INFO] ------------------------------------------------------------------------ 
[INFO] Total time: 1.499 s 
[INFO] Finished at: 2017-01-30T18:15:54+01:00 
[INFO] Final Memory: 13M/307M 
[INFO] ------------------------------------------------------------------------ 
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.1:compile (default-compile) on project kgi: Compilation failure 
[ERROR] Found 2 errors and 0 warnings. 
[ERROR] -> [Help 1] 
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.1:compile (default-compile) on project kgi: Compilation failure 
Found 2 errors and 0 warnings. 

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212) 
    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:116) 
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) 
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) 
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) 
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) 
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) 
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) 
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863) 
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288) 
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:199) 
    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: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.plugin.CompilationFailureException: Compilation failure 
Found 2 errors and 0 warnings. 

    at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:656) 
    at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128) 
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134) 
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207) 
    ... 20 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/MojoFailureException 

Answer 1

これは、Javaバージョンの問題でした。このプロジェクトは以前のバージョンのJavaで実行され、現在の設定、つまりOpenjdkバージョン "1.8.0_121"で作業していませんでした。 Java 1.8用に作られたpom.xmlfileを使用しなければなりませんでした。私はこれで現在のものを置き換え、それは正常にコンパイルされました。