我正在尝试在我的Windows计算机上安装dpsace。我没有代理，我的网络连接足够快，我收到错误：
BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7.853 s
[INFO] Finished at: 2018-04-18T07:36:04+01:00
[INFO] Final Memory: 14M/50M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce (enforce-java) on project modules: Execution enforce-java of goal org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce failed: An API incompatibility was encountered while executing org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce: java.lang.ExceptionInInitializerError: null
[ERROR] -----------------------------------------------------
[ERROR] realm = plugin>org.apache.maven.plugins:maven-enforcer-plugin:1.4.1
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/plugins/maven-enforcer-plugin/1.4.1/maven-enforcer-plugin-1.4.1.jar
[ERROR] urls[1] = file:/C:/Users/Joker/.m2/repository/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar
[ERROR] urls[2] = file:/C:/Users/Joker/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.11/plexus-interpolation-1.11.jar
[ERROR] urls[3] = file:/C:/Users/Joker/.m2/repository/org/slf4j/slf4j-jdk14/1.5.6/slf4j-jdk14-1.5.6.jar
[ERROR] urls[4] = file:/C:/Users/Joker/.m2/repository/org/slf4j/jcl-over-slf4j/1.5.6/jcl-over-slf4j-1.5.6.jar
[ERROR] urls[5] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.2.1/maven-reporting-api-2.2.1.jar
[ERROR] urls[6] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.1/doxia-sink-api-1.1.jar
[ERROR] urls[7] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar
[ERROR] urls[8] = file:/C:/Users/Joker/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar
[ERROR] urls[9] = file:/C:/Users/Joker/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
[ERROR] urls[10] = file:/C:/Users/Joker/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
[ERROR] urls[11] = file:/C:/Users/Joker/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
[ERROR] urls[12] = file:/C:/Users/Joker/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.22/plexus-utils-3.0.22.jar
[ERROR] urls[13] = file:/C:/Users/Joker/.m2/repository/commons-lang/commons-lang/2.3/commons-lang-2.3.jar
[ERROR] urls[14] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/enforcer/enforcer-api/1.4.1/enforcer-api-1.4.1.jar
[ERROR] urls[15] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/enforcer/enforcer-rules/1.4.1/enforcer-rules-1.4.1.jar
[ERROR] urls[16] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/shared/maven-common-artifact-filters/1.4/maven-common-artifact-filters-1.4.jar
[ERROR] urls[17] = file:/C:/Users/Joker/.m2/repository/org/beanshell/bsh/2.0b4/bsh-2.0b4.jar
[ERROR] urls[18] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/shared/maven-dependency-tree/2.2/maven-dependency-tree-2.2.jar
[ERROR] urls[19] = file:/C:/Users/Joker/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
[ERROR] urls[20] = file:/C:/Users/Joker/.m2/repository/org/eclipse/aether/aether-util/0.9.0.M2/aether-util-0.9.0.M2.jar
[ERROR] urls[21] = file:/C:/Users/Joker/.m2/repository/org/codehaus/plexus/plexus-i18n/1.0-beta-6/plexus-i18n-1.0-beta-6.jar
[ERROR] urls[22] = file:/C:/Users/Joker/.m2/repository/org/apache/maven/plugin-testing/maven-plugin-testing-harness/1.3/maven-plugin-testing-harness-1.3.jar
[ERROR] urls[23] = file:/C:/Users/Joker/.m2/repository/org/codehaus/plexus/plexus-archiver/2.2/plexus-archiver-2.2.jar
[ERROR] urls[24] = file:/C:/Users/Joker/.m2/repository/org/codehaus/plexus/plexus-io/2.0.4/plexus-io-2.0.4.jar
[ERROR] urls[25] = file:/C:/Users/Joker/.m2/repository/junit/junit/4.11/junit-4.11.jar
[ERROR] urls[26] = file:/C:/Users/Joker/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]]
[ERROR]
[ERROR] -----------------------------------------------------: begin 0, end 3, length 2
[ERROR] -> [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.
[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/PluginContainerException
答案 0 :(得分：1)
看起来您正在尝试在具有JDK9的计算机上设置DSpace 6.x（或者更确切地说是JDK＆gt; = 9）。
DSpace 6.x与Java 9不兼容。请安装JDK8。
在DSpace支持论坛上的必备软件
...
Java JDK 7或8（OpenJDK或Oracle JDK）
Here's an older thread，它提到了一个不同的问题，但也与DSpace缺乏对JDK9的支持有关。