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在指定路径找不到工件 javax.jnlp:jnlp-api:jar:5.0

[英]Could not find artifact javax.jnlp:jnlp-api:jar:5.0 at specified path

我将 slick2d 依赖项添加到我的 pom.xml 文件中,但它以红色突出显示了一个错误,说Could not find artifact javax.jnlp:jnlp-api:jar:5.0 at specified path中:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

Even after running the test command in vscode it still gives a similar error: Could not resolve dependencies for project com.github.shia5347.universalelement:UniversalElement:jar:1.0-SNAPSHOT: Could not find artifact javax.jnlp:jnlp-api:jar:5.0 at specified path /usr/lib/jvm/java-8-openjdk/jre/lib/javaws.jar

这是我的 pom.xml 以备不时之需:

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.github.shia5347.universalelement</groupId>
  <artifactId>UniversalElement</artifactId>
  <version>1.0-SNAPSHOT</version>

  <name>UniversalElement</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>

<!-- https://mvnrepository.com/artifact/org.slick2d/slick2d-core -->
<dependency>
    <groupId>org.slick2d</groupId>
    <artifactId>slick2d-core</artifactId>
    <version>1.0.2</version>
</dependency>



  </dependencies>

  <build>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-jar-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
        <plugin>
          <artifactId>maven-site-plugin</artifactId>
          <version>3.7.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-project-info-reports-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

我正在使用 linux。

解决问题的简单方法是使用 Oracle JDK。

来自位于https://github.com/nguillaumin/slick2d-maven的 slick2d 站点:

  • Slick 2D 依赖于 javaws.jar 随 Oracle JDK 一起提供(它在公共 Maven 存储库中不可用)。 由于这个原因, pom.xml 文件引用了 javaws.jar 的本地文件系统路径。
  • 由于上述原因,它不适用于 OpenJDK(可以通过单独提供 javaws.jar 来解决)。 在某些 Linux 发行版上,您可以安装 Netx 并将系统路径更改为指向 netx.jar。 For example on Ubuntu the package to install is icedtea-netx-common and the jar is in /usr/share/icedtea-web/netx.jar

另请参阅此链接Openjdk 和 Java webstart

由于我不喜欢仅限于 Oracle JDK,因此我使用以下内容:

<dependency>
    <groupId>org.slick2d</groupId>
    <artifactId>slick2d-core</artifactId>
    <version>1.0.2</version>
    <exclusions>
        <exclusion>
            <groupId>javax.jnlp</groupId>
            <artifactId>jnlp-api</artifactId>
        </exclusion>
    </exclusions>
</dependency>

这将告诉 maven 跳过 jnlp-api 模块。 它还允许我将 AdoptOpenJDK 与 slick2d 一起使用。

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