在指定的路径上找不到javax.jnlp:jnlp-api:jar:5.0

Question

我将slick2d依赖项添加到我的pom.xml文件中，但它在文件顶部突出显示了一个红色错误，说Could not find artifact javax.jnlp:jnlp-api:jar:5.0 at specified path，它说:

<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">

即使在vscode中运行test命令，它仍然给出类似的错误: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，以防需要:

<?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>

我用的是linux。

Answer 1

因为我不喜欢仅限于Oracle JDK，所以我使用如下:

<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>

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

Answer 2

解决问题的简单方法是使用Oracle JDK。

来自slik2d网站https://github.com/nguillaumin/slick2d-maven:

• Slick 2D依赖于Oracle JDK附带的javaws.jar(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java .jar的本地文件系统路径。
• 由于上述原因，它不能与OpenJDK一起工作(可以通过单独提供javaws.jar来解决)。在某些Linux发行版上，可以安装Netx并将系统路径更改为指向Netx .jar。例如，在Ubuntu上，要安装的包是icedtea-netx-common，而jar位于/usr/share/icedtea-web/netx.jar

参见此链接Openjdk和Java webstart