Tycho 切换到 Java-11 后无法解析 javax.rmi

Question

我正试图将我们的遗留多模块项目切换到Java-11，但tycho抱怨缺少依赖项在我的pom文件中，我添加了JDK版本为11。这是pom 的一部分

...
<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<jdk-version>11</jdk-version>
<!-- Plugins tycho version -->
<tycho.version>1.7.0</tycho.version>
...
</properties>
<build>
...
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-compiler-plugin</artifactId>
<version>${tycho.version}</version>
<configuration>
<source>${jdk-version}</source>
<target>${jdk-version}</target>
</configuration>
</plugin>
...
</build>

这是我的META-INF/MANIFEST.MF文件

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Meta-Persistence: META-INF/openjpa_persistence_product.xml
Bundle-Name: JPA
Bundle-SymbolicName: com.XXX.jpa
Bundle-Version: 2.1.2
Bundle-Vendor: XXX
Bundle-RequiredExecutionEnvironment: JavaSE-11
Eclipse-ExtensibleAPI: true
Import-Package: com.XXX.config,
com.XXX.core,
com.XXX.core.util.logging,
com.XXX.sql,
javax.persistence,
javax.persistence.criteria,
javax.persistence.metamodel,
org.apache.openjpa.persistence,
org.apache.openjpa.util,
org.osgi.framework,
org.osgi.service.component,
org.osgi.service.jdbc,
org.osgi.service.jndi,
org.osgi.service.jpa,
org.slf4j
Export-Package: com.XXX.jpa,
com.XXX.jpa.concurrent,
com.XXX.jpa.util
Service-Component: OSGI-INF/*.xml
Bundle-ActivationPolicy: lazy

在执行mvn干净安装后，我收到了

ERROR] Cannot resolve project dependencies:
[ERROR]   Software being installed: com.XXX.jpa 2.1.2
[ERROR]   Missing requirement: org.apache.openjpa 3.0.0 requires 'java.package; javax.rmi 0.0.0' but it could not be found
[ERROR]   Cannot satisfy dependency: com.XXX.jpa 2.1.2 depends on: java.package; org.apache.openjpa.persistence 0.0.0

我尝试了

1. 在MANIFEST.MF中为org.apache.openjpa.persistence、org.apache.oopenjpa.util添加版本
2. 将javax.rmi添加到MANIFEST.MF的Import Package部分

但结果总是一样的-tycho对javax.rmi包的抱怨

更新嗨@howlger！谢谢你的帮助，但现在我收到了另一个问题

1. 我为javax.rmi创建bunlde

<parent>
<groupId>com.XXX</groupId>
<artifactId>bundle.platform</artifactId>
<version>2.1.2</version>
<relativePath>../pom.xml</relativePath>
</parent>

<!-- This bundle was added because in Java-11 javax.rmi package was removed from the standard library -->
<groupId>com.XXX</groupId>
<artifactId>com.XXX.javax.rmi</artifactId>
<version>1.0.6.Final</version>
<packaging>bundle</packaging>
<name>Java RMI API Bundle</name>

<dependencies>
<dependency>
<groupId>org.jboss.spec.javax.rmi</groupId>
<artifactId>jboss-rmi-api_1.0_spec</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<extensions>true</extensions>
<configuration>
<instructions>
<Export-Package>
*;version="${project.version}"
</Export-Package>
<Import-Package>
*
</Import-Package>
<Embed-Dependency>*;scope=compile|runtime;inline=true</Embed-Dependency>
<Bundle-SymbolicName>
${project.artifactId}
</Bundle-SymbolicName>
</instructions>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-deploy-plugin</artifactId>
</plugin>
</plugins>
</build>

并部署到我们的artifactory，但不幸的是，无法将此捆绑包添加到p2功能中

我将其作为一个依赖项添加到主pom文件中，该文件将p2 repo创建为

<dependencies>
<!-- com.XXX.javax.rmi -->
<dependency>
<groupId>org.jboss.spec.javax.rmi</groupId>
<artifactId>jboss-rmi-api_1.0_spec</artifactId>
<version>${javax.rmi.version}</version>
</dependency>    
<dependency>
<groupId>org.jboss.spec.javax.rmi</groupId>
<artifactId>jboss-rmi-api_1.0_spec</artifactId>
<version>${javax.rmi.version}</version>
<classifier>sources</classifier>
</dependency>
</dependencies> 

但当我试图将该捆绑包作为插件添加到平台功能中时

<plugin
id="com.XXX.javax.rmi"
download-size="0"
install-size="0"
version="0.0.0"
unpack="false"/>

我收到：

[ERROR] Cannot resolve project dependencies:
[ERROR]   Software being installed: com.XXX.repository 2.1.2
[ERROR]   Missing requirement: com.XXX.bundle.platform.feature.feature.group 2.1.2 requires 'org.eclipse.equinox.p2.iu; com.navteq.javax.rmi 0.0.0' but it could not be found
[ERROR]   Cannot satisfy dependency: com.navteq.phoenix.repository 2.1.2 depends on: org.eclipse.equinox.p2.iu; com.navteq.phoenix.bundle.platform.feature.feature.group [2.1.2,2.1.3)
[ERROR]

我做错了什么？

更新2此问题存在2个主要问题

1. 创建p2 repo的主pom文件中的依赖项不正确-它应该与创建bandle的pom中的groupId、artifactId和版本相同

<dependencies>
<!-- com.XXX.javax.rmi -->
<dependency>
<groupId>com.XXX</groupId>
<artifactId>com.XXX.javax.rmi</artifactId>
<version>1.0.6.Final</version>
</dependency>
</dependencies>

2. sun.refel部分的导入应添加到创建bundle的pom文件中

<configuration>
<instructions>
<Export-Package>
*;version="${project.version}"
</Export-Package>
<Import-Package>
sun.reflect;resolution:=optional
</Import-Package>
<Embed-Dependency>*;scope=compile|runtime;inline=true</Embed-Dependency>
<Bundle-SymbolicName>
${project.artifactId}
</Bundle-SymbolicName>
</instructions>
</configuration>

Answer 1

javax.rmi包一直包含在系统库中(在模块java.corba中的Java 9和10中(，直到它在Java 11被JEP 320删除。

对于Java 11或更高版本，您需要将包含程序包javax.rmi的插件/捆绑包添加到您的目标平台，因为它是您拥有的org.apache.openjpa插件/捆绑程序所必需的。或者可能有一个更新版本的org.apache.openjpa包含javax.rmi包，或者不再需要它。