如何在 Eclipse 插件中使用 Java11(Java10)?

2022-01-16 00:00:00 eclipse-plugin eclipse java-10

如果我在我的 Eclipse 插件中指定 JavaSE-10 作为最小执行环境:

将插件作为 Eclipse 应用程序启动时出现以下错误:

org.osgi.framework.BundleException:无法解析模块:org.treez.core [597]未解决的需求:Require-Capability: osgi.ee;filter:="(&(osgi.ee=JavaSE)(version=10))"未解决的需求:Require-Bundle: org.treez.javafxd3；可见性:=再出口"->捆绑符号名称:org.treez.javafxd3；捆绑版本="1.0.0.qualifier";单例:=真"org.treez.javafxd3 [586]未解决的需求:Require-Capability: osgi.ee;filter:="(&(osgi.ee=JavaSE)(version=10))"在 org.eclipse.osgi.container.Module.start(Module.java:444)在 org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1634)在 org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1613)在 org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1585)在 org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1528)在 org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)在 org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)在 org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)

我查过了

Java10 在已安装的 JRE 下备受推崇
10 被选为合规级别

我使用 Oxygen.3a Release (4.7.3a) Build id: 20180405-1200

=>这是 Eclipse Equinox 中的错误吗?

=>我还可以检查什么来解决这个问题?

如果我从最低执行环境设置中删除 JavaSE-10，我就能够启动 Eclipse 应用程序并且插件似乎工作正常.

当我导出插件时，我收到以下警告:

# 25.04.18, 12:25:40 MESZ# Eclipse Compiler for Java(TM) v20180330-0919, 3.13.102, 版权所有 IBM Corp 2000, 2015.保留所有权利.合规级别 9 及以上不支持选项 -bootclasspath

当我从我的更新页面安装插件后尝试使用它时，我得到一个 ClassNotFoundException:

<代码>...原因:java.lang.ClassNotFoundException: org.treez.views.views_1.0.0.201804191641 找不到 org.treez.views.tree.TreeViewPart在 org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:484)在 org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)在 org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)在 org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)在 java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)在 org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:564)在 org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)... 114 更多

如果我使用 Java8，一切正常.

相关问题:

(因此，如果未应用该选项，我假设在导出向导的编译步骤中出现问题.)

我使用 Java 11.0.1 和 Eclipse SimRel 2018-09(加上 Java11 支持插件)

If I specify JavaSE-10 as minimum execution environment in my Eclipse plugin:

I get following errors when starting my plugin as Eclipse Application:

org.osgi.framework.BundleException: Could not resolve module: org.treez.core [597]
  Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=10))"
  Unresolved requirement: Require-Bundle: org.treez.javafxd3; visibility:="reexport"
    -> Bundle-SymbolicName: org.treez.javafxd3; bundle-version="1.0.0.qualifier"; singleton:="true"
       org.treez.javafxd3 [586]
         Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=10))"

    at org.eclipse.osgi.container.Module.start(Module.java:444)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1634)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1613)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1585)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1528)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)

I checked that

Java10 is reverenced under Installed JREs
10 is selected as compliance level

I use Oxygen.3a Release (4.7.3a) Build id: 20180405-1200

=>Is this a bug in eclipse equinox?

=>What else can I check to resolve this issue?

If I remove JavaSE-10 from the minimum execution environment settings I am able to start the Eclipse Application and the plugin seems to work fine.

When I export the plugin I get following warning:

# 25.04.18, 12:25:40 MESZ
# Eclipse Compiler for Java(TM) v20180330-0919, 3.13.102, Copyright IBM Corp 2000, 2015. All rights reserved.
option -bootclasspath not supported at compliance level 9 and above

When I try to use the plugin after installing it from my update page, I get a ClassNotFoundException:

...
Caused by: java.lang.ClassNotFoundException: org.treez.views.tree.TreeViewPart cannot be found by org.treez.views_1.0.0.201804191641
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:484)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
    at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
    at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:564)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
    ... 114 more

If I use Java8 everything works fine.