在eclipse 3.7上运行Java 8应用程序 [英] Run Java 8 application on eclipse 3.7

问题描述

我们希望将我们的eclipse RCP应用程序（基于插件）更新为Java 8.传统上它与Java7一起运行，目标平台 eclipse indigo 3.7 。我使用Luna（e4）构建了Java 8合规级别的应用程序。当我尝试使用eclipse indigo 3.7运行应用程序时 - 它会给我以下错误。我的问题是 - 是否可以在eclipse 3.7上运行Java8应用程序？

We want to update our eclipse RCP application (plugin based) to Java 8. Traditionally it is running with Java7 with target platform eclipse indigo 3.7. I have used Luna(e4) to build application with Java 8 compliance level. When I try to run the application with eclipse indigo 3.7 - it gives me following error. My question is - is it possible to run Java8 application on eclipse 3.7?

org.osgi.framework.BundleException: The bundle <packagename> could not be resolved. Reason: Missing Constraint: Bundle-RequiredExecutionEnvironment: JavaSE-1.8
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1327)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1311)
    at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:323)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:389)
    at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1131)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:438)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.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)

!ENTRY <packagename> 4 0 2014-12-30 11:24:03.857
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: The bundle  <packagename> could not be resolved. Reason: Missing Constraint: Bundle-RequiredExecutionEnvironment: JavaSE-1.8
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1327)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1311)
    at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:323)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:389)
    at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1131)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:438)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.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)

etc. (I get this error for every required plugin in the application)

推荐答案

对于所有插件，将所需的执行环境更改为JavaSE-1.7。

For all your plugins change the required execution environment to JavaSE-1.7.

您可以在MANIFEST.MF编辑器中执行此操作。执行环境在编辑器的概述选项卡上指定。同时单击更新类路径设置链接。

You can do this in the MANIFEST.MF editor. The Execution Environment is specified on the Overview tab of the editor. Also click the 'Update the classpath settings' link.

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