是否可以使用Kotlin为eclipse开发插件?我正在从事的项目使用Maven Tycho和OSGi。
为防止误解,这与Kotlin Eclipse Plugin无关,而是与使用Kotlin语言开发自定义插件有关。
我在pom.xml
中向Kotlin stdlib添加了一个依赖项,但这似乎还不够。
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
由于存在许多潜在的相关文件(MANIFEST.MF
,pom.xml
,...),我认为仅链接GitHub存储库https://github.com/Tornac/slr-toolkit/tree/kotlin/plugins/de.tudresden.slr.questionnaire可能会更容易。
只有plugins/de.tudresden.slr.questionnaire
中的代码是我的,我只关心将Kotlin代码添加到该特定插件中。我整合Kotlin的尝试可以在kotlin
分支上找到。可以在此提交中找到所有更改:https://github.com/Tornac/slr-toolkit/commit/18f8f6de3a35644ef1ae595024667f4bdd10b604
在编译期间,将简要显示以下错误:
ERROR: Cannot access built-in declaration 'kotlin.Unit'. Ensure that you have a dependency on the Kotlin standard library (5,14)
。
科特琳:
// file: KtTest
package de.tudresden.slr.questionnaire
class KtTest {
fun doStuff() {
System.out.println("hello world,this is kt!");
}
}
Java:
// trying to call KtTest's method from Java
new KtTest().doStuff();
调用doStuff()引起的Stacktrace:
java.lang.NoClassDefFoundError: de/tudresden/slr/questionnaire/KtTest
at de.tudresden.slr.questionnaire.QuestionnaireView$1.mouseDown(QuestionnaireView.java:78)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:192)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at de.tudresden.slr.app.Application.start(Application.java:20)
at org.eclipse.equinox.internal.app.eclipseAppHandle.run(eclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.eclipseAppLauncher.runApplication(eclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.eclipseAppLauncher.start(eclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.eclipseStarter.run(eclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.eclipseStarter.run(eclipseStarter.java:235)
at sun.reflect.NativeMethodaccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodaccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodaccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
Caused by: java.lang.ClassnotFoundException: de.tudresden.slr.questionnaire.KtTest cannot be found by de.tudresden.slr.questionnaire_0.2.6.qualifier
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:439)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:352)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:344)
at org.eclipse.osgi.internal.loader.ModuleclassLoader.loadClass(ModuleclassLoader.java:160)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 29 more