安装 JDK 9 后无法启动 Spring Tool Suite

Question

我已经安装了 Spring Tool Suite（3.9.0 版）。它之前工作正常。安装 JDK 9 后，我无法启动 Spring Tool Suite。

虽然我可以在错误日志中看到以下内容：

java.lang.NoClassDefFoundError: javax/annotation/PreDestroy at org.eclipse.e4.core.internal.di.InjectorImpl.disposed(InjectorImpl.java:450) at org.eclipse.e4.core.internal.di.Requestor.disposed(Requestor.java:156) at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:78) at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:111) at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.handleInvalid(TrackableComputationExt.java:74) at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:178) at org.eclipse.e4.core.internal.contexts.osgi.EclipseContextOSGi.dispose(EclipseContextOSGi.java:99) at org.eclipse.e4.core.internal.contexts.osgi.EclipseContextOSGi.bundleChanged(EclipseContextOSGi.java:141) at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:908) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:213) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:120) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:112) at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:168) at org.eclipse.osgi.container.Module.publishEvent(Module.java:476) at org.eclipse.osgi.container.Module.doStop(Module.java:634) at org.eclipse.osgi.container.Module.stop(Module.java:498) at org.eclipse.osgi.container.SystemModule.stop(SystemModule.java:202) at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule.run(EquinoxBundle.java:165) at java.base/java.lang.Thread.run(Thread.java:844) Caused by: java.lang.ClassNotFoundException: javax.annotation.PreDestroy cannot be found by org.eclipse.e4.core.di_1.6.100.v20170421-1418 at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:433) 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:496)

问题真的是因为 JDK 9 吗？请指出正确的方向来解决问题。

谢谢。

Answer 1

是的，这是由于 Java 9。Eclipse 中可能会有错误修复（参见 https://bugs.eclipse.org/bugs/show_bug.cgi?id=525583) but for now you can use a workaround: add --add-modules=ALL-SYSTEM to the launch configuration in eclipse.ini. For a complete example see https://bugs.eclipse.org/bugs/show_bug.cgi?id=493761。

Answer 2

在Java 9 中，javax.annotation 包在一个模块中，在Java 9 运行 时间默认不可见。解决方法确实是告诉 Java 运行时间显式加载该模块。

这意味着许多平台如果想在 Java 9 运行 时间之后 运行 可能必须更新其启动配置。或者，他们将不得不 "modularize" 他们的代码并在他们的模块中导入 javax.annotation 包。