ThinkingRock JDK1.6 JAXB

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如果在 JDK1.6 下面运行 ThinkingRock，那么很有可能会发生例外。

1. java.lang.LinkageError: JAXB 2.0 API is being loaded from the bootstrap classloader, but this RI (from nbjcl:file:/D:/Program%20Files/tr/tr/modules/ext/jaxb-impl.jar!/com/sun/xml/bind/v2/model/impl/ModelBuilder.class) needs 2.1 API. Use the endorsed directory mechanism to place jaxb-api.jar in the bootstrap classloader. (See http://java.sun.com/j2se/1.5.0/docs/guide/standards/)
2. at com.sun.xml.bind.v2.model.impl.ModelBuilder.(ModelBuilder.java:173)
3. at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:422)
4. at com.sun.xml.bind.v2.runtime.JAXBContextImpl.(JAXBContextImpl.java:286)
5. at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:139)
6. at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:117)
7. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
8. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
9. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
10. at java.lang.reflect.Method.invoke(Method.java:597)
11. at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:210)
12. at javax.xml.bind.ContextFinder.find(ContextFinder.java:368)
13. at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574)
14. at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:522)
15. at tr.view.actions.screens.dao.ScreensDAOJAXB.persist(ScreensDAOJAXB.java:129)
16. at tr.view.actions.Installer.close(Installer.java:42)
17. [catch] at org.netbeans.core.startup.NbInstaller.close(NbInstaller.java:678)
18. at org.netbeans.ModuleManager.shutDown(ModuleManager.java:1603)
19. at org.netbeans.core.startup.ModuleSystem.shutDown(ModuleSystem.java:291)
20. at org.netbeans.core.NbTopManager.doExit(NbTopManager.java:389)
21. at org.netbeans.core.NbTopManager.exit(NbTopManager.java:345)
22. at org.netbeans.core.NbTopManager$NbLifecycleManager.exit(NbTopManager.java:439)
23. at org.netbeans.modules.autoupdate.services.InstallSupportImpl.doRestart(InstallSupportImpl.java:462)
24. at org.netbeans.api.autoupdate.InstallSupport.doRestart(InstallSupport.java:158)
25. at org.netbeans.modules.autoupdate.ui.wizards.InstallStep$12.run(InstallStep.java:555)
26. at org.netbeans.modules.autoupdate.ui.wizards.InstallStep$13.run(InstallStep.java:574)
27. at org.netbeans.modules.autoupdate.ui.wizards.RestartNeededNotification$UpdatesFlasher.onMouseClick(RestartNeededNotification.java:99)
28. at org.netbeans.modules.autoupdate.ui.actions.FlashingIcon.mouseClicked(FlashingIcon.java:180)
29. at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
30. at java.awt.Component.processMouseEvent(Component.java:6041)
31. at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
32. at java.awt.Component.processEvent(Component.java:5803)
33. at java.awt.Container.processEvent(Container.java:2058)
34. at java.awt.Component.dispatchEventImpl(Component.java:4410)
35. at java.awt.Container.dispatchEventImpl(Container.java:2116)
36. at java.awt.Component.dispatchEvent(Component.java:4240)
37. at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
38. at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3995)
39. at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
40. at java.awt.Container.dispatchEventImpl(Container.java:2102)
41. at java.awt.Window.dispatchEventImpl(Window.java:2429)
42. at java.awt.Component.dispatchEvent(Component.java:4240)
43. at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
44. at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
45. at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
46. at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
47. at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
48. at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
49. at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
50. at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

这是因为 JDK1.6 自带了 JAXB2.0 的实现，因此使用 JAXB2.1 的时候会发生冲突。注意到 tr 安装目录下已经设立了 tr/modules/ext/endorsed 目录，下面有 jaxb-api.jar，所以只要把 ext 目录下 4 个以 jaxb 开头的 jar 文件重命名一下就好了。

追究细节：Migrating JAXB 2.0 applications to JavaSE 6