使用Apache CXF在STS中创建SOAP服务报IWAB0014E异常如何解决

错误根因 #

该IWAB0014E错误本质是Eclipse JAX-WS插件调用CXF创建向导时，无法识别当前项目的Java源目录，导致srcDirectoryResource变量为空触发空指针异常。
完整异常栈如下：

Cannot invoke "org.eclipse.core.resources.IResource.getFullPath()" because "srcDirectoryResource" is null
java.lang.NullPointerException: Cannot invoke "org.eclipse.core.resources.IResource.getFullPath()" because "srcDirectoryResource" is null
at org.eclipse.jst.ws.jaxws.core.utils.JDTUtils.getJavaProjectSourceDirectoryPath(JDTUtils.java:159)
at org.eclipse.jst.ws.jaxws.core.utils.JDTUtils.getJavaProjectSourceDirectoryPath(JDTUtils.java:146)
at org.eclipse.jst.ws.internal.cxf.creation.core.commands.WSDL2JavaDefaultingCommand.execute(WSDL2JavaDefaultingCommand.java:111)
at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.runCommand(CommandFragmentEngine.java:421)
at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.visitTop(CommandFragmentEngine.java:361)
at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.moveForwardToNextStop(CommandFragmentEngine.java:256)
at org.eclipse.wst.command.internal.env.ui.widgets.SimpleCommandEngineManager$6.run(SimpleCommandEngineManager.java:296)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:436)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:352)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1033)
at org.eclipse.wst.command.internal.env.ui.widgets.SimpleCommandEngineManager.runForwardToNextStop(SimpleCommandEngineManager.java:266)
at org.eclipse.wst.command.internal.env.ui.widgets.WizardPageManager.runForwardToNextStop(WizardPageManager.java:93)
at org.eclipse.wst.command.internal.env.ui.widgets.WizardPageManager.getNextPage(WizardPageManager.java:156)
at org.eclipse.wst.command.internal.env.ui.widgets.SimpleWizardPage.getNextPage(SimpleWizardPage.java:138)
at org.eclipse.jface.wizard.WizardDialog.nextPressed(WizardDialog.java:910)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:468)
at org.eclipse.jface.dialogs.Dialog.lambda$0(Dialog.java:619)
at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4209)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1043)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4026)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3626)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:823)
at org.eclipse.jface.window.Window.open(Window.java:799)
at org.eclipse.wst.command.internal.env.ui.widgets.popup.DynamicPopupWizard.run(DynamicPopupWizard.java:132)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:239)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580)
at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4209)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1043)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4026)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3626)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1157)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
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:401)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1461)

解决步骤 #

• 检查项目源目录配置
  右键项目 → 选择Properties → 进入Java Build Path页面 → 切换到Source标签页，确认列表中存在src/main/java（Maven项目）或src（普通Java动态Web项目）的源目录条目，且无"missing"、已排除标记。如果没有对应源目录，点击Add Folder选择对应目录添加，应用保存后重启SOAP服务创建向导重试。
• 检查项目Facet配置
  同样在项目Properties页面，进入Project Facets页面，确认已勾选Dynamic Web Module（建议选4.0版本）、Java（版本与项目使用的JDK版本匹配，建议1.8或11）、JAX-WS三个选项，未勾选的话选中后应用保存，再重试创建流程。
• 修复版本兼容性问题
  当前使用的CXF 3.4.3仅支持Java EE规范，所有依赖包前缀为javax.*，而Tomcat 10默认是Jakarta EE 9+环境，包前缀已全部改为jakarta.*，就算解决当前空指针问题，后续部署也会出现类不兼容错误。建议将Tomcat版本降级到9.x版本，或升级CXF到4.0+版本适配Jakarta EE规范。
• 备选创建方案
  如果向导持续报错，可以直接使用CXF自带的wsdl2java命令行工具生成对应代码，手动导入到项目中使用，绕过Eclipse插件的适配问题。

内容的提问来源于stack exchange，提问作者Amisha Saha