Eclipse rcp eclipse RCP导出操作的Webstart问题

我有eclipse示例eclipse RCP应用程序。我正在尝试将其导出为WebStart。但它在导出功能项目时会给出以下错误消息

D:\apps\eclipse-jee-kepler-SR2-win32-x86_64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\assemble.org.eclipse.pde.container.feature.p2.xml:43: The following error occurred while executing this line:
D:\apps\eclipse-jee-kepler-SR2-win32-x86_64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\assemble.org.eclipse.pde.container.feature.p2.xml:64: The jarsigner could not be found. Make sure to run with the build with a JDK.
    at org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:551)
    at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:444)
    at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
    at sun.reflect.GeneratedMethodAccessor123.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    at org.apache.tools.ant.Task.perform(Task.java:348)
    at org.apache.tools.ant.Target.execute(Target.java:392)
    at org.apache.tools.ant.Target.performTasks(Target.java:413)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
    at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
    at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
    at org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:672)
    at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:498)
    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.ant.core.AntRunner.run(AntRunner.java:378)
    at org.eclipse.pde.internal.core.exports.FeatureExportOperation.runScript(FeatureExportOperation.java:422)
    at org.eclipse.pde.internal.core.exports.FeatureExportOperation.doExport(FeatureExportOperation.java:267)
    at org.eclipse.pde.internal.core.exports.FeatureExportOperation.doExport(FeatureExportOperation.java:223)
    at org.eclipse.pde.internal.core.exports.FeatureExportOperation.run(FeatureExportOperation.java:100)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: D:\apps\eclipse-jee-kepler-SR2-win32-x86_64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\assemble.org.eclipse.pde.container.feature.p2.xml:64: The jarsigner could not be found. Make sure to run with the build with a JDK.
    at org.eclipse.equinox.internal.p2.jarprocessor.ant.AntSignCommand.execute(AntSignCommand.java:54)
    at org.eclipse.equinox.internal.p2.jarprocessor.ant.AntSignCommand.postProcess(AntSignCommand.java:36)
    at org.eclipse.internal.provisional.equinox.p2.jarprocessor.JarProcessor.postProcess(JarProcessor.java:252)
    at org.eclipse.internal.provisional.equinox.p2.jarprocessor.JarProcessor.processJar(JarProcessor.java:345)
    at org.eclipse.internal.provisional.equinox.p2.jarprocessor.JarProcessorExecutor.process(JarProcessorExecutor.java:173)
    at org.eclipse.internal.provisional.equinox.p2.jarprocessor.JarProcessorExecutor.processDirectory(JarProcessorExecutor.java:195)
    at org.eclipse.equinox.internal.p2.jarprocessor.ant.AntBasedProcessorExecutor.processDirectory(AntBasedProcessorExecutor.java:60)
    at org.eclipse.internal.provisional.equinox.p2.jarprocessor.JarProcessorExecutor.process(JarProcessorExecutor.java:155)
    at org.eclipse.internal.provisional.equinox.p2.jarprocessor.JarProcessorExecutor.runJarProcessor(JarProcessorExecutor.java:82)
    at org.eclipse.equinox.internal.p2.jarprocessor.ant.JarProcessorTask.execute(JarProcessorTask.java:109)
    at org.eclipse.equinox.p2.internal.repository.tools.tasks.ProcessRepoTask.execute(ProcessRepoTask.java:87)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
    at sun.reflect.GeneratedMethodAccessor123.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    at org.apache.tools.ant.Task.perform(Task.java:348)
    at org.apache.tools.ant.Target.execute(Target.java:392)
    at org.apache.tools.ant.Target.performTasks(Target.java:413)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
    at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
    at org.eclipse.ant.internal.core.ant.EclipseSingleCheckExecutor.executeTargets(EclipseSingleCheckExecutor.java:30)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:442)
    ... 26 more
Caused by: Execute failed: java.io.IOException: Cannot run program "jarsigner.exe" (in directory "D:\apps\eclipse-jee-kepler-SR2-win32-x86_64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature"): CreateProcess error=2, The system cannot find the file specified
    at org.apache.tools.ant.taskdefs.ExecTask.runExec(ExecTask.java:675)
    at org.apache.tools.ant.taskdefs.ExecTask.execute(ExecTask.java:498)
    at org.apache.tools.ant.taskdefs.SignJar.signOneJar(SignJar.java:490)
    at org.apache.tools.ant.taskdefs.SignJar.execute(SignJar.java:405)
    at org.eclipse.equinox.internal.p2.jarprocessor.ant.AntSignCommand.execute(AntSignCommand.java:51)
    ... 49 more
Caused by: java.io.IOException: Cannot run program "jarsigner.exe" (in directory "D:\apps\eclipse-jee-kepler-SR2-win32-x86_64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature"): CreateProcess error=2, The system cannot find the file specified
    at java.lang.ProcessBuilder.start(Unknown Source)
    at java.lang.Runtime.exec(Unknown Source)
    at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:862)
    at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:481)
    at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:495)
    at org.apache.tools.ant.taskdefs.ExecTask.runExecute(ExecTask.java:631)
    at org.apache.tools.ant.taskdefs.ExecTask.runExec(ExecTask.java:672)
    ... 53 more
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(Unknown Source)
    at java.lang.ProcessImpl.start(Unknown Source)
    ... 60 more

D:\apps\eclipse-jee-kepler-SR2-win32-x86\u 64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\assembly.org.eclipse.pde.container.feature.p2.xml:43:执行此行时发生以下错误：
D:\apps\eclipse-jee-kepler-SR2-win32-x86\u 64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\assembly.org.eclipse.pde.container.feature.p2.xml:64：找不到jarsigner。确保使用JDK运行构建。
位于org.apache.tools.ant.ProjectHelper.addLocationToBuildException（ProjectHelper.java:551）
位于org.apache.tools.ant.taskdefs.ant.execute（ant.java:444）
位于org.apache.tools.ant.taskdefs.CallTarget.execute（CallTarget.java:105）
位于org.apache.tools.ant.UnknowneElement.execute（unknowneElement.java:291）
位于sun.reflect.GeneratedMethodAccessor123.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke处（未知源）
位于java.lang.reflect.Method.invoke（未知源）
位于org.apache.tools.ant.dispatch.DispatchUtils.execute（DispatchUtils.java:106）
位于org.apache.tools.ant.Task.perform（Task.java:348）
位于org.apache.tools.ant.Target.execute（Target.java:392）
位于org.apache.tools.ant.Target.performTasks（Target.java:413）
位于org.apache.tools.ant.Project.executeSortedTargets（Project.java:1399）
位于org.apache.tools.ant.Project.executeTarget（Project.java:1368）
位于org.apache.tools.ant.helper.DefaultExecutor.executeTargets（DefaultExecutor.java:41）
位于org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.executeTargets（EclipseDefaultExecutor.java:32）
位于org.apache.tools.ant.Project.executeTargets（Project.java:1251）
位于org.eclipse.ant.internal.core.ant.InternalAntRunner.run（InternalAntRunner.java:672）
位于org.eclipse.ant.internal.core.ant.InternalAntRunner.run（InternalAntRunner.java:498）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke处（未知源）
位于java.lang.reflect.Method.invoke（未知源）
位于org.eclipse.ant.core.AntRunner.run（AntRunner.java:378）
位于org.eclipse.pde.internal.core.exports.FeatureExportOperation.runScript（FeatureExportOperation.java:422）
位于org.eclipse.pde.internal.core.exports.FeatureExportOperation.doExport（FeatureExportOperation.java:267）
位于org.eclipse.pde.internal.core.exports.FeatureExportOperation.doExport（FeatureExportOperation.java:223）
位于org.eclipse.pde.internal.core.exports.FeatureExportOperation.run（FeatureExportOperation.java:100）
位于org.eclipse.core.internal.jobs.Worker.run（Worker.java:53）
原因：D:\apps\eclipse-jee-kepler-SR2-win32-x86\u 64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\assembly.org.eclipse.pde.container.feature.p2.xml:64:找不到jarsigner。确保使用JDK运行构建。
位于org.eclipse.equinox.internal.p2.jarprocessor.ant.AntSignCommand.execute（AntSignCommand.java:54）
位于org.eclipse.equinox.internal.p2.jarprocessor.ant.AntSignCommand.postProcess（AntSignCommand.java:36）
位于org.eclipse.internal.temporative.equinox.p2.jarprocessor.jarprocessor.postProcess（jarprocessor.java:252）
位于org.eclipse.internal.temporative.equinox.p2.jarprocessor.jarprocessor.processJar（jarprocessor.java:345）
位于org.eclipse.internal.temporative.equinox.p2.jarprocessor.JarProcessorExecutor.process（JarProcessorExecutor.java:173）
位于org.eclipse.internal.temporative.equinox.p2.jarprocessor.JarProcessorExecutor.processDirectory（JarProcessorExecutor.java:195）
位于org.eclipse.equinox.internal.p2.jarprocessor.ant.AntBasedProcessorExecutor.processDirectory（AntBasedProcessorExecutor.java:60）
在org.eclipse.internal.temporative.equinox.p2.jarprocessor.JarProcessorExecutor.process（JarProcessorExecutor.java:155）上
位于org.eclipse.internal.temporative.equinox.p2.jarprocessor.JarProcessorExecutor.runJarProcessor（JarProcessorExecutor.java:82）
位于org.eclipse.equinox.internal.p2.jarprocessor.ant.JarProcessorTask.execute（JarProcessorTask.java:109）
位于org.eclipse.equinox.p2.internal.repository.tools.tasks.ProcessRepoTask.execute（ProcessRepoTask.java:87）
位于org.apache.tools.ant.UnknowneElement.execute（unknowneElement.java:291）
位于sun.reflect.GeneratedMethodAccessor123.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke处（未知源）
位于java.lang.reflect.Method.invoke（未知源）
位于org.apache.tools.ant.dispatch.DispatchUtils.execute（DispatchUtils.java:106）
位于org.apache.tools.ant.Task.perform（Task.java:348）
位于org.apache.tools.ant.Target.execute（Target.java:392）
位于org.apache.tools.ant.Target.performTasks（Target.java:413）
位于org.apache.tools.ant.Project.executeSortedTargets（Project.java:1399）
位于org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets（SingleCheckExecutor.java:38）
在org.eclipse.ant.internal.core.ant.EclipseSingleCheckExecutor.executeTargets（EclipseSingleCheckExecutor.java:30）
位于org.apache.tools.ant.Project.executeTargets（Project.java:1251）
位于org.apache.tools.ant.taskdefs.ant.execute（ant.java:442）
... 26多
原因：执行失败：java.io.IOException:无法运行程序“jarsigner.exe”（在目录“D:\apps\eclipse-jee-kepler-SR2-win32-x86\u 64\eclipse\workspace\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature”中）：CreateProcess error=2，系统找不到指定的文件
位于org.apache.tools.ant.taskdefs.ExecTask.runExec（ExecTask.java:675）
位于org.apache.tools.ant.taskdefs.ExecTask.execute（ExecTask.java:498）
位于org.apache.tools.ant.taskdefs.SignJar.signOneJ