java反编译错误，求解！！！！！

/*jadclipse*//*
DECOMPILATION REPORT Decompiled from: D:\project\qxj\web\WEB-INF\lib\system.jar
Total time: 31 ms
Jad reported messages/errors:
Exit status: 0
Caught exceptions:
java.io.IOException: CreateProcess: jad -p -t4 -lradix10 -radix10 ModelTree.class error=2
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
at java.lang.ProcessBuilder.start(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at net.sf.jadclipse.JadDecompiler.decompile(JadDecompiler.java:160)
at net.sf.jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:217)
at net.sf.jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:150)
at net.sf.jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:83)
at net.sf.jadclipse.JadclipseClassFileEditor.doOpenBuffer(JadclipseClassFileEditor.java:87)
at net.sf.jadclipse.JadclipseClassFileEditor.doSetInput(JadclipseClassFileEditor.java:45)
at net.sf.jadclipse.JadclipseActionBarContributor.setActiveEditor(JadclipseActionBarContributor.java:87)
at org.eclipse.ui.internal.EditorActionBars.partChanged(EditorActionBars.java:335)
at org.eclipse.ui.internal.WorkbenchPage$3.run(WorkbenchPage.java:629)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.WorkbenchPage.activatePart(WorkbenchPage.java:618)
at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3398)
at org.eclipse.ui.internal.WorkbenchPage.activate(WorkbenchPage.java:611)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2748)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2651)
at org.eclipse.ui.internal.WorkbenchPage.access$13(WorkbenchPage.java:2643)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2595)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2590)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2574)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2565)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:299)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:173)
at org.eclipse.jdt.ui.JavaUI.openInEditor(JavaUI.java:670)
at org.eclipse.jdt.ui.JavaUI.openInEditor(JavaUI.java:648)
at org.eclipse.jst.jsp.ui.internal.hyperlink.JSPJavaHyperlink.open(JSPJavaHyperlink.java:58)
at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseUp(HyperlinkManager.java:429)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:206)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3682)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3293)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
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:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
at org.eclipse.equinox.launcher.Main.main(Main.java:1148)
*/