问题
I have written a java class that utilises org.apache.commons.httpclient.
Initially i imported the java files into my nsf along with codec dependencies; the application worked fine. I then found that these were available in the eclipse plugins directory; so i then added them as a dependency in the plugin.xml
Now when i try to run the application i get an error 500 and the following is recorded in the xpages_exc tech support file:
22/06/12 14:33: Exception Thrown
javax.servlet.ServletException: java.lang.NoClassDefFoundError: org.apache.commons.httpclient.HttpMethod
at com.ibm.xsp.webapp.FacesServlet.handleError(FacesServlet.java:619)
at com.ibm.xsp.webapp.FacesServlet.renderErrorPage(FacesServlet.java:453)
at com.ibm.xsp.webapp.FacesServlet.service(FacesServlet.java:183)
at com.ibm.xsp.webapp.FacesServletEx.service(FacesServletEx.java:137)
at com.ibm.xsp.webapp.DesignerFacesServlet.service(DesignerFacesServlet.java:103)
at com.ibm.designer.runtime.domino.adapter.ComponentModule.invokeServlet(ComponentModule.java:576)
at com.ibm.domino.xsp.module.nsf.NSFComponentModule.invokeServlet(NSFComponentModule.java:1267)
at com.ibm.designer.runtime.domino.adapter.ComponentModule$AdapterInvoker.invokeServlet(ComponentModule.java:847)
at com.ibm.designer.runtime.domino.adapter.ComponentModule$ServletInvoker.doService(ComponentModule.java:796)
at com.ibm.designer.runtime.domino.adapter.ComponentModule.doService(ComponentModule.java:565)
at com.ibm.domino.xsp.module.nsf.NSFComponentModule.doService(NSFComponentModule.java:1251)
at com.ibm.domino.xsp.module.nsf.NSFService.doServiceInternal(NSFService.java:598)
at com.ibm.domino.xsp.module.nsf.NSFService.doService(NSFService.java:421)
at com.ibm.designer.runtime.domino.adapter.LCDEnvironment.doService(LCDEnvironment.java:341)
at com.ibm.designer.runtime.domino.adapter.LCDEnvironment.service(LCDEnvironment.java:297)
at com.ibm.domino.xsp.bridge.http.engine.XspCmdManager.service(XspCmdManager.java:272)
Caused by: java.lang.NoClassDefFoundError: org.apache.commons.httpclient.HttpMethod
at java.lang.J9VMInternals.verifyImpl(Native Method)
at java.lang.J9VMInternals.verify(J9VMInternals.java:72)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:134)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:56)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:39)
at java.lang.reflect.Constructor.newInstance(Constructor.java:527)
at com.ibm.jscript.types.JavaAccessObject.construct(JavaAccessObject.java:260)
at com.ibm.jscript.types.JavaWrapperObject.construct(JavaWrapperObject.java:1)
at com.ibm.jscript.ASTTree.ASTNew.interpret(ASTNew.java:109)
at com.ibm.jscript.ASTTree.ASTVariableDecl.interpret(ASTVariableDecl.java:82)
at com.ibm.jscript.ASTTree.ASTBlock.interpret(ASTBlock.java:100)
at com.ibm.jscript.ASTTree.ASTIf.interpret(ASTIf.java:85)
at com.ibm.jscript.ASTTree.ASTBlock.interpret(ASTBlock.java:100)
at com.ibm.jscript.ASTTree.ASTTry.interpret(ASTTry.java:109)
at com.ibm.jscript.ASTTree.ASTProgram.interpret(ASTProgram.java:119)
at com.ibm.jscript.ASTTree.ASTProgram.interpretEx(ASTProgram.java:139)
at com.ibm.jscript.JSExpression._interpretExpression(JSExpression.java:435)
at com.ibm.jscript.JSExpression.access$1(JSExpression.java:424)
at com.ibm.jscript.JSExpression$2.run(JSExpression.java:414)
at java.security.AccessController.doPrivileged(AccessController.java:284)
at com.ibm.jscript.JSExpression.interpretExpression(JSExpression.java:410)
at com.ibm.jscript.JSExpression.evaluateValue(JSExpression.java:251)
at com.ibm.jscript.JSExpression.evaluateValue(JSExpression.java:234)
at com.ibm.xsp.javascript.JavaScriptInterpreter.interpret(JavaScriptInterpreter.java:221)
at com.ibm.xsp.binding.javascript.JavaScriptMethodBinding.invoke(JavaScriptMethodBinding.java:111)
at com.ibm.xsp.component.UIIncludeComposite.initBeforePageContents(UIIncludeComposite.java:672)
at com.ibm.xsp.page.compiled.AbstractCompiledPage.initComponent(AbstractCompiledPage.java:339)
at com.ibm.xsp.page.compiled.AbstractCompiledPage.createTree(AbstractCompiledPage.java:256)
at com.ibm.xsp.page.compiled.AbstractCompiledPage.addComponent(AbstractCompiledPage.java:389)
at com.ibm.xsp.component.UIIncludeComposite.buildContents(UIIncludeComposite.java:453)
at com.ibm.xsp.page.compiled.AbstractCompiledPage.initComponent(AbstractCompiledPage.java:334)
at com.ibm.xsp.page.compiled.CompiledComponentBuilder.buildChildren(CompiledComponentBuilder.java:123)
at com.ibm.xsp.page.compiled.CompiledComponentBuilder.buildAll(CompiledComponentBuilder.java:84)
at com.ibm.xsp.component.UIViewRootEx.buildContents(UIViewRootEx.java:1649)
at com.ibm.xsp.component.UIViewRootEx2.buildContents(UIViewRootEx2.java:246)
at com.ibm.xsp.page.compiled.AbstractCompiledPage.initComponent(AbstractCompiledPage.java:334)
at com.ibm.xsp.page.compiled.AbstractCompiledPage.createTree(AbstractCompiledPage.java:256)
at com.ibm.xsp.page.compiled.AbstractCompiledPage.createViewRoot(AbstractCompiledPage.java:167)
at com.ibm.xsp.application.ViewHandlerExImpl._createViewRoot(ViewHandlerExImpl.java:511)
at com.ibm.xsp.application.ViewHandlerExImpl.createViewRoot(ViewHandlerExImpl.java:557)
at com.ibm.xsp.application.ViewHandlerExImpl.doCreateView(ViewHandlerExImpl.java:141)
at com.ibm.xsp.application.ViewHandlerEx.createView(ViewHandlerEx.java:90)
at com.ibm.xsp.webapp.FacesServlet.serviceView(FacesServlet.java:238)
at com.ibm.xsp.webapp.FacesServletEx.serviceView(FacesServletEx.java:200)
at com.ibm.xsp.webapp.FacesServlet.service(FacesServlet.java:160)
... 13 more
Caused by: java.lang.ClassNotFoundException: Cannot find class org.apache.commons.httpclient.HttpMethod in NSF
at com.ibm.domino.xsp.module.nsf.ModuleClassLoader$DynamicClassLoader.findClass(ModuleClassLoader.java:432)
at java.lang.ClassLoader.loadClass(ClassLoader.java:653)
at com.ibm.domino.xsp.module.nsf.ModuleClassLoader$DynamicClassLoader.loadClass(ModuleClassLoader.java:341)
at java.lang.ClassLoader.loadClass(ClassLoader.java:619)
... 59 more
回答1:
Create a folder under WebContent\WEB-INF called lib. You don’t need to add it into the Build Path. Import the apache commons jar into that as a jar. Then it worked for me, but as I say I haven’t tested on more than one method on one server.
Also covered in this question Imported plugin into XPages Project not working
来源：https://stackoverflow.com/questions/11157168/xpages-java-lang-classnotfoundexception-cannot-find-class-org-apache-commons-h