Hello,

I can't save my code with Eclipse's plug-in. Here is the StackTrace from Log:

ERROR [2010-09-30 12:42:36,914] (MetadataOperationsRetryAspect.java:metadataOperationsRetry:24) - ForceRemoteException occurred while attempting to perform a metadata operation
 WARN [2010-09-30 12:42:36,916] (BaseRetryAspect.java:isExceptionRetryable:198) - General evaluation deemed exception not retry-able:
 AxisFault: (0)null
ERROR [2010-09-30 12:42:36,917] (PackageDeployService.java:deployWork:291) - Unable to retrieve components: AxisFault: (0)null
ERROR [2010-09-30 12:42:36,918] (BuilderController.java:handleException:143) - Unable to perform save on all files.
com.salesforce.ide.core.services.DeployException: (0)null
    at com.salesforce.ide.core.services.PackageDeployService.deployWork(PackageDeployService.java:292)
    at com.salesforce.ide.core.services.PackageDeployService.deploy(PackageDeployService.java:143)
    at com.salesforce.ide.core.services.PackageDeployService.deploy(PackageDeployService.java:116)
    at com.salesforce.ide.core.project.BuilderController.handleSaves(BuilderController.java:120)
    at com.salesforce.ide.core.project.BuilderController.build(BuilderController.java:96)
    at com.salesforce.ide.core.project.BuilderController.build(BuilderController.java:76)
    at com.salesforce.ide.core.project.OnlineBuilder.incrementalBuild(OnlineBuilder.java:79)
    at com.salesforce.ide.core.project.OnlineBuilder.build(OnlineBuilder.java:49)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:627)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:170)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:253)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:256)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:309)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:341)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:140)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:238)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: (0)null
    at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:630)
    at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128)
    at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71)
    at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
    at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
    at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)
    at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
    at org.apache.axis.client.Call.invoke(Call.java:2553)
    at org.apache.axis.client.Call.invoke(Call.java:2248)
    at org.apache.axis.client.Call.invoke(Call.java:2171)
    at org.apache.axis.client.Call.invoke(Call.java:1691)
    at com.sforce.soap._2006._04.metadata.MetadataBindingStub.deploy(MetadataBindingStub.java:1918)
    at com.salesforce.ide.core.remote.MetadataStubExt.deploy(MetadataStubExt.java:535)
    at com.salesforce.ide.core.remote.MetadataStubExt$$FastClassByCGLIB$$9404e285.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
    at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
    at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:77)
    at com.salesforce.ide.core.internal.aspects.MetadataOperationsRetryAspect.metadataOperationsRetry(MetadataOperationsRetryAspect.java:22)
    at sun.reflect.GeneratedMethodAccessor44.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:627)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:616)
    at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:64)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)
    at com.salesforce.ide.core.remote.MetadataStubExt$$EnhancerByCGLIB$$2da28778.deploy(<generated>)
    at com.salesforce.ide.core.services.PackageDeployService.deployWork(PackageDeployService.java:275)
    ... 19 more

Edit: This is the StackTrace when I try to refresh a class also from the plug-in:

ERROR [2010-09-30 13:14:14,944] (MetadataOperationsRetryAspect.java:metadataOperationsRetry:24) - ForceRemoteException occurred while attempting to perform a metadata operation
 WARN [2010-09-30 13:14:14,947] (BaseRetryAspect.java:isExceptionRetryable:198) - General evaluation deemed exception not retry-able:
 AxisFault: (0)null
ERROR [2010-09-30 13:14:14,949] (PackageRetrieveService.java:retrieveWork:1065) - Unable to retrieve components: AxisFault: (0)null
ERROR [2010-09-30 13:14:14,971] (RefreshResourceAction.java:fetchRemoteComponents:92) - Unable to refresh resource(s)
AxisFault
 faultCode: {http://xml.apache.org/axis/}HTTP
 faultSubcode:
 faultString: (0)null
 faultActor:
 faultNode:
 faultDetail:
    {}string: return code:  0


(0)null
    at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:630)
    at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128)
    at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71)
    at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
    at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
    at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)
    at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
    at org.apache.axis.client.Call.invoke(Call.java:2553)
    at org.apache.axis.client.Call.invoke(Call.java:2248)
    at org.apache.axis.client.Call.invoke(Call.java:2171)
    at org.apache.axis.client.Call.invoke(Call.java:1691)
    at com.sforce.soap._2006._04.metadata.MetadataBindingStub.checkStatus(MetadataBindingStub.java:1825)
    at com.salesforce.ide.core.remote.MetadataStubExt.checkStatus(MetadataStubExt.java:288)
    at com.salesforce.ide.core.remote.MetadataStubExt$$FastClassByCGLIB$$9404e285.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
    at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
    at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:77)
    at com.salesforce.ide.core.internal.aspects.MetadataOperationsRetryAspect.metadataOperationsRetry(MetadataOperationsRetryAspect.java:22)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:627)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:616)
    at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:64)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)
    at com.salesforce.ide.core.remote.MetadataStubExt$$EnhancerByCGLIB$$11f60700.checkStatus(<generated>)
    at com.salesforce.ide.core.services.BasePackageService.waitForResult(BasePackageService.java:126)
    at com.salesforce.ide.core.services.PackageRetrieveService.getRetrieveResult(PackageRetrieveService.java:941)
    at com.salesforce.ide.core.services.PackageRetrieveService.retrieveWork(PackageRetrieveService.java:1053)
    at com.salesforce.ide.core.services.PackageRetrieveService.retrieveSelective(PackageRetrieveService.java:608)
    at com.salesforce.ide.core.services.PackageRetrieveService.retrieveSelective(PackageRetrieveService.java:525)
    at com.salesforce.ide.core.services.PackageRetrieveService.retrieveSelective(PackageRetrieveService.java:506)
    at com.salesforce.ide.ui.actions.RefreshResourceActionController.handleSourceComponentFileRefresh(RefreshResourceActionController.java:441)
    at com.salesforce.ide.ui.actions.RefreshResourceActionController.refreshResources(RefreshResourceActionController.java:164)
    at com.salesforce.ide.ui.actions.RefreshResourceAction$1.execute(RefreshResourceAction.java:63)
    at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:106)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
    at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118)
    at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)

Anyone know the reason?

Thanks in advance,