I use both the latest version Jenkins and subversion plugin, make build on my Mac OSX 10.7, when I checkout code from svn, it sometimes failed to checkout codes(about 10% will fail).
here is some error log. I'm ensure that the network and the SVN is ok.is it the bug of subversion plugin?

ERROR: Failed to check out https://myrepository
org.tmatesoft.svn.core.SVNException: svn: E175002: REPORT /svn/SuperFans/!svn/vcc/default failed
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:379)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:364)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:352)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.performHttpRequest(DAVConnection.java:708)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doReport(DAVConnection.java:335)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.runReport(DAVRepository.java:1289)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.update(DAVRepository.java:837)
at org.tmatesoft.svn.core.internal.wc16.SVNUpdateClient16.update(SVNUpdateClient16.java:507)
at org.tmatesoft.svn.core.internal.wc16.SVNUpdateClient16.doCheckout(SVNUpdateClient16.java:915)
at org.tmatesoft.svn.core.internal.wc2.old.SvnOldCheckout.run(SvnOldCheckout.java:19)
at org.tmatesoft.svn.core.internal.wc2.old.SvnOldCheckout.run(SvnOldCheckout.java:8)
at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:20)
at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1235)
at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:291)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.doCheckout(SVNUpdateClient.java:777)
at hudson.scm.subversion.CheckoutUpdater$1.perform(CheckoutUpdater.java:99)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:153)
at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:903)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:884)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:867)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2309)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:326)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:680)
Caused by: svn: E175002: REPORT /svn/SuperFans/!svn/vcc/default failed
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:208)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:154)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:97)
... 30 more
Caused by: org.tmatesoft.svn.core.SVNException: svn: E175002: REPORT request failed on '/svn/SuperFans/!svn/vcc/default'
svn: E175002: Connection reset
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:64)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:51)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:754)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:373)
... 29 more
Caused by: svn: E175002: REPORT request failed on '/svn/SuperFans/!svn/vcc/default'
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:208)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:752)
... 30 more
Caused by: svn: E175002: Connection reset
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:109)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:507)
... 30 more
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at com.sun.net.ssl.internal.ssl.InputRecord.readFully(InputRecord.java:422)
at com.sun.net.ssl.internal.ssl.InputRecord.readV3Record(InputRecord.java:534)
at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:489)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:863)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:820)
at com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
at org.tmatesoft.svn.core.internal.util.ChunkedInputStream.read(ChunkedInputStream.java:75)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at org.tmatesoft.svn.core.internal.io.dav.http.XMLReader.read(XMLReader.java:39)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(XMLEntityScanner.java:1742)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.skipChar(XMLEntityScanner.java:1416)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2793)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:647)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:869)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:834)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPRequest.dispatch(HTTPRequest.java:218)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:460)
... 30 more
FATAL: null
java.lang.NullPointerException
at java.util.ArrayList.addAll(ArrayList.java:472)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:843)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:781)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1324)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:676)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:581)
at hudson.model.Run.execute(Run.java:1518)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)