Can't integrate SCM Activity into Jenkins with a non-Maven java build

When we configure a non-maven build in Jenkins with SCM Activity enabled it will not work. If we set sonar.scm.enabled to false the sonar analysis will complete.
The value of used for the scm url is the same value used in Jenkins to checkout the source.

Here are the properties as specified in Jenkins:
sonar.projectKey=msi:msi-gwt-legal
sonar.projectName=MSI-GWT-LEGAL
sonar.projectVersion=1.0
sources=trunk/source/java
tests=trunk/source/test
sonar.scm.url=scm:svn:http://msisvn.msidev.local/svn/msi/java/solutions/msi-gwt-legal/trunk
sonar.scm.enabled=true

Here is the error output from Jenkins:
BUILD SUCCESSFUL
Total time: 5 minutes 29 seconds
[workspace] $ java -cp D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\sonar-runner5184753014504243199.jar;D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\sonar-batch-bootstrapper6056373472667917500.jar org.sonar.runner.Main -Dsonar.jdbc.driver=com.mysql.jdbc.Driver -Dsonar.jdbc.url=jdbc:mysql://codemetrics.msidev.local:3306/sonar?useUnicode=true&characterEncoding=utf8&rewriteBatchedStatements=true ******** ******** -Dsonar.host.url=http://codemetrics.msidev.local -Dsonar.projectName=MSI-GWT-LEGAL -Dsonar.projectVersion=1.0 -Dsources=trunk/source/java -Dtests=trunk/source/test -Dsonar.projectKey=msi:msi-gwt-legal -Dsonar.scm.url=scm:svn:http://msisvn.msidev.local/svn/msi/java/solutions/msi-gwt-legal/trunk -Dsonar.scm.enabled=true
Runner configuration file: NONE
Project configuration file: NONE
Runner version: 1.2
Java version: 1.6.0_18, vendor: Sun Microsystems Inc.
OS name: "Windows Server 2008 R2", version: "6.1", arch: "amd64"
Server: http://codemetrics.msidev.local
Work directory: D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\.sonar
15:47:59.667 INFO o.s.c.p.Database - Create JDBC datasource
15:48:01.433 INFO actDatabaseConnector - Initializing Hibernate
15:48:07.105 INFO .s.b.b.ProjectModule - ------------- Analyzing MSI-GWT-LEGAL
15:48:07.839 INFO .s.b.ProfileProvider - Selected quality profile : [name=MSI Java Way,language=java]
15:48:07.871 INFO nPluginsConfigurator - Configure maven plugins...
15:48:08.074 INFO org.sonar.INFO - Compare to previous analysis (2012-04-25)
15:48:08.105 INFO org.sonar.INFO - Compare over 5 days (2012-04-20, analysis of 2012-04-19 16:16:07.0)
15:48:08.121 INFO org.sonar.INFO - Compare over 30 days (2012-03-26, analysis of 2012-04-16 12:59:33.0)
15:48:08.261 INFO .b.p.SensorsExecutor - Initializer ProjectFileSystemLogger...
15:48:08.261 INFO jectFileSystemLogger - Source directories:
15:48:08.261 INFO jectFileSystemLogger - D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\trunk\source\java
15:48:08.261 INFO jectFileSystemLogger - Test directories:
15:48:08.261 INFO jectFileSystemLogger - D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\trunk\source\test
15:48:08.261 INFO .b.p.SensorsExecutor - Initializer ProjectFileSystemLogger done: 0 ms
15:48:08.558 INFO p.PhasesTimeProfiler - Sensor JavaSourceImporter...
15:48:17.949 INFO p.PhasesTimeProfiler - Sensor JavaSourceImporter done: 9391 ms
15:48:17.949 INFO p.PhasesTimeProfiler - Sensor SquidSensor...
15:48:18.027 INFO .s.p.s.SquidExecutor - Java AST scan...
15:48:24.480 INFO .s.p.s.SquidExecutor - Java AST scan done: 6453 ms
15:48:24.590 INFO .s.p.s.SquidExecutor - Java Squid scan...
15:48:24.590 INFO .s.p.s.SquidExecutor - Java Squid scan done: 0 ms
15:48:24.590 INFO .s.p.s.SquidExecutor - Squid extraction...
15:48:25.261 INFO .s.p.s.SquidExecutor - Squid extraction done: 671 ms
15:48:25.340 INFO p.PhasesTimeProfiler - Sensor SquidSensor done: 7391 ms
15:48:25.340 INFO p.PhasesTimeProfiler - Sensor ScmActivitySensor...
15:48:25.340 INFO org.sonar.INFO - Check for local modifications...
15:48:25.371 INFO .p.s.SonarScmManager - Executing: cmd.exe /X /C "svn --non-interactive --trust-server-cert status"
15:48:25.371 INFO .p.s.SonarScmManager - Working directory: D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\trunk\source\java
15:48:25.621 INFO .p.s.SonarScmManager - Executing: cmd.exe /X /C "svn --non-interactive --trust-server-cert status"
15:48:25.621 INFO .p.s.SonarScmManager - Working directory: D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\trunk\source\test
15:48:25.746 INFO org.sonar.INFO - Check for local modifications done: 406 ms
15:48:25.840 INFO org.sonar.INFO - Retrieve changelog from revision 1...
15:48:25.840 INFO org.sonar.INFO - It can be long this first time. Next analysis will be faster.
15:48:25.855 INFO .p.s.SonarScmManager - Executing: cmd.exe /X /C "svn --non-interactive --trust-server-cert log -v -r 1:BASE"
15:48:25.855 INFO .p.s.SonarScmManager - Working directory: D:\Hudson\HUDSON_HOME\jobs\MSI-GWT-LEGAL\workspace\.
15:48:25.965 INFO org.sonar.INFO - Retrieve changelog from revision 1 done: 125 ms
Total time: 31.563s
Final Memory: 13M/341M
Exception in thread "main" org.sonar.batch.bootstrapper.BootstrapException: org.sonar.api.utils.SonarException: Unable to retrieve changelog: svn: '.' is not a working copy

at org.sonar.runner.Runner.delegateExecution(Runner.java:189)
at org.sonar.runner.Runner.execute(Runner.java:78)
at org.sonar.runner.Main.main(Main.java:61)
Caused by: org.sonar.api.utils.SonarException: Unable to retrieve changelog: svn: '.' is not a working copy

at org.sonar.plugins.scmactivity.Changelog.retrieveChangeSets(Changelog.java:105)
at org.sonar.plugins.scmactivity.Changelog.load(Changelog.java:55)
at org.sonar.plugins.scmactivity.ScmActivitySensor.analyse(ScmActivitySensor.java:83)
at org.sonar.batch.phases.SensorsExecutor.execute(SensorsExecutor.java:64)
at org.sonar.batch.phases.Phases.execute(Phases.java:93)
at org.sonar.batch.bootstrap.ProjectModule.doStart(ProjectModule.java:143)
at org.sonar.batch.bootstrap.Module.start(Module.java:83)
at org.sonar.batch.bootstrap.BatchModule.analyze(BatchModule.java:115)
at org.sonar.batch.bootstrap.BatchModule.doStart(BatchModule.java:105)
at org.sonar.batch.bootstrap.Module.start(Module.java:83)
at org.sonar.batch.bootstrap.BootstrapModule.doStart(BootstrapModule.java:109)
at org.sonar.batch.bootstrap.Module.start(Module.java:83)
at org.sonar.batch.Batch.execute(Batch.java:104)
at org.sonar.runner.Launcher.executeBatch(Launcher.java:65)
at org.sonar.runner.Launcher.execute(Launcher.java:58)
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.sonar.runner.Runner.delegateExecution(Runner.java:186)
... 2 more
Build step 'Invoke Standalone Sonar Analysis' marked build as failure
Finished: FAILURE