Spring STS 3.9.0與Spring Boot devtools問題

我本週升級到Spring STS的新3.9.0版本。除了當我啓動一個Spring Boot web應用程序（spring啓動版本1.5.3）時，一切都很好，我得到一個錯誤。Spring STS 3.9.0與Spring Boot devtools問題

An internal error occurred during: "Ready state poller". 
com.google.common.util.concurrent.UncheckedExecutionException: java.lang.NullPointerException 
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2199) 
    at com.google.common.cache.LocalCache.get(LocalCache.java:3932) 
    at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3936) 
    at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4806) 
    at org.springframework.ide.eclipse.boot.dash.model.LocalCloudServiceDashElement.getLaunchConfigs(LocalCloudServiceDashElement.java:144) 
    at org.springframework.ide.eclipse.boot.dash.model.AbstractLaunchConfigurationsDashElement$4.stateChanged(AbstractLaunchConfigurationsDashElement.java:434) 
    at org.springframework.ide.eclipse.boot.dash.model.AbstractLaunchConfigurationsDashElement$4.stateChanged(AbstractLaunchConfigurationsDashElement.java:1) 
    at org.springframework.ide.eclipse.boot.dash.util.RunStateTracker.updateOwnerStatesAndFireEvents(RunStateTracker.java:216) 
    at org.springframework.ide.eclipse.boot.dash.util.RunStateTracker.access$0(RunStateTracker.java:208) 
    at org.springframework.ide.eclipse.boot.dash.util.RunStateTracker$1.gotValue(RunStateTracker.java:151) 
    at org.springframework.ide.eclipse.boot.dash.util.RunStateTracker$1.gotValue(RunStateTracker.java:1) 
    at org.springsource.ide.eclipse.commons.livexp.core.LiveExpression.changed(LiveExpression.java:114) 
    at org.springsource.ide.eclipse.commons.livexp.core.LiveExpression.refresh(LiveExpression.java:71) 
    at org.springsource.ide.eclipse.commons.livexp.core.LiveVariable.setValue(LiveVariable.java:46) 
    at org.springframework.ide.eclipse.boot.dash.util.AbstractPollingAppReadyStateMonitor$1.run(AbstractPollingAppReadyStateMonitor.java:51) 
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56) 
Caused by: java.lang.NullPointerException 
    at org.eclipse.debug.internal.core.LaunchManager.isValidLaunchConfigurationName(LaunchManager.java:2706) 
    at org.eclipse.debug.internal.core.LaunchConfigurationType.newInstance(LaunchConfigurationType.java:473) 
    at org.springframework.ide.eclipse.boot.launch.cli.CloudCliServiceLaunchConfigurationDelegate.createLaunchConfig(CloudCliServiceLaunchConfigurationDelegate.java:156) 
    at org.springframework.ide.eclipse.boot.dash.model.LocalCloudServiceDashElement$1.load(LocalCloudServiceDashElement.java:68) 
    at org.springframework.ide.eclipse.boot.dash.model.LocalCloudServiceDashElement$1.load(LocalCloudServiceDashElement.java:1) 
    at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3522) 
    at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2315) 
    at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2278) 
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2193) 
    ... 15 more

會話數據：

eclipse.buildId=3.9.0.201707061823-RELEASE-e47 
java.version=1.8.0_51 
java.vendor=Oracle Corporation 
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US 
Framework arguments: -product org.springsource.sts.ide -product org.springsource.sts.ide 
Command-line arguments: -os win32 -ws win32 -arch x86 -product org.springsource.sts.ide -data C:\Jeff Local\Workspace\gisp_3.9.0 -product org.springsource.sts.ide

一切工作與服務器當我改變代碼除，devtools不會重新加載該應用程序。我必須手動重新啓動它。

我最初使用現有工作空間（它自動升級），但我也試着：