[google-appengine] problem with the Java dev_appserver after updating to Java JDK 1.7.0_21

[Gary Frederick]

Several of us can not get the dev_appserver to bring up an app correctly 
after updating to Java JDK 1.7.0_21. The 'fix' is to go back to Java 
1.7.0._17. 

We would like to find what changed and see if we can do something about it. 

The error is 

java.io.IOException: Cannot find cached resource for URL: 
http://localhost:8888/ode2/webstartfile/v132-16-g0025b7e_d824h4eddfpc0kipeldr4iva1k9hgrc4x1ozk7q86g0hjtqzv82hheizrfaervtvr05omhmta51gkm9qasqckx8vr61zt1nzb2e52wp365oj0q69kjkdikxo0e8nc7b80takai1o3n/BlocksEditor.jar
    at com.sun.deploy.cache.Cache.getCachedResourceFilePath(Unknown Source)
    at 
com.sun.deploy.cache.ResourceProviderImpl.getCachedResourceFilePath(Unknown 
Source)
    at 
com.sun.javaws.security.JNLPSignedResourcesHelper.getSignedJNLPBits(Unknown 
Source)
    at 
com.sun.javaws.security.JNLPSignedResourcesHelper.getSignedJNLPFile(Unknown 
Source)
    at 
com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedLaunchDescHelper(Unknown
 
Source)
    at 
com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedLaunchDesc(Unknown 
Source)
    at 
com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedLaunchDesc(Unknown 
Source)
    at com.sun.javaws.Launcher.prepareResources(Unknown Source)
    at com.sun.javaws.Launcher.prepareAllResources(Unknown Source)
    at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
    at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
    at com.sun.javaws.Launcher.launch(Unknown Source)
    at com.sun.javaws.Main.launchApp(Unknown Source)
    at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
    at com.sun.javaws.Main.access$000(Unknown Source)
    at com.sun.javaws.Main$1.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Any ideas what to look for?

Gary 


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