After updating to 1.7-rc-1 I’m seeing a problem:
Exception in thread “Thread-4” java.lang.Error: Project2 build threw org.gradle.api.GradleException: Could not generate a proxy class for class org.gradle.process.internal.DefaultExecAction.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)
at org.codehaus.groovy.reflection.CachedConstructor.doConstructorInvoke(CachedConstructor.java:71)
at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrap.callConstructor(ConstructorSite.java:81)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:54)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:182)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:190)
at build_5umkhjvp2j3hagg0bren1ca33m$1.run(C:\Users\scott.palmer\dev\Kayak\HGPlugins_MASTER\build.gradle:239)
I have a tree full of gradle projects in various subdirectories. They are not gradle sub-projects, each is an individual project - but they do have a sort of dependency on each other that is outside the scope of what gradle deals with. I have a gradle script that I use to find all of the projects and build them in the right order (there are other files in each project folder that I scan to figure out the build order… setting this up for gradle to figure out was too complex).
Anyway the script launches a new gradle command line (“cmd \c gradle.bat XXXXXX”) in the folder for each project using a pool of worker threads so that a few builds happen in parallel. (Again gradle might have a better way to handle this, but at the time this was the simplest solution)
It seems that my script now fails 100% of the time on the first or second project it tries to start. So the first build starts in worker thread 1, then the second build that starts in a different worker thread fails. Sometimes it is the first build that fails with the same error. It appears to be some sort of race condition. Exception in thread “Thread-3” java.lang.Error: Project1 build threw org.gradle.api.GradleException: Could not generate a proxy class for class org.gradle.process.internal.DefaultExecAction.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at …
Each gradle build runs in a new command interpreter. This is all on Windows 7.
I can run the same gradle command line in the projects manually and they build fine. If I let the script continue, all the other projects (100+) seem to build okay. (Building about 6 at a time in parallel.)
I have already deleted the .gradle folder in all of the projects. It had no effect.
Scott