On Jan 11, 2009, at 6:45 PM, Jason Sankey wrote:
Hi Helmut,
My response is inline below.
Helmut Denk wrote:
this may be a known issue ... its not critical IMO
because it can be overcome by simply repeating the command.
Personally, I would consider a sporadic failure serious -- it mean
you lose confidence in the build, and can start ignoring real
errors. This is most problematic when using an automated build.
I agree.
running gradle 0.5.2 under xp i get sporadic errors like this:
<snip>
Exception in thread "main" java.io.IOException: Zugriff verweigert
at
org.codehaus.groovy.ant.Groovyc.createTempDir(Groovyc.java:759)
at
org.codehaus.groovy.ant.Groovyc.evalCompilerFlags(Groovyc.java:812)
at org.codehaus.groovy.ant.Groovyc.main(Groovyc.java:831)
Caused by: java.io.IOException: Zugriff verweigert
at java.io.WinNTFileSystem.createFileExclusively(Native
Method)
at java.io.File.checkAndCreate(File.java:1345)
at java.io.File.createTempFile(File.java:1434)
at java.io.File.createTempFile(File.java:1471)
at
org.codehaus.groovy.ant.Groovyc.createTempDir(Groovyc.java:755)
... 2 more
<snip>
This exception indicates the problem is at a lower level, the the
JVM's File.createTempFile method. Unfortunately in many JVM
versions this method is unreliable on Windows, where it will
occasionally fail with "Access Denied" messages (which I understand
is "Zugriff verweigert" in German). This has been reported as a JVM
bug some time ago:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6325169
but not fixed.
Even though this is not Gradle's fault, though, I think it is
serious enough to work around. A simple workaround that has worked
for us in our own project is to get the system temporary directory
(from java.io.tmpdir), generate our own random file names and retry
on a clash with an existing file.
Right now we are delegating to the Groovyc task shipped with Groovy.
It would be interesting to know, if this problem is fixed in a newer
version of Groovy.
Thanks a lot for illuminating this bug.
- Hans
Cheers,
Jason
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