Knut Anders Hatlen created DERBY-6295:
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Summary: Allow tests to show detailed error when spawning new
process fails
Key: DERBY-6295
URL: https://issues.apache.org/jira/browse/DERBY-6295
Project: Derby
Issue Type: Improvement
Components: Test
Affects Versions: 10.11.0.0
Reporter: Knut Anders Hatlen
Priority: Minor
In recent versions of Java, Runtime.exec() will hide the underlying exception
unless the code base is granted read permission on the executable file.
Example:
These two failures probably have the same cause:
http://download.java.net/javadesktop/derby/javadb-5579292-report/javadb-task-3689381.html
http://download.java.net/javadesktop/derby/javadb-5579170-report/javadb-task-3688261.html
The former, running on an older JVM, shows the real cause:
java.io.IOException: Cannot run program
"/localhome/tendril4.2/work/install/sun-jdk-7u10-fcs-bin-b31/jdk7_10/jdk1.7.0_10/jre/bin/java":
error=12, Not enough space
Caused by: java.io.IOException: error=12, Not enough space
The latter, running on a more recent JVM, hides the real failure behind an
AccessControlException:
java.io.IOException: Cannot run program
"/localhome/tendril4.2/work/install/sun-jdk-8-ea-bin-b93/jdk8/jdk1.8.0/jre/bin/java"
Caused by: java.security.AccessControlException: access denied
("java.io.FilePermission"
"/localhome/tendril4.2/work/install/sun-jdk-8-ea-bin-b93/jdk8/jdk1.8.0/jre/bin/java"
"read")
We should consider changing the following grant in derby_tests.policy to
include "read" in order to make it easier to see why a test is failing:
// Tests need to be able to exec a java program.
permission java.io.FilePermission "${java.home}${/}-", "execute";
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