Timeout::timeout is broken when Java Integration is used
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Key: JRUBY-2148
URL: http://jira.codehaus.org/browse/JRUBY-2148
Project: JRuby
Issue Type: Bug
Components: Java Integration
Affects Versions: JRuby 1.1RC2
Environment: Solaris10 + JDK6
Reporter: Igor Minar
Attachments: LongProcess.class, LongProcess.java
I tried to use Timeout::timeout in my code, to time out an execution of a Java
code and I noticed that this doesn't work and the behavior differs between
JRuby 1.1RC2 and JRuby 1.0.3.
Here is the code
{code}
include Java
include_class 'LongProcess'
require 'benchmark'
require 'timeout'
# measure the execution and print results
Benchmark.measure {
begin
# timeout the operation after one second
Timeout::timeout(1) { LongProcess.run(1000000000) }
rescue Timeout::Error => e
puts e
end
}.to_s
{code}
JRuby 1.0.3 Result:
{code}
execution expired
=> " 3.612000 0.000000 3.612000 ( 3.612000)\n"
{code}
JRuby 1.1RC2 Result:
{code}
=> " 3.842000 0.000000 3.842000 ( 3.842833)\n"
{code}
no that the Timeout::Error exception was not thrown
Expected result:
{code}
execution expired
=> " 1.?????? 0.000000 1.?????? ( 1.??????)\n"
{code}
Timeout::timeout should interrupt the execution of the Java code, yielding the
total run time just a bit over one second, but that apparently doesn't happen.
I'm attaching the a simple Java class LongProcess that runs a mathematical
operations in loop to waste some time. Make sure that this class in on the
CLASSPATH before running the code above.
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