I have a memory leak problem with WebTest R_1810 (the latest available version
at the time of this writing). What I am doing boils down to the code below (in
reality, it is a bit more complex; MyWebtestCase would be highly configurable
and I am instantiating and running it with different parameters).
When I set a breakpoint to the last line in main(), the thread dump looks like
this:
Thread [main] (Suspended (breakpoint at line 14 in SampleRunner))
SampleRunner.main(String...) line: 14
Daemon Thread [JS executor for com.gargoylesoftware.htmlunit.webcli...@9a288b]
(Running)
Daemon Thread [JS executor for com.gargoylesoftware.htmlunit.webcli...@c08c0a]
(Running)
If I add another set of w = new MyWebtestCase(); w.execute() to the main
method, then I end up with three daemon threads.
The problem is that in my real application, each of these threads retains an
instance of class com.steadystate.css.dom.CSSStyleSheetImpl which occupies 1 MB
of heap space. So with each new MyWebtestCase instance and call to execute(),
the available heap space decreases by 1 MB. The result is that with 1 GB of
heap size, I can only run about 140 instances of my test before I get an
OutOfMemory exception. The goal is to run 1500 tests, so I can not fix it by
simply providing more heap space to the Java VM.
What can I do? I would expect the WebClient daemon thread to end as soon as the
webtest Closure in execute() ends, but I don't know how to accomplish this.
Thanks for your help!
Beat
---
import com.canoo.webtest.*
import com.canoo.webtest.reporting.HTMLReportGenerator
public class SampleRunner {
public static void main(def args) {
println('Starting test execution.')
MyWebtestCase w = new MyWebtestCase()
w.execute()
w = new MyWebtestCase()
w.execute()
println('Test execution finished.')
HTMLReportGenerator.INSTANCE.shutdown()
return
}
}
public class MyWebtestCase extends WebtestCase {
void execute() {
webtest("check that WebTest is Google's top 'WebTest' result") {
invoke "http://www.google.com/ncr";, description: "Go to Google (in
English)"
verifyTitle "Google"
setInputField name: "q", value: "WebTest"
clickButton "I'm Feeling Lucky"
verifyTitle "Canoo WebTest"
}
}
}
---
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