OutOfMemoryError

[luoos]

When running iDFlakies on a project with a lot of tests, testrunner sometimes (not 100%) throws OutOfMemoryError.

Project: gradle/performance-comparisons
Branch: commons-lang (there is only one commit)
Version: testrunner-maven-plugin 1.0; idflakies 1.0.2 (I believe this issue also exists in the latest version 1.1)
Command: mvn testrunner:testplugin -Ddetector.detector_type=random-class-method -Ddt.randomize.rounds=10 -Ddt.detector.original_order.all_must_pass=false
Number of tests: 3120
Note: There are supposed to be 10 rounds, the error was thrown at the tenth round

ERROR (WRITE_ERROR_STDOUT_THROWABLE): org.apache.commons:commons-lang3:3.6-SNAPSHOT
ava.lang.OutOfMemoryError: Java heap space
	at java.util.ArrayList.<init>(ArrayList.java:183)
	at edu.illinois.cs.testrunner.runner.TestInfo.beforeInc(TestInfo.java:16)
	at edu.illinois.cs.testrunner.runner.TestInfo.updateFlakiness(TestInfo.java:50)
	at edu.illinois.cs.testrunner.runner.TestInfo.updateWith(TestInfo.java:39)
	at edu.illinois.cs.testrunner.runner.TestInfoStore.lambda$update$1(TestInfoStore.java:46)
	at edu.illinois.cs.testrunner.runner.TestInfoStore$$Lambda$77/531462687.accept(Unknown Source)
	at java.util.Map.forEach(Map.java:630)
	at edu.illinois.cs.testrunner.runner.TestInfoStore.update(TestInfoStore.java:44)
	at edu.illinois.cs.testrunner.runner.TestInfoStore.lambda$update$0(TestInfoStore.java:34)
	at edu.illinois.cs.testrunner.runner.TestInfoStore$$Lambda$76/1424610562.apply(Unknown Source)
	at scala.Option.foreach(Option.scala:257)
	at edu.illinois.cs.testrunner.runner.TestInfoStore.update(TestInfoStore.java:33)
	at edu.illinois.cs.testrunner.runner.SmartRunner.run(SmartRunner.scala:30)
	at edu.illinois.cs.testrunner.runner.Runner.runList(Runner.scala:28)
	at edu.illinois.cs.testrunner.runner.Runner.runList$(Runner.scala:27)
	at edu.illinois.cs.testrunner.runner.SmartRunner.runList(SmartRunner.scala:21)
	at edu.illinois.cs.dt.tools.detection.detectors.ExecutingDetector.runList(ExecutingDetector.java:50)
	at edu.illinois.cs.dt.tools.detection.detectors.RandomDetector.results(RandomDetector.java:42)
	at edu.illinois.cs.dt.tools.detection.detectors.ExecutingDetector$RunnerIterator.generateDetectionRound(ExecutingDetector.java:133)
	at edu.illinois.cs.dt.tools.detection.detectors.ExecutingDetector$RunnerIterator.generate(ExecutingDetector.java:150)