ConcurrentModificationException

[mmajcherczyk]

sometimes I get an exception

java.util.ConcurrentModificationException
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1388)
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at com.aventstack.extentreports.model.ReportStats.update(ReportStats.java:48)
at com.aventstack.extentreports.model.Report.refresh(Report.java:48)
at com.aventstack.extentreports.AbstractProcessor.onFlush(AbstractProcessor.java:82)
at com.aventstack.extentreports.ExtentReports.flush(ExtentReports.java:284)
at infakt.utilities.ExtentTestManager.logFlush(ExtentTestManager.java:37)

logFlush looks like this

public synchronized static void logFlush() {
    ExtentManager.getInstance().flush();
}

version 5.0.3
I run tests in parallel on 4 threads

[anshooarora]

I am able to reproduce with:

ExtentReports extent = new ExtentReports();
IntStream.range(1, 100).parallel().forEach(x -> {
    extent.createTest(String.valueOf(x)).pass("");
    extent.flush();
});

fix available with:

<version>5.0.7-SNAPSHOT</version>