Occurence of java.lang.RuntimeException: java.nio.file.NoSuchFileException: `CoveredTestResultPerTest.dat`

I have encountered a new exception as follows when I use flacoco to localize an NPE bug in [https://github.com/mybatis/mybatis-3/commit/5a26fd106832fc70c08d0a1597a1999798236581](https://github.com/mybatis/mybatis-3/commit/5a26fd106832fc70c08d0a1597a1999798236581):

```
[543] INFO EntryPoint - Path to runner Classes: /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[551] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[551] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[551] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[551] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[553] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[553] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[553] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[553] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[553] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[553] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
[553] INFO EntryPoint - /home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar
java.lang.RuntimeException: java.nio.file.NoSuchFileException: /mnt/data/tests/mybatis/first_bug/mybatis-3-tbar/./target/CoveredTestResultPerTest.dat
at eu.stamp_project.testrunner.listener.utils.ListenerUtils.loadFromMemoryMappedFile(ListenerUtils.java:83)
at eu.stamp_project.testrunner.listener.impl.OnlineCoveredTestResultPerTestMethodImpl.load(OnlineCoveredTestResultPerTestMethodImpl.java:169)
at eu.stamp_project.testrunner.EntryPoint.runOnlineCoveredTestResultPerTestMethods(EntryPoint.java:664)
at fr.spoonlabs.flacoco.core.coverage.framework.JUnit5Strategy.execute(JUnit5Strategy.java:30)
at fr.spoonlabs.flacoco.core.coverage.CoverageRunner.getCoverageMatrix(CoverageRunner.java:47)
at fr.spoonlabs.flacoco.localization.spectrum.SpectrumRunner.computeCoverageMatrix(SpectrumRunner.java:56)
at fr.spoonlabs.flacoco.localization.spectrum.SpectrumRunner.run(SpectrumRunner.java:32)
at fr.spoonlabs.flacoco.api.Flacoco.run(Flacoco.java:31)
at fr.spoonlabs.flacoco.cli.FlacocoMain.call(FlacocoMain.java:157)
at fr.spoonlabs.flacoco.cli.FlacocoMain.call(FlacocoMain.java:27)
at picocli.CommandLine.executeUserObject(CommandLine.java:1953)
at picocli.CommandLine.access$1300(CommandLine.java:145)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2352)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2346)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2311)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
at picocli.CommandLine.execute(CommandLine.java:2078)
at fr.spoonlabs.flacoco.cli.FlacocoMain.main(FlacocoMain.java:148)
Caused by: java.nio.file.NoSuchFileException: /mnt/data/tests/mybatis/first_bug/mybatis-3-tbar/./target/CoveredTestResultPerTest.dat
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:177)
at java.nio.channels.FileChannel.open(FileChannel.java:287)
at java.nio.channels.FileChannel.open(FileChannel.java:335)
at eu.stamp_project.testrunner.listener.utils.ListenerUtils.loadFromMemoryMappedFile(ListenerUtils.java:67)
... 17 more
```

My script is:
```
flacocoPath=/home/apr/tools/flacoco/target/flacoco-1.0.1-SNAPSHOT-jar-with-dependencies.jar

curDir="$(cd $(dirname $0); pwd)"
tool=tbar
bug_dir="$curDir/mybatis-3-${tool}"

src_java=${bug_dir}/"src/main/java/"
bin_java=${bug_dir}/"target/classes/"
bin_test=${bug_dir}/"target/test-classes/"
classpath=""

cd $bug_dir;
mvn dependency:copy-dependencies
cd -;

for file in ${bug_dir}/target/dependency/*
do
if [[ $file == *".jar" ]]; then
classpath="${classpath}:${file}"
fi
done

cd $bug_dir;
echo -e "java -jar $flacocoPath --projectpath $bug_dir --classpath ${bin_java}:${bin_test}$classpath \n\n"

java -jar $flacocoPath --projectpath $bug_dir --classpath ${bin_java}:${bin_test}$classpath
```

It would be sincerely appreciated if any advice could be given. Thank you!

Reproduce the shown Maven setup and java -jar command against the MyBatis checkout. Trace the stack from JUnit5Strategy and CoverageRunner through EntryPoint.runOnlineCoveredTestResultPerTestMethods to ListenerUtils.loadFromMemoryMappedFile, and determine why target/CoveredTestResultPerTest.dat is absent. Done means the failure is explained and the invocation either completes or gives an actionable setup error.

Written by the indexing model from the issue text.