POSIX parameter expansion causing SEVERE error in Analyzer (within SonarQube)

[pepeki]

Describe the bug
A POSIX parameter expansion for filename/path extraction from the absolute path string seems to be causing SEVERE error in Analyzer.

To reproduce
Steps to reproduce the behavior:

1. Create bash script with the following lines
   • PATH=/home/ubuntu/test.file
   • echo ${PATH%/*}
   • echo ${PATH##*/}
2. RUN: docker run --rm -v $BITBUCKET_CLONE_DIR:/usr/src sonarsource/sonar-scanner-cli
   • against your SonarQube server
3. See error

Expected behavior
Successful analysis with results being uploaded to SonarQube

Screenshots & log

INFO: Sensor Sonar i-Code [icode]
Aug 27, 2020 9:20:33 AM fr.cnes.icode.logger.ICodeLogger error
SEVERE: [fr.cnes.icode] [ERROR] Class: fr.cnes.icode.Analyzer
Method: stableCheck
Message: Internal i-Code error: exception [JFlexException] thrown while checking [SH.MET.Nesting] on file [/usr/src/ansible/roles/mdoc-deploy/templates/deploy_devops.sh] - i-Code CNES analysis encountered a problem.
Analysis failure : At least one function is not ending correctly.
CheckerId: fr.cnes.icode.shell.metrics.SHMETNesting
File: /usr/src/ansible/roles/mdoc-deploy/templates/deploy_devops.sh
Line:219
Column:0
Last word scanned: [] []
Please report this issue on : https://github.com/lequal/i-CodeCNES/issues/
Aug 27, 2020 9:20:33 AM fr.cnes.icode.logger.ICodeLogger error
SEVERE: [fr.cnes.icode] [ERROR] Class: fr.cnes.icode.Analyzer
Method: stableCheck
fr.cnes.icode.exception.JFlexException: i-Code CNES analysis encountered a problem.
Analysis failure : At least one function is not ending correctly.
CheckerId: fr.cnes.icode.shell.metrics.SHMETNesting
File: /usr/src/ansible/roles/mdoc-deploy/templates/deploy_devops.sh
Line:219
Column:0
Last word scanned: [] []
Please report this issue on : https://github.com/lequal/i-CodeCNES/issues/
at fr.cnes.icode.shell.metrics.SHMETNesting.run(SHMETNesting.java:863)
at fr.cnes.icode.Analyzer.stableCheck(Analyzer.java:108)
at fr.cnes.sonar.plugins.icode.check.ICodeSensor.executeEmbeddedICode(ICodeSensor.java:187)
at fr.cnes.sonar.plugins.icode.check.ICodeSensor.execute(ICodeSensor.java:109)
at org.sonar.scanner.sensor.AbstractSensorWrapper.analyse(AbstractSensorWrapper.java:48)
at org.sonar.scanner.sensor.ModuleSensorsExecutor.execute(ModuleSensorsExecutor.java:85)
at org.sonar.scanner.sensor.ModuleSensorsExecutor.lambda$execute$1(ModuleSensorsExecutor.java:59)
at org.sonar.scanner.sensor.ModuleSensorsExecutor.withModuleStrategy(ModuleSensorsExecutor.java:77)
at org.sonar.scanner.sensor.ModuleSensorsExecutor.execute(ModuleSensorsExecutor.java:59)
at org.sonar.scanner.scan.ModuleScanContainer.doAfterStart(ModuleScanContainer.java:82)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:137)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:123)
at org.sonar.scanner.scan.ProjectScanContainer.scan(ProjectScanContainer.java:388)
at org.sonar.scanner.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:384)
at org.sonar.scanner.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:353)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:137)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:123)
at org.sonar.scanner.bootstrap.GlobalContainer.doAfterStart(GlobalContainer.java:144)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:137)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:123)
at org.sonar.batch.bootstrapper.Batch.doExecute(Batch.java:72)
at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:66)
at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:46)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)
at com.sun.proxy.$Proxy0.execute(Unknown Source)
at org.sonarsource.scanner.api.EmbeddedScanner.doExecute(EmbeddedScanner.java:189)
at org.sonarsource.scanner.api.EmbeddedScanner.execute(EmbeddedScanner.java:138)
at org.sonarsource.scanner.cli.Main.execute(Main.java:112)
at org.sonarsource.scanner.cli.Main.execute(Main.java:75)
at org.sonarsource.scanner.cli.Main.main(Main.java:61)

User environment (please complete the following information):
INFO: SonarScanner 4.4.0.2170
INFO: Java 11.0.6 AdoptOpenJDK (64-bit)
INFO: Linux 4.19.128-flatcar amd64
INFO: User cache: /opt/sonar-scanner/.sonar/cache
INFO: Scanner configuration file: /opt/sonar-scanner/conf/sonar-scanner.properties
INFO: Project root configuration file: /usr/src/sonar-project.properties
INFO: Analyzing on SonarQube server 8.4.1
INFO: Default locale: "en_US", source code encoding: "UTF-8" (analysis is platform dependent)

Sonar i-Code CNES plugin for SonarQube 2.0.2 (from Marketplace)

Additional context
Ran within Bitbucket pipeline