sonar CXX plugin sonar scan can't finish when it found can't find resources

[liucc52]

sonar scan can't finish when it found can't find resources

our sonar scan stucked when it reports lots of warn
can not find resources for '#include< QDir >'
can not find resources for '#include< QRecF >'

[guwirth]

Hi,
which version of SQ and cxx plugin are you using?
Please provide LOG file (at least relevant parts).
Regards,

[liucc52]

we are using sonarqube 7.3 cxx plugin 1.2
right now we find if our code have xx< xx::xxx >
the cxx plugin end in a deadlock

"main" #1 prio=5 os_prio=0 tid=0x0000000002669000 nid=0x4cb0 runnable [0x000000000286d000] java.lang.Thread.State: RUNNABLE at java.util.LinkedList.toArray(LinkedList.java:1052) at java.util.ArrayList.(ArrayList.java:177) at org.sonar.cxx.preprocessor.CxxPreprocessor.handleIdentifiersAndKeywords(CxxPreprocessor.java:766) at org.sonar.cxx.preprocessor.CxxPreprocessor.process(CxxPreprocessor.java:482) at com.sonar.sslr.impl.Lexer.preprocess(Lexer.java:153) at com.sonar.sslr.impl.Lexer.preprocess(Lexer.java:143) at com.sonar.sslr.impl.Lexer.lex(Lexer.java:132) at com.sonar.sslr.impl.Lexer.lex(Lexer.java:110) at org.sonar.cxx.preprocessor.CxxPreprocessor.expandMacro(CxxPreprocessor.java:851) at org.sonar.cxx.preprocessor.CxxPreprocessor.handleIdentifiersAndKeywords(CxxPreprocessor.java:747) at org.sonar.cxx.preprocessor.CxxPreprocessor.process(CxxPreprocessor.java:482)

[guwirth]

@liucc52 can you provide the source code creating this issue please.

[liucc52]

the code contains template like this
Circle< vc::point >
if we remove < vc::point >, the scan would be ok

[guwirth]

@liucc52 maybe duplicate of this #1383?

[liucc52]

yes, i think it is the same issue with #1383, is this issue resolved?

[liucc52]

we found this is a bug of sslr, the thread dump show the main thread hang at
java.lang.Thread.State: RUNNABLE
at org.sonar.sslr.internal.vm.Machine.execute(Machine.java:162)
at org.sonar.sslr.internal.vm.Machine.execute(Machine.java:105)
at org.sonar.sslr.internal.vm.Machine.parse(Machine.java:61)
at com.sonar.sslr.impl.Parser.parse(Parser.java:84)
at com.sonar.sslr.impl.Parser.parse(Parser.java:69)
at org.sonar.squidbridge.AstScanner.scanFiles(AstScanner.java:94)
at org.sonar.cxx.sensors.squid.CxxSquidSensor.execute(CxxSquidSensor.java:156)
at org.sonar.scanner.sensor.SensorWrapper.analyse(SensorWrapper.java:53)
at org.sonar.scanner.phases.SensorsExecutor.executeSensor(SensorsExecutor.java:88)
at org.sonar.scanner.phases.SensorsExecutor.execute(SensorsExecutor.java:82)
at org.sonar.scanner.phases.SensorsExecutor.execute(SensorsExecutor.java:68)
at org.sonar.scanner.phases.AbstractPhaseExecutor.execute(AbstractPhaseExecutor.java:88)
at org.sonar.scanner.scan.ModuleScanContainer.doAfterStart(ModuleScanContainer.java:177)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:135)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:121)
at org.sonar.scanner.scan.ProjectScanContainer.scan(ProjectScanContainer.java:291)
at org.sonar.scanner.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:286)
at org.sonar.scanner.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:264)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:135)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:121)
at org.sonar.scanner.task.ScanTask.execute(ScanTask.java:48)
at org.sonar.scanner.task.TaskContainer.doAfterStart(TaskContainer.java:84)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:135)
at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:121)
at org.sonar.scanner.bootstrap.GlobalContainer.executeTask(GlobalContainer.java:121)
at org.sonar.batch.bootstrapper.Batch.doExecuteTask(Batch.java:116)
at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:71)
- locked <0x00000007022abca8> (a org.sonar.batch.bootstrapper.Batch)
at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
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:171)
at org.sonarsource.scanner.api.EmbeddedScanner.execute(EmbeddedScanner.java:128)
at org.sonarsource.scanner.cli.Main.execute(Main.java:111)
at org.sonarsource.scanner.cli.Main.execute(Main.java:75)
at org.sonarsource.scanner.cli.Main.main(Main.java:61)

[liucc52]

we resolve this problem by add sonar.cxx.defines=< <,> > to sonar-project.properties

[guwirth]

@liucc52 thx for your workaround. What exactly did you do? Replacing < with BLANK<, ...? Question is what happens with shift operators >>?

[guwirth]

see #1685