title: SonarQube upgrade from 6.4 to 6.5 breaks the scanner
body: <ol>
  <li>I am on sonarQube6.4 and have upgraded to 6.5</li>
  <li>Sonar-scanner is 3.0.3</li>
  <li>Now after the upgrade the scanner fails anytime there is a java file in the source path. If I don't scan java files everything works just fine.</li>
  <li>However If I rollback an use 6.4 version, everything works fine, so is there any regression? This is the stack trace, when I run the scanner command  with -X command. So is it a mandate in 6.5 to provided the location of all compiled classed, is there a way to ignore it.</li>
  </ol>
  
  <blockquote>
    <p>04:56:21.218 DEBUG: Sensors : JavaSquidSensor -> SurefireSensor ->
    JaCoCoSensor -> SonarJavaXmlFileSensor -> Analyzer for "php.ini" files
    -> Zero Coverage Sensor -> CPD Block Indexer 04:56:21.218 INFO: Sensor JavaSquidSensor [java] 04:56:21.558 INFO: Configured Java source
    version (sonar.java.source): none 04:56:21.565 INFO: JavaClasspath
    initialization 04:56:21.570 INFO:
    ------------------------------------------------------------------------ 04:56:21.571 INFO: EXECUTION FAILURE 04:56:21.571 INFO:
    ------------------------------------------------------------------------ 04:56:21.571 INFO: Total time: 6.545s 04:56:21.707 INFO: Final Memory:
    51M/1083M 04:56:21.707 INFO:
    ------------------------------------------------------------------------ 04:56:21.707 ERROR: Error during SonarQube Scanner execution
    org.sonar.squidbridge.api.AnalysisException: Please provide compiled
    classes of your project with sonar.java.binaries property
            at org.sonar.java.JavaClasspath.init(JavaClasspath.java:59)
            at org.sonar.java.AbstractJavaClasspath.getElements(AbstractJavaClasspath.java:281)
            at org.sonar.java.SonarComponents.getJavaClasspath(SonarComponents.java:141)
            at org.sonar.java.JavaSquid.(JavaSquid.java:83)
            at org.sonar.plugins.java.JavaSquidSensor.execute(JavaSquidSensor.java:83)
            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:78)
            at org.sonar.scanner.scan.ModuleScanContainer.doAfterStart(ModuleScanContainer.java:179)
            at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:144)
            at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:129)
            at org.sonar.scanner.scan.ProjectScanContainer.scan(ProjectScanContainer.java:261)
            at org.sonar.scanner.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:256)
            at org.sonar.scanner.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:245)
            at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:144)
            at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:129)
            at org.sonar.scanner.task.ScanTask.execute(ScanTask.java:47)
            at org.sonar.scanner.task.TaskContainer.doAfterStart(TaskContainer.java:84)
            at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:144)
            at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:129)
            at org.sonar.scanner.bootstrap.GlobalContainer.executeTask(GlobalContainer.java:119)
            at org.sonar.batch.bootstrapper.Batch.executeTask(Batch.java:116)
            at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:63)
            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:233)
            at org.sonarsource.scanner.api.EmbeddedScanner.runAnalysis(EmbeddedScanner.java:151)
            at org.sonarsource.scanner.cli.Main.runAnalysis(Main.java:123)
            at org.sonarsource.scanner.cli.Main.execute(Main.java:77)
            at org.sonarsource.scanner.cli.Main.main(Main.java:61) 04:56:21.710 DEBUG: Execution getVersion 04:56:21.711 DEBUG: Execution
    stop</p>
  </blockquote>
  
  <p>When I run the same with 6.4, it works fine and the only warning I see in the console is :</p>
  
  <blockquote>
    <p>04:52:42.738 WARN: Bytecode of dependencies was not provided for analysis of source files, you might end up with less precise results. Bytecode can be provided using sonar.java.libraries property</p>
  </blockquote>