Error 500 during Sonar runner execution on Jenkins
<p>I am getting the below error when running sonarqube standalone analysis on Jenkins. The sonarqube scanner is able to identify the files to be analyzed and is able to analyze them fine, but the issue is when it is trying to publish the project to dashboard.</p>

<p>When I open the URL <a href="http://vv123456:9000/api/ce/submit?projectKey=pkey&amp;projectName=pname" rel="noreferrer">http://vv123456:9000/api/ce/submit?projectKey=pkey&amp;projectName=pname</a> in browser, it says <em>"{"errors":[{"msg":"HTTP method POST is required"}]}"</em>, which means the sonarqube webservice is fine.</p>

<p><strong>Error on Jenkins build:</strong></p>

<pre><code>ERROR: Error during Sonar runner execution
org.sonar.runner.impl.RunnerException: Unable to execute Sonar
    at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:91)
    at org.sonar.runner.impl.BatchLauncher$1.run(BatchLauncher.java:75)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.sonar.runner.impl.BatchLauncher.doExecute(BatchLauncher.java:69)
    at org.sonar.runner.impl.BatchLauncher.execute(BatchLauncher.java:50)
    at org.sonar.runner.api.EmbeddedRunner.doExecute(EmbeddedRunner.java:102)
    at org.sonar.runner.api.Runner.execute(Runner.java:100)
    at org.sonar.runner.Main.executeTask(Main.java:70)
    at org.sonar.runner.Main.execute(Main.java:59)
    at org.sonar.runner.Main.main(Main.java:53)
Caused by: org.sonarqube.ws.client.HttpException: Error 500 on [http://vv123456:9000/api/ce/submit?projectKey=pkey&amp;projectName=pname][1]
    at org.sonarqube.ws.client.BaseResponse.failIfNotSuccessful(BaseResponse.java:34)
    at org.sonar.batch.bootstrap.BatchWsClient.failIfUnauthorized(BatchWsClient.java:99)
    at org.sonar.batch.bootstrap.BatchWsClient.call(BatchWsClient.java:69)
    at org.sonar.batch.report.ReportPublisher.upload(ReportPublisher.java:172)
    at org.sonar.batch.report.ReportPublisher.execute(ReportPublisher.java:127)
    at org.sonar.batch.phases.PublishPhaseExecutor.publishReportJob(PublishPhaseExecutor.java:64)
    at org.sonar.batch.phases.PublishPhaseExecutor.executeOnRoot(PublishPhaseExecutor.java:51)
    at org.sonar.batch.phases.AbstractPhaseExecutor.execute(AbstractPhaseExecutor.java:86)
    at org.sonar.batch.scan.ModuleScanContainer.doAfterStart(ModuleScanContainer.java:192)
    at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:142)
    at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:127)
    at org.sonar.batch.scan.ProjectScanContainer.scan(ProjectScanContainer.java:241)
    at org.sonar.batch.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:236)
    at org.sonar.batch.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:226)
    at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:142)
    at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:127)
    at org.sonar.batch.task.ScanTask.execute(ScanTask.java:47)
    at org.sonar.batch.task.TaskContainer.doAfterStart(TaskContainer.java:86)
    at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:142)
    at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:127)
    at org.sonar.batch.bootstrap.GlobalContainer.executeTask(GlobalContainer.java:106)
    at org.sonar.batch.bootstrapper.Batch.executeTask(Batch.java:119)
    at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:79)
    at org.sonar.runner.batch.IsolatedLauncher.execute(IsolatedLauncher.java:48)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:87)
    ... 9 more
</code></pre>