Mechanism to calculate checksums for violations is unstable

[INFO]  Sensor SurefireSensor done: 2 ms
[INFO]  Execute decorators...
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Can not execute Sonar

Embedded error: Unable to calculate checksums
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: Can not execute Sonar
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:284)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
	at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:618)
	at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
	at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
	at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
	at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.MojoExecutionException: Can not execute Sonar
	at org.codehaus.mojo.sonar.Bootstraper.executeMojo(Bootstraper.java:103)
	at org.codehaus.mojo.sonar.Bootstraper.start(Bootstraper.java:79)
	at org.codehaus.mojo.sonar.SonarMojo.execute(SonarMojo.java:88)
	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
	... 17 more
Caused by: org.sonar.api.utils.SonarException: Unable to calculate checksums
	at org.sonar.plugins.core.timemachine.ViolationPersisterDecorator.getChecksums(ViolationPersisterDecorator.java:120)
	at org.sonar.plugins.core.timemachine.ViolationPersisterDecorator.getChecksums(ViolationPersisterDecorator.java:108)
	at org.sonar.plugins.core.timemachine.ViolationPersisterDecorator.decorate(ViolationPersisterDecorator.java:79)
	at org.sonar.batch.phases.DecoratorsExecutor.decorateResource(DecoratorsExecutor.java:83)
	at org.sonar.batch.phases.DecoratorsExecutor.decorateResource(DecoratorsExecutor.java:75)
	at org.sonar.batch.phases.DecoratorsExecutor.decorateResource(DecoratorsExecutor.java:75)
	at org.sonar.batch.phases.DecoratorsExecutor.execute(DecoratorsExecutor.java:66)
	at org.sonar.batch.phases.Phases.execute(Phases.java:73)
	at org.sonar.batch.ProjectBatch.execute(ProjectBatch.java:61)
	at org.sonar.batch.Batch.analyzeModule(Batch.java:149)
	at org.sonar.batch.Batch.analyzeModule(Batch.java:140)
	at org.sonar.batch.Batch.analyzeModule(Batch.java:140)
	at org.sonar.batch.Batch.analyzeModules(Batch.java:106)
	at org.sonar.batch.Batch.execute(Batch.java:66)
	at org.sonar.maven.SonarMojo.executeBatch(SonarMojo.java:142)
	at org.sonar.maven.SonarMojo.execute(SonarMojo.java:133)
	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
	at org.codehaus.mojo.sonar.Bootstraper.executeMojo(Bootstraper.java:98)
	... 21 more
Caused by: sun.io.MalformedInputException
	at sun.io.ByteToCharUTF8.convert(ByteToCharUTF8.java:294)
	at sun.nio.cs.StreamDecoder$ConverterSD.convertInto(StreamDecoder.java:316)
	at sun.nio.cs.StreamDecoder$ConverterSD.implRead(StreamDecoder.java:366)
	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:252)
	at java.io.InputStreamReader.read(InputStreamReader.java:212)
	at java.io.BufferedReader.fill(BufferedReader.java:157)
	at java.io.BufferedReader.readLine(BufferedReader.java:320)
	at java.io.BufferedReader.readLine(BufferedReader.java:383)
	at org.apache.commons.io.IOUtils.readLines(IOUtils.java:502)
	at org.apache.commons.io.IOUtils.readLines(IOUtils.java:457)
	at org.sonar.plugins.core.timemachine.ViolationPersisterDecorator.getChecksums(ViolationPersisterDecorator.java:115)
	... 38 more