My Eclipse 4.9 runs on java.version=1.8.0_45 which is Java 8.
When I tried to install it via the Help - Eclipse Market route, I got this error:
Unable to read repository at https://eclipse-uc.sonarlint.org/content.xml.
sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
I then downloaded the SonarLint plugin 10.6 zip file and tried to install it via the Help - Install New Software route. I got errors like the following:
An error occurred while collecting items to be installed
session context was:(profile=WRWB.Win32, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Problems downloading artifact: osgi.bundle,org.sonarlint.eclipse.buildship,10.6.0.82217.
Error reading signed content:C:\Users\xxx\AppData\Local\Temp\signatureFile6054247806910596857.jar
An error occurred while processing the signatures for the file: C:\Users\xxx\AppData\Local\Temp\signatureFile6054247806910596857.jar
Problems downloading artifact: osgi.bundle,org.sonarlint.eclipse.cdt,10.6.0.82217.
Error reading signed content:C:\Users\xxx\AppData\Local\Temp\signatureFile6098684966407041738.jar
An error occurred while processing the signatures for the file: C:\Users\xxx\AppData\Local\Temp\signatureFile6098684966407041738.jar
Problems downloading artifact: osgi.bundle,org.sonarlint.eclipse.core,10.6.0.82217.
Error reading signed content:C:\Users\xxx\AppData\Local\Temp\signatureFile5663926588007112786.jar
An error occurred while processing the signatures for the file: C:\Users\xxx\AppData\Local\Temp\signatureFile5663926588007112786.jar
Problems downloading artifact: org.eclipse.update.feature,org.sonarlint.eclipse.feature,10.6.0.82217.
Error reading signed content:C:\Users\xxx\AppData\Local\Temp\signatureFile8286835961913214356.jar
An error occurred while processing the signatures for the file: C:\Users\xxx\AppData\Local\Temp\signatureFile8286835961913214356.jar
Problems downloading artifact: osgi.bundle,org.sonarlint.eclipse.jdt,10.6.0.82217.
Is there a compatibility problem here? I was able to install the SonarLint plugin 10.6 zip file on Eclipse 4.22. So the zip file is good.