SonarQube unable to analyze project developed using older version of Java

SonarQube Server / Community Build
1

SonarQube unable to analyze projects built using lower version of Java. We are facing issue given below.

Sonar Configurations :
SonarQube Scanner 4.2.0.1873
Java 1.8.0_272 Red Hat, Inc. (64-bit)
SonarQube server 8.5.1

Source code file using java 1.6
added argument for java version mismatch : -Dsonar.java.source=1.6

ERROR :
Exception in thread “main” java.lang.UnsupportedClassVersionError: org/sonarsource/scanner/cli/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:808)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142

2

Hi,

Welcome to the community!

You can compile to whatever version you like, but you need to analyze with at least Java 8.

 
HTH,
Ann

3

Hi

Thank you for your quick response.

As mentioned in my query, we are using Java 1.8.0_272 in our environment where sonar scanner is running.

Can you please suggest on this further?

Thanks
Swarnab

4

Hi Swarnab,

Is $JAVA_HOME set in your environment? And if so, does it point to a lower version than Java 8? When the scanner CLI finds JAVA_HOME it uses that instead of the embedded JVM.

 
Ann

5

Hi G Ann Campbell,

I am having the same issue and my JAVA_HOME is set to Java 8. I do have another java variable JAVA_HOME_7_X64 that is set to 7. Does it explicitly look for JAVA_HOME?

Thanks,
Ryan

6

Hi Ryan,

How are you analyzing? Maven? Gradle? Something else?

 
Ann

7

Hello,

I was using the CLI because unfortunately this project uses Ant to build. I figured out that it was looking for JAVA_HOME__X64 by running the pipeline in debug mode.

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