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After upgrading to Eclipse/Spring Tool Suite 4.11.0, Gradle refresh on a Java 15 project fails to work and reports the error Unsupported class file major version 60 (= Java 16), even though Java 15 is set up in Preferences -> Java -> Installed JREs.

Gradle Buildship is installed as Eclipse plugin.

Markus Pscheidt
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1 Answers1

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Solution is to explicitly set the Java version in Gradle preferences.

enter image description here

Additional info: Eclipse itself starts up with an embedded Java 16 as per SpringToolSuite4.ini:

-startup
plugins/org.eclipse.equinox.launcher_1.6.200.v20210416-2027.jar

The Java version that Eclipse is started with, should not influence the Gradle Buildship plugin, but it does.

Markus Pscheidt
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