gradle: fix toolchains test

The test was incorrectly comparing the full value of the java.version
system property returned by the JVM at runtime with the major version of
the Nix package.

After this change the test does a prefix comparison between the system
property value and the nix package version, e.g. it will check whether
23.0.2+7 (Nix package version) starts with 23.0.2 (system property).

Furthermore the test now logs the expected and actual values in case of
a missmatch.

0 files changed, 0 insertions, 0 deletions