use clean_dir instead of remove_dir on installation directory for Java easyblock

[smoors]

(created using eb --new-pr)

[smoors]

Test report by @smoors

Overview of tested easyconfigs (in order)

• SUCCESS Java-17.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node600.hydra.os - Linux Rocky Linux 9.6, x86_64, AMD EPYC 9384X 32-Core Processor (zen4), Python 3.9.21
See https://gist.github.com/smoors/147e935c8af08614379058c5e73154fd for a full test report.

[smoors]

Test report by @smoors

Overview of tested easyconfigs (in order)

• SUCCESS Java-21.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node600.hydra.os - Linux Rocky Linux 9.6, x86_64, AMD EPYC 9384X 32-Core Processor (zen4), Python 3.9.21
See https://gist.github.com/smoors/9575599c9b5e67a51435acdb16da49e0 for a full test report.

[smoors]

Test report by @smoors

Overview of tested easyconfigs (in order)

• SUCCESS Java-23.0.2.eb
• SUCCESS Java-23.eb

Build succeeded for 2 out of 2 (1 easyconfigs in total)
node604.hydra.os - Linux Rocky Linux 9.6, x86_64, AMD EPYC 9384X 32-Core Processor (zen4), Python 3.9.21
See https://gist.github.com/smoors/dead4afb4f1ec15e8c8d97d32bad72da for a full test report.