Toolchains manual improvements #820

Job	Run time
Verify / ubuntu-latest jdk-17-zulu 3.9.9	2m 13s
Verify / setup-matrix	3s
Verify / ubuntu-latest jdk-17-zulu 3.6.3	1m 48s
Verify / ubuntu-latest jdk-17-zulu 3.9.9	7s
Verify / ubuntu-latest jdk-17-zulu 4.0.0-beta-4	2m 30s
Verify / ubuntu-latest jdk-21-zulu 3.6.3	1m 47s
Verify / ubuntu-latest jdk-21-zulu 3.9.9	2m 0s
Verify / ubuntu-latest jdk-21-zulu 4.0.0-beta-4	2m 26s
Verify / ubuntu-latest jdk-8-zulu 3.6.3	1m 32s
Verify / ubuntu-latest jdk-8-zulu 3.9.9	1m 45s
Verify / windows-latest jdk-17-zulu 3.6.3	3m 6s
Verify / windows-latest jdk-17-zulu 3.9.9	3m 18s
Verify / windows-latest jdk-17-zulu 4.0.0-beta-4	4m 36s
Verify / windows-latest jdk-21-zulu 3.6.3	3m 14s
Verify / windows-latest jdk-21-zulu 3.9.9	3m 21s
Verify / windows-latest jdk-21-zulu 4.0.0-beta-4	4m 11s
Verify / windows-latest jdk-8-zulu 3.6.3	2m 34s
Verify / windows-latest jdk-8-zulu 3.9.9	2m 36s
Verify / macos-latest jdk-17-zulu 3.6.3	1m 20s
Verify / macos-latest jdk-17-zulu 3.9.9	1m 19s
Verify / macos-latest jdk-17-zulu 4.0.0-beta-4	1m 54s
Verify / macos-latest jdk-21-zulu 3.6.3	1m 37s
Verify / macos-latest jdk-21-zulu 3.9.9	1m 21s
Verify / macos-latest jdk-21-zulu 4.0.0-beta-4	1m 47s
Verify / macos-latest jdk-8-zulu 3.6.3	2m 26s
Verify / macos-latest jdk-8-zulu 3.9.9	1m 26s
	56m 17s

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