Optimize header validation loop #6887

Job	Run time
build	5m 54s
copyright	3m 25s
shellcheck	3m 9s
checkstyle	3m 56s
tests/tck-cdi	17m 10s
tests/core	10m 52s
tests/tck-rest	14m 38s
tests/it	14m 31s
spotbugs/core	10m 49s
tests/dbclient	8m 43s
tests/tck-others	16m 46s
tests/native-image-mp-1-linux	6m 36s
spotbugs/integrations	7m 23s
tests/dbclient-oracle	17m 53s
tests/native-image-mp-2-linux	11m 23s
spotbugs/others	12m 29s
tests/others	12m 2s
tests/native-image-mp-3-linux	6m 32s
archetypes/r1-jar	6m 40s
tests/native-image-se-1-linux	6m 38s
archetypes/r2-jar	6m 39s
docs	4m 58s
tests/native-image-inject-linux	6m 36s
examples/linux	9m 45s
archetypes/r3-jar	6m 2s
tests/native-image-mp-1-macos	7m 26s
examples/macos	9m 9s
tests/native-image-mp-2-macos	22m 23s
archetypes/r4-jar	6m 45s
javadoc (core)	6m 47s
tests/native-image-mp-3-macos	11m 20s
archetypes/r5-jar	5m 8s
javadoc (integrations)	5m 18s
tests/native-image-se-1-macos	6m 27s
javadoc (others)	7m 46s
archetypes/legacy	4m 30s
tests/native-image-inject-macos	6m 9s
tests/packaging-jar-linux	6m 48s
quickstarts/linux	11m 36s
tests/packaging-jlink-linux	8m 50s
quickstarts/macos	12m 40s
tests/packaging-jar-macos	4m 56s
tests/packaging-jlink-macos	6m 28s
tests/results	11s
gate	1s
	6h 22m 7s

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