check dependency in build.gradle.kts is not included
Start war
$ ./gradlew clean build; java -jar build/libs/jspel-0.0.1-SNAPSHOT.war
Warm up
$ ab -n 1000 -c 1 'http://localhost:8080/hello'
Test
$ ab -n 1000 -c 50 'http://localhost:8080/hello'
quit java Process with Ctrl-C
uncomment dependency in build.gradle.kts implementation("net.sargue:java-time-jsptags:2.0.0")
Results without java-time-jsptags: 18379.65 request/s
Results with java-time-jsptags: 512.50 request/s