more performance improvements, and removed dependency on jctools

Author: robertroeser

build.gradle

@@ -34,7 +34,6 @@ subprojects {
     ext['netty.version'] = '4.1.29.Final'
     ext['netty-boringssl.version'] = '2.0.18.Final'
     ext['hdrhistogram.version'] = '2.1.10'
-    ext['jctool.version'] = '2.1.2'
     ext['mockito.version'] = '2.23.0'
     ext['slf4j.version'] = '1.7.25'
     ext['jmh.version'] = '1.21'
@@ -56,7 +55,6 @@ subprojects {
             dependency "io.micrometer:micrometer-core:${ext['micrometer.version']}"
             dependency "org.assertj:assertj-core:${ext['assertj.version']}"
             dependency "org.hdrhistogram:HdrHistogram:${ext['hdrhistogram.version']}"
-            dependency "org.jctools:jctools-core:${ext['jctool.version']}"
             dependency "org.mockito:mockito-core:${ ext['mockito.version']}"
             dependency "org.slf4j:slf4j-api:${ext['slf4j.version']}"