Upgraded Gradle to 4.5.1

Gradle 2.3 was no longer supported by IntelliJ IDEA.

Upgrading to Gradle 4.5.1, which is the same version currently used by
MarkLogic Java Client API. (While it is far from the the most recent
version, it seemed like a reasonable choice)

Author: froderystad-digdir

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
-#Mon Jun 26 13:52:27 PDT 2017
+#Wed Jun 23 12:05:02 CEST 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.5.1-bin.zip

gradle/wrapper/gradle-wrapper.properties

@@ -39,7 +39,7 @@ dependencies {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '2.4'
+    gradleVersion = '4.5.1'
 }
 
 jmh {

gradlew

@@ -77,7 +77,7 @@ task sourcesJar(type: Jar, dependsOn: classes) {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '2.4'
+    gradleVersion = '4.5.1'
 }
 
 javadoc {

gradlew.bat

@@ -1,6 +1,6 @@
-#Tue Aug 11 11:16:27 CEST 2015
+#Wed Jun 23 12:05:02 CEST 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.5.1-bin.zip