Merge branch 'master' into upgrade-beam

theodolite-benchmarks/beam-commons/build.gradle

@@ -3,7 +3,7 @@ plugins {
 }
 
 repositories {
-  jcenter()
+  mavenCentral()
   maven {
     url "https://oss.sonatype.org/content/repositories/snapshots/"
   }

theodolite-benchmarks/buildSrc/src/main/groovy/theodolite.beam.gradle

@@ -9,7 +9,7 @@ plugins {
 tasks.distZip.enabled = false
 
 repositories {
-    jcenter()
+    mavenCentral()
     maven {
         url "https://oss.sonatype.org/content/repositories/snapshots/"
     }

theodolite-benchmarks/buildSrc/src/main/groovy/theodolite.flink.gradle

@@ -25,7 +25,7 @@ ext {
 }
 
 repositories {
-  jcenter()
+  mavenCentral()
   maven {
     url "https://oss.sonatype.org/content/repositories/snapshots/"
   }

theodolite-benchmarks/buildSrc/src/main/groovy/theodolite.kstreams.gradle

@@ -9,7 +9,7 @@ plugins {
 tasks.distZip.enabled = false
 
 repositories {
-  jcenter()
+  mavenCentral()
   maven {
     url "https://oss.sonatype.org/content/repositories/snapshots/"
   }

theodolite-benchmarks/buildSrc/src/main/groovy/theodolite.load-generator.gradle

@@ -9,7 +9,7 @@ plugins {
 tasks.distZip.enabled = false
 
 repositories {
-  jcenter()
+  mavenCentral()
   maven {
     url "https://oss.sonatype.org/content/repositories/snapshots/"
   }

theodolite-benchmarks/flink-commons/build.gradle

@@ -8,7 +8,7 @@ ext {
 }
 
 repositories {
-  jcenter()
+  mavenCentral()
   maven {
     url "https://oss.sonatype.org/content/repositories/snapshots/"
   }

theodolite-benchmarks/kstreams-commons/build.gradle

@@ -3,7 +3,7 @@ plugins {
 }
 
 repositories {
-  jcenter()
+  mavenCentral()
   maven {
     url "https://oss.sonatype.org/content/repositories/snapshots/"
   }

theodolite-benchmarks/load-generator-commons/build.gradle

@@ -3,7 +3,7 @@ plugins {
 }
 
 repositories {
-  jcenter()
+  mavenCentral()
   maven {
     url "https://oss.sonatype.org/content/repositories/snapshots/"
   }