Change gradle memory/workers to avoid OOM in CB (#2910)

Author: jicelhay

config/nom_build.py

@@ -56,7 +56,7 @@ class GradleFlag:
 # nom_build), run ./nom_build --help.
 #
 # DO NOT EDIT THIS FILE BY HAND
-org.gradle.jvmargs=-Xmx2048m
+org.gradle.jvmargs=-Xmx4096m
 org.gradle.caching=true
 org.gradle.parallel=true
 """

gradle.properties

@@ -7,7 +7,7 @@
 # nom_build), run ./nom_build --help.
 #
 # DO NOT EDIT THIS FILE BY HAND
-org.gradle.jvmargs=-Xmx2048m
+org.gradle.jvmargs=-Xmx4096m
 org.gradle.caching=true
 org.gradle.parallel=true
 mavenUrl=

release/cloudbuild-nomulus.yaml

@@ -14,6 +14,7 @@ steps:
   env: [ 'GRADLE_USER_HOME=/workspace/cloudbuild-caches' ]
   args: ['./gradlew',
          'test',
+         '--max-workers=8',
          '-PskipDockerIncompatibleTests=true',
          '-PmavenUrl=gcs://domain-registry-maven-repository/maven',
          '-PpluginsUrl=gcs://domain-registry-maven-repository/plugins'