Migration of the che server codebase to Java 11

.ci/cico_common.sh

@@ -18,15 +18,15 @@ function die_with() {
 }
 
 function getCurrentVersion() {
-    echo $(scl enable rh-maven33 "mvn help:evaluate -Dexpression=project.version -q -DforceStdout")
+    echo $(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
 }
 
 function getReleaseVersion() {
     echo "$(echo $1 | cut -d'-' -f1)" #cut SNAPSHOT form the version name
 }
 
 function setReleaseVersionInMavenProject(){
-    scl enable rh-maven33 "mvn versions:set -DgenerateBackupPoms=false -DnewVersion=$1"
+    mvn versions:set -DgenerateBackupPoms=false -DnewVersion=$1
 }
 
 load_jenkins_vars() {
@@ -59,9 +59,12 @@ load_mvn_settings_gpg_key() {
 
 install_deps(){
     set +x
-    yum -y update
-    yum -y install centos-release-scl-rh java-1.8.0-openjdk-devel git 
-    yum -y install rh-maven33
+    yum -y update &&  yum -y install java-11-openjdk-devel git
+    mkdir -p /opt/apache-maven && curl -sSL https://downloads.apache.org/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz | tar -xz --strip=1 -C /opt/apache-maven
+    export JAVA_HOME=/usr/lib/jvm/java-11-openjdk
+    export PATH="/usr/lib/jvm/java-11-openjdk:/opt/apache-maven/bin:/usr/bin:${PATH:-/bin:/usr/bin}"
+    export JAVACONFDIRS="/etc/java${JAVACONFDIRS:+:}${JAVACONFDIRS:-}"
+    export M2_HOME="/opt/apache-maven"
     yum install -y yum-utils device-mapper-persistent-data lvm2
     yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
     curl -sL https://rpm.nodesource.com/setup_10.x | bash -
@@ -73,9 +76,9 @@ install_deps(){
 mvn_build() {
     set -x
     if [[ $DO_NOT_IGNORE_TESTS == "true" ]]; then
-        scl enable rh-maven33 'mvn clean install -U -Pintegration -Dmaven.test.failure.ignore=false'
+        mvn clean install -U -Pintegration -Dmaven.test.failure.ignore=false
     else
-        scl enable rh-maven33 'mvn clean install -U -Pintegration'
+        mvn clean install -U -Pintegration
     fi
     if [[ $? -eq 0 ]]; then
         echo 'Build Success!'
@@ -87,7 +90,7 @@ mvn_build() {
 mvn_deploy() {
     set -x
     echo 'Going to deploy artifacts'
-    scl enable rh-maven33 "mvn clean deploy -DcreateChecksum=true  -Dgpg.passphrase=$CHE_OSS_SONATYPE_PASSPHRASE"
+    mvn clean deploy -DcreateChecksum=true  -Dgpg.passphrase=$CHE_OSS_SONATYPE_PASSPHRASE
     if [[ $? -eq 0 ]]; then
         echo 'Deploy Success!'
     else
@@ -197,11 +200,11 @@ releaseProject() {
     echo "Release version ${tag}"
     setReleaseVersionInMavenProject ${tag}
     git commit -asm "Release version ${tag}"
-    scl enable rh-maven33 'mvn clean install -U -DskipTests=true -Dskip-validate-sources'
+    mvn clean install -U -DskipTests=true -Dskip-validate-sources
     if [[ $? -eq 0 ]]; then
         echo 'Build Success!'
         echo 'Going to deploy artifacts'
-        scl enable rh-maven33 "mvn clean deploy -Pcodenvy-release -DcreateChecksum=true -DskipTests=true -Dskip-validate-sources -Dgpg.passphrase=$CHE_OSS_SONATYPE_PASSPHRASE -Darchetype.test.skip=true -Dversion.animal-sniffer.enforcer-rule=1.16"
+        mvn clean deploy -Pcodenvy-release -DcreateChecksum=true -DskipTests=true -Dskip-validate-sources -Dgpg.passphrase=$CHE_OSS_SONATYPE_PASSPHRASE -Darchetype.test.skip=true -Dversion.animal-sniffer.enforcer-rule=1.16
     else
         die_with 'Build Failed!'
     fi

assembly/assembly-che-tomcat8/src/assembly/bin/setenv.sh

@@ -14,7 +14,7 @@
 [ -z "${CHE_LOCAL_CONF_DIR}" ]  && CHE_LOCAL_CONF_DIR="${CATALINA_HOME}/conf/"
 
 #Global JAVA options
-[ -z "${JAVA_OPTS}" ]  && JAVA_OPTS="-Xms256m -Xmx2048m -Djava.security.egd=file:/dev/./urandom"
+[ -z "${JAVA_OPTS}" ]  && JAVA_OPTS="-XX:MaxRAMPercentage=85.0 "
 
 #Global LOGS DIR
 [ -z "${CHE_LOGS_DIR}" ]  && CHE_LOGS_DIR="$CATALINA_HOME/logs"

deploy/kubernetes/helm/che/templates/configmap.yaml

@@ -72,7 +72,7 @@ data:
   CHE_OAUTH_OPENSHIFT_CLIENTSECRET: {{ .Values.global.openShiftClientSecret | quote}}
   CHE_OAUTH_OPENSHIFT_OAUTH__ENDPOINT: {{ .Values.global.openShiftOAuthEndpoint | quote}}
   CHE_OAUTH_OPENSHIFT_VERIFY__TOKEN__URL: {{ .Values.global.openShiftVerifyTokenUrl | quote}}
-  JAVA_OPTS: "-XX:MaxRAMFraction=2 -XX:+UseParallelGC -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=20 -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -Dsun.zip.disableMemoryMapping=true -Xms20m "
+  JAVA_OPTS: "-XX:MaxRAMPercentage=85.0 "
   CHE_WORKSPACE_AUTO_START: "false"
 {{- if .Values.global.tls.enabled }}
   CHE_INFRA_KUBERNETES_INGRESS_ANNOTATIONS__JSON: '{"kubernetes.io/ingress.class": "nginx", "kubernetes.io/tls-acme": "true", "{{ .Values.global.ingressAnnotationsPrefix }}ingress.kubernetes.io/rewrite-target": "/$1","{{ .Values.global.ingressAnnotationsPrefix }}ingress.kubernetes.io/ssl-redirect": "true","{{ .Values.global.ingressAnnotationsPrefix }}ingress.kubernetes.io/proxy-connect-timeout": "3600","{{ .Values.global.ingressAnnotationsPrefix }}ingress.kubernetes.io/proxy-read-timeout": "3600"}'

dockerfiles/che/Dockerfile

@@ -16,7 +16,7 @@ ARG CHE_WORKSPACE_LOADER_VERSION=next
 FROM ${CHE_DASHBOARD_ORGANIZATION}/che-dashboard:${CHE_DASHBOARD_VERSION} as che_dashboard_base
 FROM ${CHE_WORKSPACE_LOADER_ORGANIZATION}/che-workspace-loader:${CHE_WORKSPACE_LOADER_VERSION} as che_workspace_loader_base
 
-FROM openjdk:8u252-jre-slim
+FROM openjdk:11-jre-slim
 ENV LANG=C.UTF-8
 RUN echo "%root ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers && rm -rf /tmp/*
 EXPOSE 8000 8080

pom.xml

@@ -103,7 +103,7 @@
         <org.eclipse.persistence.eclipselink.version>2.7.5</org.eclipse.persistence.eclipselink.version>
         <org.eclipse.persistence.version>2.2.0</org.eclipse.persistence.version>
         <org.eclipse.sisu.version>0.3.0</org.eclipse.sisu.version>
-        <org.everrest.version>1.13.5</org.everrest.version>
+        <org.everrest.version>1.14.4</org.everrest.version>
         <org.flyway.version>4.2.0</org.flyway.version>
         <org.hamcrest.version>1.3</org.hamcrest.version>
         <org.jgroups.kubernetes.version>1.0.13.Final</org.jgroups.kubernetes.version>

tests/.infra/centos-ci/functional_tests_utils.sh

@@ -7,7 +7,7 @@
 # http://www.eclipse.org/legal/epl-v10.html
 
 buildAndDeployArtifacts() {
-  scl enable rh-maven33 'mvn clean install -U -Pintegration'
+  mvn clean install -U -Pintegration
   if [[ $? -eq 0 ]]; then
     echo 'Build Success!'
     echo 'Going to deploy artifacts'
@@ -128,8 +128,11 @@ function installStartDocker() {
 }
 
 function installMvn() {
-  yum install --assumeyes -d1 centos-release-scl
-  yum install --assumeyes -d1 rh-maven33
+    mkdir -p /opt/apache-maven && curl -sSL https://downloads.apache.org/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz | tar -xz --strip=1 -C /opt/apache-maven
+    export JAVA_HOME=/usr/lib/jvm/java-11-openjdk
+    export PATH="/usr/lib/jvm/java-11-openjdk:/opt/apache-maven/bin:/usr/bin:${PATH:-/bin:/usr/bin}"
+    export JAVACONFDIRS="/etc/java${JAVACONFDIRS:+:}${JAVACONFDIRS:-}"
+    export M2_HOME="/opt/apache-maven"
 }
 
 function installNodejs() {
@@ -172,8 +175,7 @@ function installDependencies() {
     bzip2 \
     golang \
     make \
-    java-1.8.0-openjdk \
-    java-1.8.0-openjdk-devel
+    java-11-openjdk-devel
   installMvn
   installNodejs
   insalllYarn
@@ -383,7 +385,6 @@ function setupEnvs() {
     QUAY_ECLIPSE_CHE_USERNAME \
     QUAY_ECLIPSE_CHE_PASSWORD)"
 
-  export PATH=$PATH:/opt/rh/rh-maven33/root/bin
 }
 
 function configureGithubTestUser() {

tests/.infra/crw-ci/pr-check/k8s/Jenkinsfile

@@ -11,7 +11,8 @@ pipeline {
     }
 
     environment {
-        PATH = "/tmp:/qa/tools/opt/apache-maven-3.5.4/bin:$PATH"
+        PATH = "/tmp:/qa/tools/opt/apache-maven-3.6.1/bin:/qa/tools/opt/openjdk-11.0.6.10/bin:$PATH"
+        JAVA_HOME="/qa/tools/opt/openjdk-11.0.6.10"
         JENKINS_BUILD = "true"
 
         DEVFILE_PATH = "${WORKSPACE}/test-workspace-devfile.yaml"
@@ -78,6 +79,7 @@ pipeline {
                     } else {
                         mutableCheImageTag = cheImageTag
                     }
+                    sh "sudo yum install -y glibc.i686 libfreetype.so.6 libfontconfig.so.1 libstdc++.so.6"
                 }
             }
         }