feat: use java 17 as baseline (#2271)

Signed-off-by: Attila Mészáros <csviri@gmail.com>

Author: csviri

bootstrapper-maven-plugin/src/main/resources/templates/pom.xml

@@ -11,7 +11,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <java.version>11</java.version>
+        <java.version>17</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <josdk.version>{{josdkVersion}}</josdk.version>

pom.xml

@@ -36,7 +36,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <java.version>11</java.version>
+        <java.version>17</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <sonar.organization>java-operator-sdk</sonar.organization>

sample-operators/leader-election/pom.xml

@@ -71,7 +71,7 @@
                 <version>${jib-maven-plugin.version}</version>
                 <configuration>
                     <from>
-                        <image>gcr.io/distroless/java:11</image>
+                        <image>gcr.io/distroless/java17-debian11</image>
                     </from>
                     <to>
                         <image>leader-election-operator</image>

sample-operators/mysql-schema/pom.xml

@@ -98,7 +98,7 @@
                 <version>${jib-maven-plugin.version}</version>
                 <configuration>
                     <from>
-                        <image>gcr.io/distroless/java:11</image>
+                        <image>gcr.io/distroless/java17-debian11</image>
                     </from>
                     <to>
                         <image>mysql-schema-operator</image>

sample-operators/tomcat-operator/pom.xml

@@ -100,7 +100,7 @@
                 <version>${jib-maven-plugin.version}</version>
                 <configuration>
                     <from>
-                        <image>gcr.io/distroless/java:11</image>
+                        <image>gcr.io/distroless/java17-debian11</image>
                     </from>
                     <to>
                         <image>tomcat-operator</image>

sample-operators/webpage/pom.xml

@@ -71,7 +71,7 @@
                 <version>${jib-maven-plugin.version}</version>
                 <configuration>
                     <from>
-                        <image>gcr.io/distroless/java:11</image>
+                        <image>gcr.io/distroless/java17-debian11</image>
                     </from>
                     <to>
                         <image>webpage-operator</image>