Merge pull request #3125 from codefromthecrypt/java-ll

Updates to minimum Java 11

Author: k8s-ci-robot

extended/pom.xml

@@ -114,8 +114,7 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>8</source>
-                    <target>8</target>
+                    <release>${java.version}</release>
                 </configuration>
             </plugin>
         </plugins>

extended/src/main/java/io/kubernetes/client/extended/event/legacy/LegacyEventBroadcaster.java

@@ -121,7 +121,7 @@ public void shutdown() {
   private void recordToSink(CoreV1Event event) throws InterruptedException {
     Optional<MutablePair<CoreV1Event, V1Patch>> eventAndPatch =
         this.eventCorrelator.correlate(event);
-    if (!eventAndPatch.isPresent()) {
+    if (eventAndPatch.isEmpty()) {
       // skip
       return;
     }

extended/src/test/java/io/kubernetes/client/extended/event/EventCorrelatorTest.java

@@ -163,7 +163,7 @@ public void testEventCorrelate() throws InterruptedException {
       event.setFirstTimestamp(now);
       event.setLastTimestamp(now);
       Optional<MutablePair<CoreV1Event, V1Patch>> result = correlator.correlate(event);
-      if (!result.isPresent()) {
+      if (result.isEmpty()) {
         correlator.updateState(event);
       }
     }
@@ -173,7 +173,7 @@ public void testEventCorrelate() throws InterruptedException {
     newEvent.setLastTimestamp(now);
     Optional<MutablePair<CoreV1Event, V1Patch>> result = correlator.correlate(newEvent);
 
-    assertEquals(expectedSkip, !result.isPresent());
+    assertEquals(expectedSkip, result.isEmpty());
     if (!expectedSkip) {
       CoreV1Event correlatedEvent = result.get().getLeft();
       correlatedEvent.setMetadata(new V1ObjectMetaBuilder().withName("").withNamespace("").build());

kubernetes/pom.xml

@@ -114,6 +114,9 @@
           </execution>
         </executions>
         <configuration>
+          <!-- TODO: workaround until openapi stops generating a dependency on
+               the un-exported module: com.google.gson.internal.bind.util -->
+          <legacyMode>true</legacyMode>
           <tags>
             <tag>
               <name>http.response.details</name>

pom.xml

@@ -36,7 +36,7 @@
   </scm>
 
   <properties>
-    <java.version>1.8</java.version>
+    <java.version>11</java.version>
     <maven.compiler.source>${java.version}</maven.compiler.source>
     <maven.compiler.target>${java.version}</maven.compiler.target>
     <maven-plugin-version>1.0.0</maven-plugin-version>

proto/pom.xml

@@ -34,8 +34,7 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>8</source>
-                    <target>8</target>
+                    <release>${java.version}</release>
                 </configuration>
             </plugin>
 		</plugins>

spring-aot/pom.xml

@@ -14,6 +14,8 @@
     </parent>
     <properties>
         <spring.boot.version>3.0.0</spring.boot.version>
+        <!-- Spring Boot 3.x is minimum JRE 17 -->
+        <java.version>17</java.version>
     </properties>
     <dependencies>
         <dependency>
@@ -66,8 +68,7 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>17</source>
-                    <target>17</target>
+                    <release>${java.version}</release>
                 </configuration>
             </plugin>
         </plugins>

spring/pom.xml

@@ -13,6 +13,10 @@
     <relativePath>../pom.xml</relativePath>
   </parent>
 
+  <properties>
+    <!-- Spring Boot 3.x is minimum JRE 17 -->
+    <java.version>17</java.version>
+  </properties>
 
   <dependencies>
     <dependency>
@@ -91,8 +95,7 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
-          <source>8</source>
-          <target>8</target>
+          <release>${java.version}</release>
         </configuration>
       </plugin>
     </plugins>

util/pom.xml

@@ -140,8 +140,7 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>8</source>
-                    <target>8</target>
+                    <release>${java.version}</release>
                 </configuration>
             </plugin>
         </plugins>

util/src/main/java/io/kubernetes/client/Discovery.java

@@ -97,7 +97,7 @@ public Set<APIResource> groupResourcesByName(
     // parse raw discovery responses to APIResource for better readability
     Set<APIResource> resources =
         resourceList.getResources().stream()
-            .filter(r -> !getSubResourceNameIfPossible(r.getName()).isPresent())
+            .filter(r -> getSubResourceNameIfPossible(r.getName()).isEmpty())
             .map(
                 r ->
                     new APIResource(