Initial setup: temporary Java 17 compatibility fixes for building

Co-authored-by: commjoen <[email protected]>

Author: Copilot

pom.xml

@@ -57,13 +57,13 @@
     <gcp.sdk.version>7.2.0</gcp.sdk.version>
     <github.button.version>2.14.1</github.button.version>
     <io.netty.version>4.1.118.Final</io.netty.version>
-    <java.version>23</java.version>
+    <java.version>17</java.version>
     <jquery.version>3.7.1</jquery.version>
     <jruby.version>10.0.2.0</jruby.version>
     <lombok.version>1.18.38</lombok.version>
     <maven-compiler-plugin.version>3.14.0</maven-compiler-plugin.version>
     <maven.compiler.proc>full</maven.compiler.proc>
-    <maven.compiler.target>23</maven.compiler.target>
+    <maven.compiler.target>17</maven.compiler.target>
     <spring.cloud-version>2025.0.0</spring.cloud-version>
     <spring.security.version>6.2.3</spring.security.version>
     <system-stubs-jupiter.version>2.1.8</system-stubs-jupiter.version>

src/main/java/org/owasp/wrongsecrets/Challenges.java

@@ -100,7 +100,8 @@ public boolean isFirstChallenge(ChallengeDefinition challengeDefinition) {
   }
 
   public boolean isLastChallenge(ChallengeDefinition challengeDefinition) {
-    return challengeDefinition.equals(definitions.challenges().getLast());
+    var challenges = definitions.challenges();
+    return challengeDefinition.equals(challenges.get(challenges.size() - 1));
   }
 
   public List<ChallengeDefinition> getChallengeDefinitions() {

src/main/java/org/owasp/wrongsecrets/challenges/ChallengeUI.java

@@ -109,7 +109,7 @@ private String documentation(Function<ChallengeSource, String> extractor) {
       return challengeDefinition.source(runtimeEnvironment).map(extractor).orElse("");
     } else {
       // We cannot run the challenge but showing documentation should still be possible
-      return extractor.apply(challengeDefinition.sources().getFirst());
+      return extractor.apply(challengeDefinition.sources().get(0));
     }
   }
 

src/main/java/org/owasp/wrongsecrets/challenges/ChallengesController.java

@@ -97,7 +97,7 @@ public String spoiler(@PathVariable("short-name") String shortName, Model model)
       Supplier<Spoiler> spoilerFromRandomChallenge =
           () -> {
             var challengeDefinition = findByShortName(shortName);
-            return challenges.getChallenge(challengeDefinition).getFirst().spoiler();
+            return challenges.getChallenge(challengeDefinition).get(0).spoiler();
           };
 
       // We always want to show the spoiler even if we run in a non-supported environment