Use unmodifiable list for java options

elastic · Mar 22, 2022 · 5a095c1 · 5a095c1
1 parent 9f688b8
commit 5a095c1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/logstash-core/src/main/java/org/logstash/launchers/JvmOptionsParser.java b/logstash-core/src/main/java/org/logstash/launchers/JvmOptionsParser.java
@@ -167,7 +167,7 @@ static List<String> getMandatoryJvmOptions(int javaMajorVersion){
           return Arrays.stream(MANDATORY_JVM_OPTIONS)
                   .map(option -> jvmOptionFromLine(javaMajorVersion, option))
                   .flatMap(Optional::stream)
-                  .collect(Collectors.toList());
+                  .collect(Collectors.toUnmodifiableList());
     }
 
     private List<String> getJvmOptionsFromFile(final Optional<Path> jvmOptionsFile, final int javaMajorVersion) throws IOException, JvmOptionsFileParserException {