From 7ded6b1749af8c4c994bfa23d7a7927918ad06f0 Mon Sep 17 00:00:00 2001
From: Andriy Redko <andriy.redko@aiven.io>
Date: Fri, 4 Mar 2022 11:57:31 -0500
Subject: [PATCH] Fixing the --html5 flag usage for javadoc

Signed-off-by: Andriy Redko <andriy.redko@aiven.io>
---
 .../main/java/org/opensearch/gradle/OpenSearchJavaPlugin.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/buildSrc/src/main/java/org/opensearch/gradle/OpenSearchJavaPlugin.java b/buildSrc/src/main/java/org/opensearch/gradle/OpenSearchJavaPlugin.java
index 67a0d426c10d0..c701c47f9e68c 100644
--- a/buildSrc/src/main/java/org/opensearch/gradle/OpenSearchJavaPlugin.java
+++ b/buildSrc/src/main/java/org/opensearch/gradle/OpenSearchJavaPlugin.java
@@ -270,7 +270,9 @@ private static void configureJavadoc(Project project) {
              * that the default will change to html5 in the future.
              */
             CoreJavadocOptions javadocOptions = (CoreJavadocOptions) javadoc.getOptions();
-            javadocOptions.addBooleanOption("html5", true);
+            if (BuildParams.getRuntimeJavaVersion().compareTo(JavaVersion.VERSION_1_8) > 0) {
+                javadocOptions.addBooleanOption("html5", true);
+            }
         });
 
         TaskProvider<Javadoc> javadoc = project.getTasks().withType(Javadoc.class).named("javadoc");