From 70188dbe574a43a62690b3f24dd93363bbf0bf4f Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flo@geekplace.eu>
Date: Mon, 25 May 2020 11:14:47 +0200
Subject: [PATCH] [travis] Only run javadocAll on Java 11 or higher

It appears that 'javadoc' from older JREs is not able to consume the
javadoc generated by newer JREs:

javadoc: warning - Error fetching URL: https://jxmpp.org/releases/0.7.0-alpha6/javadoc/
javadoc: warning - Error fetching URL: https://minidns.org/releases/0.4.0-alpha5/javadoc/
---
 .travis.yml | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 10f7b90f5..94cc1fb74 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -35,7 +35,16 @@ install: gradle assemble --stacktrace
 # functional. Which hasn't always be the case in the past, see
 # 90cbcaebc7a89f4f771f733a33ac9f389df85be2
 # Also run javadocAll to ensure it works.
-script: gradle check publishToMavenLocal javadocAll --stacktrace
+script:
+  - |
+    JAVAC_MAJOR_VERSION=$(javac -version | sed -E 's/javac ([[:digit:]]+).*/\1/')
+    GRADLE_TASKS=()
+    GRADLE_TASKS+=(check)
+    GRADLE_TASKS+=(publishToMavenLocal)
+    if [[ ${JAVAC_MAJOR_VERSION} -ge 11 ]]; then
+      GRADLE_TASKS+=(javadocAll)
+    fi
+    gradle ${GRADLE_TASKS[@]} --stacktrace
 
 after_success:
   - JAVAC_VERSION=$((javac -version) 2>&1)