From bac64ac95850aac30eb23b07ea4eedae6a27f51a Mon Sep 17 00:00:00 2001
From: Zach Levis <zml@aoeu.xyz>
Date: Sat, 19 Dec 2020 14:43:17 -0800
Subject: [PATCH] build: Fix search when generating Javadoc with broken java
 versions

---
 api/build.gradle | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/api/build.gradle b/api/build.gradle
index a02f510b9..23864b6d0 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -93,9 +93,14 @@ javadoc {
 
     // Disable the crazy super-strict doclint tool in Java 8
     options.addStringOption('Xdoclint:none', '-quiet')
-    
+
     // Mark sources as Java 8 source compatible
     options.source = '8'
+
+    // Remove 'undefined' from seach paths when generating javadoc for a non-modular project (JDK-8215291)
+    if (JavaVersion.current() >= JavaVersion.VERSION_1_9 && JavaVersion.current() < JavaVersion.VERSION_12) {
+        options.addBooleanOption('-no-module-directories', true)
+    }
 }
 
 test {