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-rw-r--r--gnu/packages/patches/antlr3-3_3-fix-java8-compilation.patch35
1 files changed, 35 insertions, 0 deletions
diff --git a/gnu/packages/patches/antlr3-3_3-fix-java8-compilation.patch b/gnu/packages/patches/antlr3-3_3-fix-java8-compilation.patch
new file mode 100644
index 0000000000..a7d6be9b6b
--- /dev/null
+++ b/gnu/packages/patches/antlr3-3_3-fix-java8-compilation.patch
@@ -0,0 +1,35 @@
+Based on the upstream fix for the java8 compilation issue.
+Simplified patch.
+Upstream version of patch does not work with this source tree.
+
+The issue is that in java8 it is an error to pass null to
+removeAll. Results in null pointer exception. java7
+behaviour was to return the list unmodified.
+
+From 43867d50c05d1c06ab7220eb974a8874ae10c308 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?G=C3=A1bor=20Boskovits?= <boskovits@gmail.com>
+Date: Fri, 5 Jan 2018 19:08:24 +0100
+Subject: [PATCH] Fix java8 complilation error.
+
+---
+ tool/src/main/java/org/antlr/tool/CompositeGrammar.java | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/tool/src/main/java/org/antlr/tool/CompositeGrammar.java b/tool/src/main/java/org/antlr/tool/CompositeGrammar.java
+index f34ea73..63740a6 100644
+--- a/tool/src/main/java/org/antlr/tool/CompositeGrammar.java
++++ b/tool/src/main/java/org/antlr/tool/CompositeGrammar.java
+@@ -226,7 +226,9 @@ public class CompositeGrammar {
+ public List<Grammar> getIndirectDelegates(Grammar g) {
+ List<Grammar> direct = getDirectDelegates(g);
+ List<Grammar> delegates = getDelegates(g);
+- delegates.removeAll(direct);
++ if(direct != null) {
++ delegates.removeAll(direct);
++ }
+ return delegates;
+ }
+
+--
+2.15.1
+