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[bug#30050] [PATCH 1/2] gnu: antlr3-3.1: Fix java8 issue.


From: Gábor Boskovits
Subject: [bug#30050] [PATCH 1/2] gnu: antlr3-3.1: Fix java8 issue.
Date: Tue, 9 Jan 2018 21:10:08 +0100

* gnu/packages/java.scm (antlr3-3.1)[source]: Add patch.
* gnu/packages/patches/antlr3-3_1-fix-java8-compilation.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

In java8 it is an error to pass null to removeAll. Fix it.
---
 gnu/local.mk                                       |  1 +
 gnu/packages/java.scm                              |  4 ++-
 .../patches/antlr3-3_1-fix-java8-compilation.patch | 35 ++++++++++++++++++++++
 3 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/antlr3-3_1-fix-java8-compilation.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index 8ed01eb2f..eb19acd59 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -541,6 +541,7 @@ dist_patch_DATA =                                           
\
   %D%/packages/patches/agg-am_c_prototype.patch                        \
   %D%/packages/patches/ansible-wrap-program-hack.patch         \
   %D%/packages/patches/antiword-CVE-2014-8123.patch                    \
+  %D%/packages/patches/antlr3-3_1-fix-java8-compilation.patch  \
   %D%/packages/patches/apr-skip-getservbyname-test.patch       \
   %D%/packages/patches/aspell-default-dict-dir.patch           \
   %D%/packages/patches/ath9k-htc-firmware-binutils.patch       \
diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 66db15389..1349906a9 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -5194,7 +5194,9 @@ import org.antlr.grammar.v2.ANTLRTreePrinter;"))
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0sfimc9cpbgrihz4giyygc8afgpma2c93yqpwb951giriri6x66z"))))
+                "0sfimc9cpbgrihz4giyygc8afgpma2c93yqpwb951giriri6x66z"))
+              (patches
+               (search-patches "antlr3-3_1-fix-java8-compilation.patch"))))
     (arguments
      `(#:jar-name (string-append ,name "-" ,version ".jar")
        #:source-dir "src:runtime/Java/src"
diff --git a/gnu/packages/patches/antlr3-3_1-fix-java8-compilation.patch 
b/gnu/packages/patches/antlr3-3_1-fix-java8-compilation.patch
new file mode 100644
index 000000000..0c4deb024
--- /dev/null
+++ b/gnu/packages/patches/antlr3-3_1-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 db2a350c6d90efaa8dde949fa76005c2c5af45c4 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?G=C3=A1bor=20Boskovits?= <address@hidden>
+Date: Fri, 5 Jan 2018 17:05:31 +0100
+Subject: [PATCH] Fix java8 compilation.
+
+---
+ src/org/antlr/tool/CompositeGrammar.java | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/org/antlr/tool/CompositeGrammar.java 
b/src/org/antlr/tool/CompositeGrammar.java
+index f1408e7..7e02431 100644
+--- a/src/org/antlr/tool/CompositeGrammar.java
++++ b/src/org/antlr/tool/CompositeGrammar.java
+@@ -218,7 +218,9 @@ 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
+
-- 
2.15.1






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