gnu: openjdk13: Make reproducible.

* gnu/packages/patches/openjdk-13-classlist-reproducibility.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add patch.
* gnu/packages/java.scm (openjdk13)[source]: Add patch.
[arguments]<#:phases>[remove-timestamping]: Modify phase.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Change-Id: I1b2943c989e2d6acfd8131ea4ede978c61948811

gnu/local.mk

@@ -1841,6 +1841,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/openjdk-10-pointer-comparison.patch      \
   %D%/packages/patches/openjdk-10-setsignalhandler.patch        \
   %D%/packages/patches/openjdk-11-classlist-reproducibility.patch	\
+  %D%/packages/patches/openjdk-13-classlist-reproducibility.patch	\
   %D%/packages/patches/openjdk-15-xcursor-no-dynamic.patch	\
   %D%/packages/patches/openjdk-21-fix-rpath.patch		\
   %D%/packages/patches/openmpi-mtl-priorities.patch		\

gnu/packages/java.scm

@@ -1669,9 +1669,20 @@ (define-public openjdk12
 (define-public openjdk13
   (make-openjdk openjdk12 "13.0.14"
                 "1v92i5rhahqkjw8mz09c9qasnxqc67ygy0y266kdmm534z0da755"
-  (source (origin
+   (source (origin
-            (inherit (package-source base))
+             (inherit (package-source base))
-            (patches '())))))
+             (patches (search-patches "openjdk-13-classlist-reproducibility.patch"
+                                      "openjdk-10-jtask-reproducibility.patch"))))
+   (arguments
+    (substitute-keyword-arguments (package-arguments openjdk12)
+      ((#:phases phases)
+       #~(modify-phases #$phases
+           (replace 'remove-timestamping
+             (lambda _
+               (substitute*
+                "src/hotspot/share/runtime/abstract_vm_version.cpp"
+                (("__DATE__") "")
+                (("__TIME__") ""))))))))))
 
 (define-public openjdk14
   (make-openjdk

gnu/packages/patches/openjdk-13-classlist-reproducibility.patch

@@ -0,0 +1,11 @@
+--- 6cllxkf0narh0b4wgx8npwjkznd7ifq0-openjdk-13.0.7-checkout/make/GenerateLinkOptData.gmk.orig	2022-04-04 17:20:33.012539984 +0200
++++ 6cllxkf0narh0b4wgx8npwjkznd7ifq0-openjdk-13.0.7-checkout/make/GenerateLinkOptData.gmk	2022-04-04 17:20:51.181032859 +0200
+@@ -78,7 +78,7 @@
+ 	        $(CAT) $(LINK_OPT_DIR)/stderr $(JLI_TRACE_FILE) ; \
+ 	        exit $$exitcode \
+ 	    )
+-	$(GREP) -v HelloClasslist $@.raw > $@
++	$(GREP) -v HelloClasslist $@.raw | sort > $@
+ 
+ # The jli trace is created by the same recipe as classlist. By declaring these
+ # dependencies, make will correctly rebuild both jli trace and classlist