[bug#57724] [PATCH] gnu: Add java-slf4j-nop.

["Artyom V. Poptsov" <poptsov.artyom@gmail.com>]

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Hello,

this patch adds "java-slf4j-nop". [1]

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From 1368333635491a4bbe6f294f016a8cb63912ff35 Mon Sep 17 00:00:00 2001
From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
Date: Fri, 9 Sep 2022 19:49:56 +0300
Subject: [PATCH] gnu: Add java-slf4j-nop.

* gnu/packages/java.scm (java-slf4j-nop): New variable.
---
 gnu/packages/java.scm | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 9fa9f61f12..45c3b423f0 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -8168,6 +8168,38 @@ (define-public java-slf4j-simple
 printed.")
     (license license:expat)))
 
+(define-public java-slf4j-nop
+  (package
+    (name "java-slf4j-nop")
+    (version "1.7.25")
+    (source (package-source java-slf4j-api))
+    (build-system ant-build-system)
+    (arguments
+     `(#:jar-name "slf4j-nop.jar"
+       #:source-dir "slf4j-nop/src/main"
+       #:test-dir "slf4j-nop/src/test"
+       #:phases (modify-phases %standard-phases
+                  ;; The tests need some test classes from slf4j-api
+                  (add-before 'check 'build-slf4j-api-test-helpers
+                    (lambda _
+                      ;; Add current dir to CLASSPATH ...
+                      (setenv "CLASSPATH"
+                              (string-append (getcwd) ":"
+                                             (getenv "CLASSPATH")))
+                      ;; ... and build test helper classes here:
+                      (apply invoke
+                             `("javac" "-d" "."
+                               ,@(find-files "slf4j-api/src/test" ".*\\.java")))))
+                  (replace 'install
+                    (install-from-pom "slf4j-nop/pom.xml")))))
+    (propagated-inputs (list java-slf4j-api))
+    (native-inputs (list java-junit java-hamcrest-core))
+    (home-page "https://www.slf4j.org/")
+    (synopsis "SLF4J binding that silently discards all logging messages")
+    (description "Binding/provider for NOP, an implementation that silently
+discards all logging messages.")
+    (license license:expat)))
+
 (define-public antlr2
   (package
     (name "antlr2")
-- 
2.34.1


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- Artyom

References:
1. "Binding/provider for NOP, an implementation that silently discards
   all logging messages."
   <https://mvnrepository.com/artifact/org.slf4j/slf4j-nop>

-- 
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
GPG: D0C2 EAC1 3310 822D 98DE  B57C E9C5 A2D9 0898 A02F

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