1 files changed, 38 insertions, 4 deletions
diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index ce6bc4fe9d..8b3b172ae9 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -8081,12 +8081,14 @@ more efficient storage-wise than an uncompressed bitmap (as implemented in the
     (name "java-slf4j-api")
     (version "1.7.25")
     (source (origin
-              (method url-fetch)
-              (uri (string-append "https://www.slf4j.org/dist/slf4j-"
-                                  version ".tar.gz"))
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/qos-ch/slf4j")
+                    (commit (string-append "v_" version))))
+              (file-name (git-file-name name version))
               (sha256
                (base32
-                "13j51sgzmhhdrfa74gkal5zpip7r1440dh7zsi2c8bpb2zs1v8kb"))
+                "15n42zq3k1iyn752nwdcbs44hxns2rmxhglwjfr4np7lxx56apjl"))
               (modules '((guix build utils)))
               ;; Delete bundled jars.
               (snippet
@@ -8182,6 +8184,38 @@ all events to System.err.  Only messages of level INFO and higher are
 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")