[dev-java/slf4j-*] jss still needs it, so add.

dev-java/slf4j-simple/Manifest

@@ -0,0 +1 @@
+DIST slf4j-1.7.36.tar.gz 2276203 BLAKE2B 930de76047c694b4e566ba743ee90a2efb062358b03209137f686c4bf4ead122aa84c18b79615e5a67f1a890abdc1b8f70f62b7803f7b8e45c766ff8254836d4 SHA512 1384c771aa04d9d351854cf8ddeef66ee9f43df53890a05413c48c14cf1cb78a457bb4b2a6e2f064f1c1ab68b2eaa1d326fc03bb6b7c145915660a2c873692d0

dev-java/slf4j-simple/metadata.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>java@gentoo.org</email>
+		<name>Java</name>
+	</maintainer>
+	<upstream>
+		<doc>http://www.slf4j.org/docs.html</doc>
+		<bugs-to>http://www.slf4j.org/bug-reporting.html</bugs-to>
+	</upstream>
+</pkgmetadata>

dev-java/slf4j-simple/slf4j-simple-1.7.36.ebuild

@@ -0,0 +1,77 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# Skeleton command:
+# java-ebuilder --generate-ebuild --workdir . --pom pom.xml --download-uri https://github.com/qos-ch/slf4j/archive/v_1.7.36.tar.gz --slot 0 --keywords "~amd64 ~arm ~arm64 ~ppc64 ~x86" --ebuild slf4j-simple-1.7.36.ebuild
+
+EAPI=8
+
+JAVA_PKG_IUSE="doc source test"
+MAVEN_ID="org.slf4j:slf4j-simple:1.7.36"
+JAVA_TESTING_FRAMEWORKS="junit-4"
+
+inherit java-pkg-2 java-pkg-simple
+
+DESCRIPTION="SLF4J Simple binding"
+HOMEPAGE="https://www.slf4j.org"
+SRC_URI="https://github.com/qos-ch/slf4j/archive/v_${PV}.tar.gz -> slf4j-${PV}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="amd64 ~arm arm64 ppc64 x86"
+
+# Common dependencies
+# POM: pom.xml
+# org.slf4j:slf4j-api:1.7.36 -> >=dev-java/slf4j-api-1.7.36:0
+
+CP_DEPEND="
+	~dev-java/slf4j-api-${PV}:0
+"
+
+# Compile dependencies
+# POM: pom.xml
+# test? junit:junit:4.13 -> >=dev-java/junit-4.13.2:4
+# test? org.slf4j:slf4j-api:1.7.36 -> >=dev-java/slf4j-api-1.7.36:0
+
+DEPEND="
+	>=virtual/jdk-1.8:*
+	${CP_DEPEND}
+	test? (
+		~dev-java/slf4j-api-${PV}:0
+	)
+"
+
+RDEPEND="
+	>=virtual/jre-1.8:*
+	${CP_DEPEND}"
+
+DOCS=( LICENSE.txt ../README.md )
+
+S="${WORKDIR}/slf4j-v_${PV}/${PN}"
+
+JAVA_SRC_DIR="src/main/java"
+JAVA_RESOURCE_DIRS="src/main/resources"
+
+JAVA_TEST_GENTOO_CLASSPATH="junit-4,slf4j-api"
+JAVA_TEST_SRC_DIR="src/test/java"
+JAVA_TEST_RESOURCE_DIRS="src/test/resources"
+
+JAVA_TEST_EXCLUDES=(
+	# java.lang.InstantiationException
+	"org.slf4j.helpers.MultithreadedInitializationTest"
+
+	# java.lang.AssertionError: 1284 < 1263+16
+	"org.slf4j.helpers.SimpleLoggerMultithreadedInitializationTest"
+)
+
+src_prepare() {
+	default
+	java-pkg_clean
+	cp {../slf4j-api/,}src/test/java/org/slf4j/helpers/MultithreadedInitializationTest.java || die
+	cp {../slf4j-api/,}src/test/java/org/slf4j/LoggerAccessingThread.java  || die
+}
+
+src_install() {
+	default # https://bugs.gentoo.org/789582
+	java-pkg-simple_src_install
+}