dev-java/javassist: build with Java 8+, update EAPI 5 -> 7

Signed-off-by: Sam James <sam@gentoo.org>

dev-java/javassist/javassist-3.18.2-r1.ebuild

@@ -0,0 +1,44 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+JAVA_ANT_REWRITE_CLASSPATH=y
+JAVA_PKG_IUSE="doc source examples"
+
+EANT_DOC_TARGET="javadocs"
+EANT_NEEDS_TOOLS="yes"
+
+MAVEN_ID="javassist:javassist:3.18.2"
+
+inherit java-pkg-2 java-ant-2
+
+DESCRIPTION="Javassist makes Java bytecode manipulation simple"
+HOMEPAGE="http://www.csg.is.titech.ac.jp/~chiba/javassist/"
+SRC_URI="https://github.com/jboss-javassist/javassist/archive/rel_${PV//./_}_ga_build.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/${PN}-rel_${PV//./_}_ga_build"
+
+LICENSE="MPL-1.1"
+SLOT="3"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86 ~amd64-linux ~x86-linux"
+
+RDEPEND=">=virtual/jre-1.8:*"
+DEPEND=">=virtual/jdk-1.8:*"
+BDEPEND="app-arch/unzip"
+
+src_prepare() {
+	default
+
+	find -name "*.jar" -delete || die
+}
+
+src_install() {
+	java-pkg_dojar ${PN}.jar
+
+	use doc && java-pkg_dojavadoc html
+	use source && java-pkg_dosrc src/main/javassist
+	use examples && java-pkg_doexamples sample/*
+
+	docinto html
+	dodoc Readme.html
+}