dev-java/antlr: style update, update EAPI 7 -> 8

Signed-off-by: Volkmar W. Pogatzki <gentoo@pogatzki.net>
Closes: beb83bad91
Signed-off-by: Miroslav Šulc <fordfrog@gentoo.org>

dev-java/antlr/antlr-2.7.7-r10.ebuild

@@ -1,9 +1,9 @@
 # Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
 
-JAVA_PKG_IUSE="doc source"
+JAVA_PKG_IUSE="doc examples source"
 MAVEN_ID="antlr:antlr:2.7.7"
 
 inherit java-pkg-2 java-pkg-simple
@@ -11,23 +11,23 @@ inherit java-pkg-2 java-pkg-simple
 DESCRIPTION="A parser generator for many languages"
 HOMEPAGE="https://www.antlr2.org/"
 SRC_URI="https://www.antlr2.org/download/${P}.tar.gz"
+S="${WORKDIR}/${P}"
 
 LICENSE="public-domain"
 SLOT="0"
 KEYWORDS="amd64 arm64 ppc64 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris"
-IUSE="examples"
 
-RDEPEND=">=virtual/jre-1.8:*"
 DEPEND=">=virtual/jdk-1.8:*"
+RDEPEND=">=virtual/jre-1.8:*"
 
-S="${WORKDIR}/${P}"
-
+JAVA_MAIN_CLASS="antlr.Tool"
 JAVA_SRC_DIR="${S}/${PN}"
 
 DOCS=( CHANGES.txt README.txt )
 
 src_prepare() {
-	default
+	default #780585
+	java-pkg-2_src_prepare
 	java-pkg_clean
 
 	# Delete build files from examples.
@@ -39,12 +39,8 @@ src_configure() { :; }
 
 src_install() {
 	java-pkg-simple_src_install
-	java-pkg_dolauncher antlr --main antlr.Tool
 
 	use doc && java-pkg_dohtml -r doc/*
 	use examples && java-pkg_doexamples examples/java
 	use source && java-pkg_dosrc antlr
-
-	# https://bugs.gentoo.org/789582
-	einstalldocs
 }