diff --git a/build.gradle.kts b/build.gradle.kts
index 24cc3986..82af0dc3 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -49,3 +49,28 @@ extra["bintray.dryRun"] = false
 // if true, uploaded artifacts are visible to all
 // if false, only visible to owner when logged into bintray
 extra["bintray.publish"] = true
+
+
+allprojects {
+	tasks {
+		withType<JavaCompile>().configureEach {
+			sourceCompatibility = "1.8"
+			targetCompatibility = "1.8"
+
+			options.encoding = "ISO-8859-1"
+		}
+
+		withType<Jar>().configureEach {
+			// manifest for all created JARs
+			manifest.attributes(mapOf(
+				"Implementation-Vendor" to "FormDev Software GmbH",
+				"Implementation-Copyright" to "Copyright (C) ${java.time.LocalDate.now().year} FormDev Software GmbH. All rights reserved.",
+				"Implementation-Version" to project.version))
+
+			// add META-INF/LICENSE to all created JARs
+			from("${rootDir}/LICENSE") {
+				into("META-INF")
+			}
+		}
+	}
+}
diff --git a/flatlaf-core/build.gradle.kts b/flatlaf-core/build.gradle.kts
index 6e62ba48..c66bd8f5 100644
--- a/flatlaf-core/build.gradle.kts
+++ b/flatlaf-core/build.gradle.kts
@@ -33,11 +33,6 @@ if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
 	}
 }
 
-java {
-	sourceCompatibility = JavaVersion.VERSION_1_8
-	targetCompatibility = JavaVersion.VERSION_1_8
-}
-
 tasks {
 	assemble {
 		dependsOn(
diff --git a/flatlaf-demo/build.gradle.kts b/flatlaf-demo/build.gradle.kts
index 661fd3b5..fb1dd191 100644
--- a/flatlaf-demo/build.gradle.kts
+++ b/flatlaf-demo/build.gradle.kts
@@ -34,11 +34,6 @@ dependencies {
 	implementation( "com.jgoodies:jgoodies-forms:1.9.0" )
 }
 
-java {
-	sourceCompatibility = JavaVersion.VERSION_1_8
-	targetCompatibility = JavaVersion.VERSION_1_8
-}
-
 tasks {
 	jar {
 		dependsOn( ":flatlaf-core:jar" )
@@ -52,7 +47,11 @@ tasks {
 
 		// include all dependencies in jar
 		from( {
-			configurations.runtimeClasspath.get().filter { it.name.endsWith( "jar" ) }.map { zipTree( it ) }
+			configurations.runtimeClasspath.get()
+				.filter { it.name.endsWith( "jar" ) }
+				.map { zipTree( it ).matching {
+					exclude( "META-INF/LICENSE" )
+				} }
 		} )
 	}
 }
diff --git a/flatlaf-extras/build.gradle.kts b/flatlaf-extras/build.gradle.kts
index 8e169238..6fc245b6 100644
--- a/flatlaf-extras/build.gradle.kts
+++ b/flatlaf-extras/build.gradle.kts
@@ -22,8 +22,3 @@ dependencies {
 	implementation( project( ":flatlaf-core" ) )
 	implementation( "com.formdev:svgSalamander:1.1.2.1" )
 }
-
-java {
-	sourceCompatibility = JavaVersion.VERSION_1_8
-	targetCompatibility = JavaVersion.VERSION_1_8
-}
diff --git a/flatlaf-jide-oss/build.gradle.kts b/flatlaf-jide-oss/build.gradle.kts
index c921723d..158129e8 100644
--- a/flatlaf-jide-oss/build.gradle.kts
+++ b/flatlaf-jide-oss/build.gradle.kts
@@ -26,11 +26,6 @@ dependencies {
 	implementation( "com.jidesoft:jide-oss:3.6.18" )
 }
 
-java {
-	sourceCompatibility = JavaVersion.VERSION_1_8
-	targetCompatibility = JavaVersion.VERSION_1_8
-}
-
 tasks {
 	assemble {
 		dependsOn(
diff --git a/flatlaf-swingx/build.gradle.kts b/flatlaf-swingx/build.gradle.kts
index 892e19a9..22b2e542 100644
--- a/flatlaf-swingx/build.gradle.kts
+++ b/flatlaf-swingx/build.gradle.kts
@@ -26,11 +26,6 @@ dependencies {
 	implementation( "org.swinglabs.swingx:swingx-all:1.6.5-1" )
 }
 
-java {
-	sourceCompatibility = JavaVersion.VERSION_1_8
-	targetCompatibility = JavaVersion.VERSION_1_8
-}
-
 tasks {
 	assemble {
 		dependsOn(
diff --git a/flatlaf-testing/build.gradle.kts b/flatlaf-testing/build.gradle.kts
index 886a17a4..1bfca1c5 100644
--- a/flatlaf-testing/build.gradle.kts
+++ b/flatlaf-testing/build.gradle.kts
@@ -36,8 +36,3 @@ dependencies {
 //	implementation( "com.weblookandfeel:weblaf-ui:1.2.12" )
 //	implementation( "com.jgoodies:jgoodies-looks:2.7.0" )
 }
-
-java {
-	sourceCompatibility = JavaVersion.VERSION_1_8
-	targetCompatibility = JavaVersion.VERSION_1_8
-}