Include NOTICE+LICENSE in every jar

Adds the contents of `LICENSE` and `NOTICE` to every jar using the following patterns:
* `META-INF/licenses/<maven-group-id>/<maven-artifact-id>-<version>/LICENSE`
* `META-INF/licenses/<maven-group-id>/<maven-artifact-id>-<version>/NOTICE`

.gitignore

@@ -59,6 +59,7 @@ out/
 # gradle
 .gradle/
 build/
+.kotlin
 
 # Ignore Gradle wrapper jar file
 gradle/wrapper/gradle-wrapper.jar

LICENSE

@@ -1,5 +1,5 @@
-LICENSE applicable to Nessie source
------------------------------------
+Nessie LICENSE
+--------------
 
                                  Apache License
                            Version 2.0, January 2004

LICENSE-BINARY-DIST

@@ -1,5 +1,5 @@
-LICENSE applicable to Nessie binary distributions
--------------------------------------------------
+LICENSE applicable to Nessie executables and containers
+-------------------------------------------------------
 
                                  Apache License
                            Version 2.0, January 2004

NOTICE

@@ -1,5 +1,5 @@
-NOTICE applicable to Nessie source
-----------------------------------
+Nessie NOTICE
+-------------
 
 Dremio
 Copyright 2015-2025 Dremio Corporation
@@ -34,15 +34,15 @@ Copyright The Apache Software Foundation
 Netty
 Copyright The Netty Project
 
-This product includes additional software licensed under the terms
-of the following licenses:
+This product may include or have transitive dependencies to additional software
+licensed under the terms of the following licenses:
 * Apache Software License, Version 2.0
 * Creative Commons 1.0 Universal
 * Eclipse Distribution License, Version 1.0
 * Eclipse Public License, Version 1.0
 * Eclipse Public License, Version 2.0
 
-See also the LICENSE file for Nessie source.
+See also the LICENSE file.
 
 The Nessie web site provides aggregated license reports for recent Nessie
 binary distributions, available at https://projectnessie.org/docs/ and

NOTICE-BINARY-DIST

@@ -1,5 +1,5 @@
-NOTICE applicable to Nessie binary distributions
-------------------------------------------------
+NOTICE applicable to Nessie executables and containers
+------------------------------------------------------
 
 Dremio
 Copyright 2015-2025 Dremio Corporation

build-logic/src/main/kotlin/Utilities.kt

@@ -19,20 +19,18 @@ import java.io.File
 import java.lang.IllegalArgumentException
 import java.lang.IllegalStateException
 import java.util.Properties
-import org.gradle.api.Action
-import org.gradle.api.JavaVersion
-import org.gradle.api.Project
-import org.gradle.api.Task
-import org.gradle.api.UnknownProjectException
+import org.gradle.api.*
 import org.gradle.api.artifacts.Dependency
 import org.gradle.api.artifacts.ExternalModuleDependency
 import org.gradle.api.artifacts.ModuleDependency
 import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.FileTree
 import org.gradle.api.invocation.Gradle
 import org.gradle.api.logging.LogLevel
+import org.gradle.api.provider.ListProperty
 import org.gradle.api.resources.TextResource
-import org.gradle.api.tasks.SourceSetContainer
+import org.gradle.api.tasks.*
 import org.gradle.api.tasks.testing.Test
 import org.gradle.jvm.toolchain.JavaLanguageVersion
 import org.gradle.jvm.toolchain.JavaToolchainService
@@ -385,3 +383,34 @@ class ReplaceInFiles(val files: FileTree, val replacements: Map<String, String>)
     }
   }
 }
+
+@CacheableTask
+abstract class GeneratePomProperties : DefaultTask() {
+  @Suppress("unused") @get:Input abstract val pomInputs: ListProperty<String>
+
+  @get:OutputDirectory abstract val destinationDir: DirectoryProperty
+
+  init {
+    pomInputs.convention(listOf(project.group.toString(), project.name, project.version.toString()))
+    destinationDir.convention(project.layout.buildDirectory.dir("generated/pom-properties"))
+  }
+
+  @TaskAction
+  fun generate() {
+    val buildDir = destinationDir.get().asFile
+    buildDir.deleteRecursively()
+    val targetDir = buildDir.resolve("META-INF/maven/${project.group}/${project.name}")
+    targetDir.mkdirs()
+    targetDir
+      .resolve("pom.properties")
+      .writeText(
+        """
+      # Generated by the Nessie build.
+      groupId=${project.group}
+      artifactId=${project.name}
+      version=${project.version}
+    """
+          .trimIndent()
+      )
+  }
+}

build-logic/src/main/kotlin/nessie-common-java.gradle.kts

@@ -23,3 +23,45 @@ plugins {
   id("nessie-java")
   id("nessie-testing")
 }
+
+if (project.hasProperty("release") || project.hasProperty("jarWithGitInfo")) {
+  /**
+   * Adds convenient, but not strictly necessary information to each generated "main" jar.
+   *
+   * This includes `pom.properties` and `pom.xml` files where Maven places those, in
+   * `META-INF/maven/group-id/artifact-id/`. Also adds the `NOTICE` and `LICENSE` files in
+   * `META-INF`, which makes it easier for license scanners.
+   */
+  plugins.withType(JavaLibraryPlugin::class.java) {
+    val generatePomProperties =
+      tasks.register("generatePomProperties", GeneratePomProperties::class.java) {}
+
+    val additionalJarContent =
+      tasks.register("additionalJarContent", Sync::class.java) {
+        // Have to manually declare the inputs of this task here on top of the from/include below
+        inputs.files(rootProject.layout.files("LICENSE", "NOTICE"))
+        inputs.property("GAV", "${project.group}:${project.name}:${project.version}")
+        dependsOn("generatePomFileForMavenPublication")
+        from(rootProject.rootDir) {
+          include("LICENSE", "NOTICE")
+          eachFile {
+            this.path =
+              "META-INF/licenses/${project.group}/${project.name}-${project.version}/$sourceName"
+          }
+        }
+        from(tasks.named("generatePomFileForMavenPublication")) {
+          include("pom-default.xml")
+          eachFile { this.path = "META-INF/maven/${project.group}/${project.name}/pom.xml" }
+        }
+        into(layout.buildDirectory.dir("license-for-jar"))
+      }
+
+    tasks.named("processResources") { dependsOn(additionalJarContent) }
+
+    val sourceSets: SourceSetContainer by project
+    sourceSets.named("main") {
+      resources.srcDir(additionalJarContent)
+      resources.srcDir(generatePomProperties)
+    }
+  }
+}

build-logic/src/main/kotlin/nessie-common-src.gradle.kts

@@ -166,7 +166,7 @@ plugins.withType<JavaPlugin>().configureEach {
 // Adds Git/Build/System related information to the generated jars, if the `release` project
 // property is present. Do not add that information in development builds, so that the
 // generated jars are still cachable for Gradle.
-if (project.hasProperty("release")) {
+if (project.hasProperty("release") || project.hasProperty("jarWithGitInfo")) {
   tasks.withType<Jar>().configureEach {
     manifest { MemoizedGitInfo.gitInfo(rootProject, attributes) }
   }
@@ -193,7 +193,7 @@ class MemoizedGitInfo {
     }
 
     fun gitInfo(rootProject: Project): Map<String, String> {
-      if (!rootProject.hasProperty("release")) {
+      if (!rootProject.hasProperty("release") && !rootProject.hasProperty("jarWithGitInfo")) {
         return emptyMap()
       }