Ignore JARs of relocated dependencies

core/shared/src/main/scala/coursier/core/Definitions.scala

@@ -89,7 +89,6 @@ final case class Project(
     */
   actualVersionOpt: Option[String],
 
-  // Ivy-specific
   // First String is configuration
   publications: Seq[(String, Publication)],
 

core/shared/src/main/scala/coursier/maven/MavenRepository.scala

@@ -328,6 +328,7 @@ final case class MavenRepository(
             val prefix = s"${module.name}-${versioningValue.getOrElse(version)}"
 
             val packagingTpeMap = proj0.packagingOpt
+              .filter(_ != Pom.relocatedPackaging)
               .map { packaging =>
                 (MavenSource.typeDefaultClassifier(packaging), MavenSource.typeExtension(packaging)) -> packaging
               }

core/shared/src/main/scala/coursier/maven/MavenSource.scala

@@ -228,13 +228,13 @@ final case class MavenSource(
     dependency: Dependency,
     project: Project,
     overrideClassifiers: Option[Seq[String]]
-  ): Seq[Artifact] = {
-
-    if (project.publications.isEmpty)
+  ): Seq[Artifact] =
+    if (project.packagingOpt.toSeq.contains(Pom.relocatedPackaging))
+      Nil
+    else if (project.publications.isEmpty)
       artifactsUnknownPublications(dependency, project, overrideClassifiers)
     else
       artifactsKnownPublications(dependency, project, overrideClassifiers)
-  }
 }
 
 object MavenSource {

core/shared/src/main/scala/coursier/maven/Pom.scala

@@ -296,7 +296,7 @@ object Pom {
         profiles,
         None,
         None,
-        packagingOpt(pom),
+        relocationDependencyOpt.fold(packagingOpt(pom))(_ => Some(relocatedPackaging)),
         None,
         Nil,
         Info(
@@ -445,6 +445,8 @@ object Pom {
     )
   }
 
+  val relocatedPackaging = s"$$relocated"
+
   val extraAttributeSeparator = ":#@#:"
   val extraAttributePrefix = "+"
 

tests/shared/src/test/resources/resolutions/org.apache.commons/commons-io/1.3.2

@@ -0,0 +1,2 @@
+commons-io:commons-io:1.3.2:compile
+org.apache.commons:commons-io:1.3.2:compile

tests/shared/src/test/scala/coursier/test/CentralTests.scala

@@ -588,10 +588,24 @@ object CentralTests extends TestSuite {
     }
 
     'relocation - {
-      resolutionCheck(
+      * - resolutionCheck(
         Module("bouncycastle", "bctsp-jdk14"),
         "138"
       )
+
+      'ignoreRelocationJars - {
+        val mod = Module("org.apache.commons", "commons-io")
+        val ver = "1.3.2"
+
+        val expectedUrl = "https://repo1.maven.org/maven2/commons-io/commons-io/1.3.2/commons-io-1.3.2.jar"
+
+        * - resolutionCheck(mod, ver)
+
+        * - withArtifacts(mod, ver, "jar", transitive = true) { artifacts =>
+          assert(artifacts.length == 1)
+          assert(artifacts.head.url == expectedUrl)
+        }
+      }
     }
   }