fix warnings

core/src/main/scala/sbt/librarymanagement/ConflictWarning.scala

@@ -44,7 +44,7 @@ object ConflictWarning {
   /** Map from (organization, rawName) to set of multiple full names. */
   def crossVersionMismatches(report: UpdateReport): Map[(String, String), Set[String]] = {
     val mismatches = report.configurations.flatMap { confReport =>
-      groupByRawName(confReport.allModules).mapValues { modules =>
+      groupByRawName(confReport.allModules).view.mapValues { modules =>
         val differentFullNames = modules.map(_.name).toSet
         if (differentFullNames.size > 1) differentFullNames else Set.empty[String]
       }

core/src/main/scala/sbt/librarymanagement/DependencyResolution.scala

@@ -186,8 +186,8 @@ class DependencyResolution private[sbt] (lmEngine: DependencyResolutionInterface
         // The artifacts that came from Ivy don't have their classifier set, let's set it according to
         // FIXME: this is only done because IDE plugins depend on `classifier` to determine type. They
         val typeClassifierMap: Map[String, String] =
-          ((sourceArtifactTypes.toIterable map (_ -> Artifact.SourceClassifier))
+          ((sourceArtifactTypes.toSeq map (_ -> Artifact.SourceClassifier))
-            :: (docArtifactTypes.toIterable map (_ -> Artifact.DocClassifier)) :: Nil).flatten.toMap
+            :: (docArtifactTypes.toSeq map (_ -> Artifact.DocClassifier)) :: Nil).flatten.toMap
         Right(r.substitute { (conf, mid, artFileSeq) =>
           artFileSeq map { case (art, f) =>
             // Deduce the classifier from the type if no classifier is present already

core/src/main/scala/sbt/librarymanagement/ModuleIDExtra.scala

@@ -64,7 +64,7 @@ private[librarymanagement] abstract class ModuleIDExtra {
 
   /** Returns the extra attributes except for ones marked as information only (ones that typically would not be used for dependency resolution). */
   def extraDependencyAttributes: Map[String, String] =
-    extraAttributes.filterKeys(!_.startsWith(SbtPomExtraProperties.POM_INFO_KEY_PREFIX)).toMap
+    extraAttributes.view.filterKeys(!_.startsWith(SbtPomExtraProperties.POM_INFO_KEY_PREFIX)).toMap
 
   @deprecated(
     "Use `cross(CrossVersion)`, the variant accepting a CrossVersion value constructed by a member of the CrossVersion object instead.",

ivy/src/main/scala/sbt/internal/librarymanagement/ConvertResolver.scala

@@ -35,7 +35,7 @@ import org.apache.ivy.core.module.descriptor.DefaultArtifact
 import org.apache.ivy.core.report.DownloadReport
 import org.apache.ivy.plugins.resolver.util.{ ResolvedResource, ResourceMDParser }
 import org.apache.ivy.util.{ ChecksumHelper, FileUtil, Message }
-import scala.collection.JavaConverters._
+import scala.jdk.CollectionConverters._
 import sbt.internal.librarymanagement.mavenint.PomExtraDependencyAttributes
 import sbt.io.IO
 import sbt.util.Logger

ivy/src/main/scala/sbt/internal/librarymanagement/CustomPomParser.scala

@@ -171,7 +171,7 @@ object CustomPomParser {
   // The extra sbt plugin metadata in pom.xml does not need to be readable by maven, but the other information may be.
   // However, the pom.xml needs to be valid in all cases because other tools like repository managers may read the pom.xml.
   private[sbt] def getPomProperties(md: ModuleDescriptor): Map[String, String] = {
-    import collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     PomModuleDescriptorBuilder
       .extractPomProperties(md.getExtraInfo)
       .asInstanceOf[java.util.Map[String, String]]
@@ -182,13 +182,13 @@ object CustomPomParser {
     (propertyAttributes - ExtraAttributesKey) map { case (k, v) => ("e:" + k, v) }
 
   private[this] def shouldBeUnqualified(m: Map[String, String]): Map[String, String] =
-    m.filterKeys(unqualifiedKeys).toMap
+    m.view.filterKeys(unqualifiedKeys).toMap
 
   private[this] def addExtra(
       properties: Map[String, String],
       id: ModuleRevisionId
   ): ModuleRevisionId = {
-    import collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     val oldExtra = qualifiedExtra(id)
     val newExtra = (oldExtra ++ properties).asJava
     // remove the sbt plugin cross version from the resolved ModuleRevisionId
@@ -211,9 +211,9 @@ object CustomPomParser {
   def qualifiedExtra(item: ExtendableItem): Map[String, String] =
     PomExtraDependencyAttributes.qualifiedExtra(item)
   def filterCustomExtra(item: ExtendableItem, include: Boolean): Map[String, String] =
-    (qualifiedExtra(item) filterKeys { k =>
+    qualifiedExtra(item).view.filterKeys { k =>
       qualifiedIsExtra(k) == include
-    }).toMap
+    }.toMap
 
   def writeDependencyExtra(s: Seq[DependencyDescriptor]): Seq[String] =
     PomExtraDependencyAttributes.writeDependencyExtra(s)
@@ -275,7 +275,7 @@ object CustomPomParser {
       case None => dd
     }
 
-  import collection.JavaConverters._
+  import scala.jdk.CollectionConverters._
   def addExtra(
       properties: Map[String, String],
       dependencyExtra: Map[ModuleRevisionId, Map[String, String]],

ivy/src/main/scala/sbt/internal/librarymanagement/Ivy.scala

@@ -561,7 +561,7 @@ private[sbt] object IvySbt {
    * Clearly, it would be better to have an explicit option in Ivy to control this.
    */
   def hasImplicitClassifier(artifact: IArtifact): Boolean = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     artifact.getQualifiedExtraAttributes.asScala.keys
       .exists(_.asInstanceOf[String] startsWith "m:")
   }
@@ -795,7 +795,7 @@ private[sbt] object IvySbt {
     artifact
   }
   def getExtraAttributes(revID: ExtendableItem): Map[String, String] = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     revID.getExtraAttributes.asInstanceOf[java.util.Map[String, String]].asScala.toMap
   }
   private[sbt] def extra(
@@ -808,7 +808,7 @@ private[sbt] object IvySbt {
     javaMap(ea.extraAttributes, unqualify)
   }
   private[sbt] def javaMap(m: Map[String, String], unqualify: Boolean = false) = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     val map = if (unqualify) m map { case (k, v) => (k.stripPrefix("e:"), v) }
     else m
     if (map.isEmpty) null else map.asJava
@@ -962,9 +962,9 @@ private[sbt] object IvySbt {
       deps.put(id, updated)
     }
 
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     deps.values.asScala.toSeq.flatMap { dds =>
-      val mergeable = (dds, dds.tail).zipped.forall(ivyint.MergeDescriptors.mergeable _)
+      val mergeable = dds.lazyZip(dds.tail).forall(ivyint.MergeDescriptors.mergeable _)
       if (mergeable) dds.reverse.reduceLeft(ivyint.MergeDescriptors.apply _) :: Nil else dds
     }
   }

ivy/src/main/scala/sbt/internal/librarymanagement/IvyActions.scala

@@ -236,7 +236,7 @@ object IvyActions {
     }.toMap
 
   def grouped[T](grouping: ModuleID => T)(mods: Seq[ModuleID]): Map[T, Set[String]] =
-    mods.groupBy(grouping).mapValues(_.map(_.revision).toSet).toMap
+    mods.groupBy(grouping).view.mapValues(_.map(_.revision).toSet).toMap
 
   def addExcluded(
       report: UpdateReport,

ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/CachedResolutionResolveEngine.scala

@@ -158,7 +158,7 @@ private[sbt] class CachedResolutionResolveCache {
     (md1, IvySbt.isChanging(dd) || internalDependency(dd, prOpt).isDefined, dd)
   }
   def extractOverrides(md0: ModuleDescriptor): Vector[IvyOverride] = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     md0.getAllDependencyDescriptorMediators.getAllRules.asScala.toSeq.toVector sortBy {
       case (k, _) =>
         k.toString

ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/IvyCredentialsLookup.scala

@@ -2,7 +2,7 @@ package sbt.internal.librarymanagement
 package ivyint
 
 import org.apache.ivy.util.url.CredentialsStore
-import collection.JavaConverters._
+import scala.jdk.CollectionConverters._
 
 /** A key used to store credentials in the ivy credentials store. */
 private[sbt] sealed trait CredentialKey
@@ -56,11 +56,16 @@ private[sbt] object IvyCredentialsLookup {
    * A mapping of host -> realms in the ivy credentials store.
    */
   def realmsForHost: Map[String, Set[String]] =
-    (keyringKeys collect { case x: Realm =>
+    keyringKeys
-      x
+      .collect { case x: Realm =>
-    } groupBy { realm =>
+        x
-      realm.host
+      }
-    } mapValues { realms =>
+      .groupBy { realm =>
-      realms map (_.realm)
+        realm.host
-    }).toMap
+      }
+      .view
+      .mapValues { realms =>
+        realms map (_.realm)
+      }
+      .toMap
 }

ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/ParallelResolveEngine.scala

@@ -40,7 +40,7 @@ private[sbt] class ParallelResolveEngine(
       artifactFilter: Filter,
       options: DownloadOptions
   ): Unit = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     val start = System.currentTimeMillis
     report.getArtifacts match {
       case typed: java.util.List[Artifact @unchecked] =>

ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/SbtChainResolver.scala

@@ -433,9 +433,9 @@ private[sbt] case class SbtChainResolver(
         case _ =>
           None
       }
-    val artifactRefs = md.getConfigurations.toIterator flatMap { conf =>
+    val artifactRefs = md.getConfigurations.iterator flatMap { conf =>
-      md.getArtifacts(conf.getName).toIterator flatMap { af =>
+      md.getArtifacts(conf.getName).iterator flatMap { af =>
-        artifactRef(af, data.getDate).toIterator
+        artifactRef(af, data.getDate).iterator
       }
     }
     if (artifactRefs.hasNext) Some(artifactRefs.next())

ivy/src/main/scala/sbt/internal/librarymanagement/mavenint/PomExtraDependencyAttributes.scala

@@ -35,7 +35,7 @@ object PomExtraDependencyAttributes {
   def readFromAether(
       props: java.util.Map[String, AnyRef]
   ): Map[ModuleRevisionId, Map[String, String]] = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     (props.asScala get ExtraAttributesKey) match {
       case None => Map.empty
       case Some(str) =>
@@ -74,13 +74,13 @@ object PomExtraDependencyAttributes {
     }
 
   def qualifiedExtra(item: ExtendableItem): Map[String, String] = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     item.getQualifiedExtraAttributes.asInstanceOf[java.util.Map[String, String]].asScala.toMap
   }
   def filterCustomExtra(item: ExtendableItem, include: Boolean): Map[String, String] =
-    (qualifiedExtra(item) filterKeys { k =>
+    qualifiedExtra(item).view.filterKeys { k =>
       qualifiedIsExtra(k) == include
-    }).toMap
+    }.toMap
 
   def qualifiedIsExtra(k: String): Boolean =
     k.endsWith(ScalaVersionKey) || k.endsWith(SbtVersionKey)
@@ -89,7 +89,7 @@ object PomExtraDependencyAttributes {
   // This makes the id suitable as a key to associate a dependency parsed from a <dependency> element
   //  with the extra attributes from the <properties> section
   def simplify(id: ModuleRevisionId): ModuleRevisionId = {
-    import scala.collection.JavaConverters._
+    import scala.jdk.CollectionConverters._
     ModuleRevisionId.newInstance(
       id.getOrganisation,
       id.getName,

ivy/src/main/scala/sbt/librarymanagement/ivy/Credentials.scala

@@ -67,7 +67,7 @@ object Credentials {
   private[this] val UserKeys = List("user", "user.name", "username")
   private[this] val PasswordKeys = List("password", "pwd", "pass", "passwd")
 
-  import collection.JavaConverters._
+  import scala.jdk.CollectionConverters._
   private[this] def read(from: File): Map[String, String] = {
     val properties = new java.util.Properties
     IO.load(properties, from)

ivy/src/test/scala/sbt/internal/librarymanagement/FrozenModeSpec.scala

@@ -34,18 +34,23 @@ object FrozenModeSpec extends BaseIvySpecification {
     val toResolve = module(defaultModuleId, stoml, None, normalOptions)
     val onlineResolution = update(toResolve, onlineConf)
     assert(onlineResolution.isRight)
-    val numberResolved = onlineResolution.right.get.allModules.size
+    val numberResolved =
-    val numberReportsResolved = onlineResolution.right.get.allModuleReports.size
+      onlineResolution.fold(e => throw e.resolveException, identity).allModules.size
+    val numberReportsResolved =
+      onlineResolution.fold(e => throw e.resolveException, identity).allModuleReports.size
 
     cleanIvyCache()
     val singleFrozenResolution = update(toResolve, frozenConf)
     assert(singleFrozenResolution.isRight)
     assert(
-      singleFrozenResolution.right.get.allModules.size == 1,
+      singleFrozenResolution.fold(e => throw e.resolveException, identity).allModules.size == 1,
       s"The number of explicit modules in frozen mode should 1"
     )
     assert(
-      singleFrozenResolution.right.get.allModuleReports.size == 1,
+      singleFrozenResolution
+        .fold(e => throw e.resolveException, identity)
+        .allModuleReports
+        .size == 1,
       s"The number of explicit module reports in frozen mode should 1"
     )
 
@@ -55,11 +60,17 @@ object FrozenModeSpec extends BaseIvySpecification {
     val frozenResolution = update(toExplicitResolve, frozenConf)
     assert(frozenResolution.isRight)
     assert(
-      frozenResolution.right.get.allModules.size == numberResolved,
+      frozenResolution
+        .fold(e => throw e.resolveException, identity)
+        .allModules
+        .size == numberResolved,
       s"The number of explicit modules in frozen mode should be equal than $numberResolved"
     )
     assert(
-      frozenResolution.right.get.allModuleReports.size == numberReportsResolved,
+      frozenResolution
+        .fold(e => throw e.resolveException, identity)
+        .allModuleReports
+        .size == numberReportsResolved,
       s"The number of explicit module reports in frozen mode should be equal than $numberReportsResolved"
     )
   }

ivy/src/test/scala/sbt/internal/librarymanagement/IvyRepoSpec.scala

@@ -84,8 +84,7 @@ object IvyRepoSpec extends BaseIvySpecification {
     val report2 =
       lmEngine()
         .updateClassifiers(gcm, UnresolvedWarningConfiguration(), Vector(), log)
-        .right
+        .fold(e => throw e.resolveException, identity)
-        .get
 
     import Inside._
     inside(report2.configuration(ConfigRef("compile")).map(_.modules)) { case Some(Seq(mr)) =>

ivy/src/test/scala/sbt/internal/librarymanagement/ManagedChecksumsSpec.scala

@@ -51,7 +51,7 @@ object ManagedChecksumsSpec extends BaseIvySpecification {
     val toResolve = module(defaultModuleId, dependencies, None, updateOptions)
     val res = IvyActions.updateEither(toResolve, onlineConf, warningConf, log)
     assert(res.isRight, s"Resolution with managed checksums failed! $res")
-    val updateReport = res.right.get
+    val updateReport = res.fold(e => throw e.resolveException, identity)
     val allModuleReports = updateReport.configurations.flatMap(_.modules)
     val allArtifacts: Seq[File] = allModuleReports.flatMap(_.artifacts.map(_._2))
     allArtifacts.foreach(assertChecksumExists)

ivy/src/test/scala/sbt/internal/librarymanagement/ModuleResolversTest.scala

@@ -26,7 +26,8 @@ object ModuleResolversTest extends BaseIvySpecification {
     val ivyModule = module(stubModule, dependencies, None, updateOptions)
     val normalResolution = ivyUpdateEither(ivyModule)
     assert(normalResolution.isRight)
-    val normalResolutionTime = normalResolution.right.get.stats.resolveTime
+    val normalResolutionTime =
+      normalResolution.fold(e => throw e.resolveException, identity).stats.resolveTime
 
     cleanIvyCache()
     val moduleResolvers = Map(
@@ -37,7 +38,8 @@ object ModuleResolversTest extends BaseIvySpecification {
     val ivyModule2 = module(stubModule, dependencies, None, customUpdateOptions)
     val fasterResolution = ivyUpdateEither(ivyModule2)
     assert(fasterResolution.isRight)
-    val fasterResolutionTime = fasterResolution.right.get.stats.resolveTime
+    val fasterResolutionTime =
+      fasterResolution.fold(e => throw e.resolveException, identity).stats.resolveTime
 
     // THis is left on purpose so that in spurious error we see the times
     println(s"NORMAL RESOLUTION TIME $normalResolutionTime")

ivy/src/test/scala/sbt/internal/librarymanagement/OfflineModeSpec.scala

@@ -34,14 +34,16 @@ object OfflineModeSpec extends BaseIvySpecification {
     val onlineResolution =
       IvyActions.updateEither(toResolve, onlineConf, warningConf, log)
     assert(onlineResolution.isRight)
-    assert(onlineResolution.right.exists(report => report.stats.resolveTime > 0))
+    assert(onlineResolution.toOption.exists(report => report.stats.resolveTime > 0))
 
-    val originalResolveTime = onlineResolution.right.get.stats.resolveTime
+    val originalResolveTime =
+      onlineResolution.fold(e => throw e.resolveException, identity).stats.resolveTime
     val offlineResolution =
       IvyActions.updateEither(toResolve, offlineConf, warningConf, log)
     assert(offlineResolution.isRight)
 
-    val resolveTime = offlineResolution.right.get.stats.resolveTime
+    val resolveTime =
+      offlineResolution.fold(e => throw e.resolveException, identity).stats.resolveTime
     assert(originalResolveTime > resolveTime)
   }