Enable -Xsource:3 and reduce noise

build.sbt

@@ -11,7 +11,7 @@ inThisBuild(Seq(
   ),
   scmInfo := Some(ScmInfo(url("https://github.com/lightbend/mima"), "scm:git:[email protected]:lightbend/mima.git")),
   dynverVTagPrefix := false,
-  scalacOptions := Seq("-feature", "-deprecation", "-Xlint"),
+  scalacOptions ++= Seq("-feature", "-Xsource:3", "-Xlint", "-Wconf:cat=deprecation&msg=Stream|JavaConverters:s"),
   resolvers ++= (if (isStaging) List(stagingResolver) else Nil),
   publishTo := Some(if (isSnapshot.value) Opts.resolver.sonatypeSnapshots else Opts.resolver.sonatypeStaging),
 ))

core/src/main/scala/com/typesafe/tools/mima/core/MimaUnpickler.scala

@@ -42,7 +42,7 @@ object MimaUnpickler {
     }
 
     def readEnd(): Int              = buf.readNat() + buf.readIndex
-    def readNameRef(): Name         = at(buf.readNat(), readName)
+    def readNameRef(): Name         = at(buf.readNat(), () => readName())
     def readSymRef(): SymInfo       = at(buf.readNat(), () => readSym(buf.readByte()))
     def readSymbolRef(): SymbolInfo = at(buf.readNat(), () => readSymbol(buf.readByte()))
     def readTypeRef(): TypeInfo     = at(buf.readNat(), () => readType())
@@ -136,7 +136,7 @@ object MimaUnpickler {
       }
     }
 
-    for (num <- index.indices) at(num, readEntry)
+    for (num <- index.indices) at(num, () => readEntry())
 
     if (doPrint) {
       entries.iterator.zipWithIndex.filter(_._1 != null).foreach { case (entry, num) =>

core/src/main/scala/com/typesafe/tools/mima/core/PicklePrinter.scala

@@ -141,13 +141,13 @@ object PicklePrinter {
   /** Returns the buffer as a sequence of (Int, Array[Byte]) representing
    *  (tag, data) of the individual entries.  Saves and restores buffer state.
    */
-  private def toIndexedSeq(buf: PickleBuffer): IndexedSeq[(Int, Array[Byte])] = {
+  private def toIndexedSeq(buf: PickleBuffer): IndexedSeq[(Int, Array[Byte])] = (
     for (idx <- buf.createIndex) yield {
       buf.atIndex(idx) {
         val tag = buf.readByte()
         val len = buf.readNat()
         tag -> buf.bytes.slice(buf.readIndex, buf.readIndex + len)
       }
     }
-  }
+  ).toIndexedSeq
 }

core/src/main/scala/com/typesafe/tools/mima/core/ProblemReporting.scala

@@ -8,7 +8,10 @@ private[mima] object ProblemReporting {
     val VersionRegex = """(\d+)\.?(\d+)?\.?(.*)?""".r
     def int(versionPart: String) =
       Try(versionPart.replace("x", Short.MaxValue.toString).filter(_.isDigit).toInt).getOrElse(0)
-    Ordering[(Int, Int, Int)].on[String] { case VersionRegex(x, y, z) => (int(x), int(y), int(z)) }
+    Ordering[(Int, Int, Int)].on[String] {
+      case VersionRegex(x, y, z) => (int(x), int(y), int(z))
+      case bad => throw new IllegalArgumentException(bad)
+    }
   }
 
   def isReported(

core/src/main/scala/com/typesafe/tools/mima/core/TastyFormat.scala

@@ -30,13 +30,13 @@ object TastyFormat {
    *   Name           = UTF8              Length UTF8-CodePoint*
    *                    QUALIFIED         Length qualified_NameRef selector_NameRef               -- A.B
    *                    EXPANDED          Length qualified_NameRef selector_NameRef               -- A$$B, semantically a NameKinds.ExpandedName
-   *                    EXPANDPREFIX      Length qualified_NameRef selector_NameRef               -- A$B, prefix of expanded name, see NamedKinds.ExpandPrefixName
+   *                    EXPANDPREFIX      Length qualified_NameRef selector_NameRef               -- A\$B, prefix of expanded name, see NamedKinds.ExpandPrefixName
    *
    *                    UNIQUE            Length separator_NameRef uniqid_Nat underlying_NameRef? -- Unique name A<separator><number>
    *                    DEFAULTGETTER     Length underlying_NameRef index_Nat                     -- DefaultGetter$<number>
    *
-   *                    SUPERACCESSOR     Length underlying_NameRef                               -- super$A
-   *                    INLINEACCESSOR    Length underlying_NameRef                               -- inline$A
+   *                    SUPERACCESSOR     Length underlying_NameRef                               -- super\$A
+   *                    INLINEACCESSOR    Length underlying_NameRef                               -- inline\$A
    *                    OBJECTCLASS       Length underlying_NameRef                               -- A$  (name of the module class for module A)
    *
    *                    SIGNED            Length original_NameRef resultSig_NameRef ParamSig*     -- name + signature

core/src/main/scala/com/typesafe/tools/mima/lib/analyze/field/FieldChecker.scala

@@ -11,7 +11,7 @@ private[analyze] object FieldChecker {
     if (oldfld.nonAccessible) None else {
       val newflds = newclazz.lookupClassFields(oldfld)
       if (newflds.hasNext) {
-        val newfld = newflds.next
+        val newfld = newflds.next()
         if (!newfld.isPublic) Some(InaccessibleFieldProblem(newfld))
         else if (oldfld.descriptor != newfld.descriptor) Some(IncompatibleFieldTypeProblem(oldfld, newfld))
         else if (oldfld.isStatic && !newfld.isStatic) Some(StaticVirtualMemberProblem(oldfld))