diff --git a/project/Build.scala b/project/Build.scala
index da1e8eb4c04c..9afc2bd2e65f 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -1241,7 +1241,7 @@ object Build {
       libraryDependencies += ("org.scala-js" %%% "scalajs-dom" % "1.1.0").cross(CrossVersion.for3Use2_13)
     )
 
-  def generateDocumentation(targets: Seq[String], name: String, outDir: String, ref: String, params: Seq[String] = Nil, usingScript: Boolean = true) =
+  def generateDocumentation(targets: Seq[String], name: String, outDir: String, ref: String, params: Seq[String] = Nil) =
     Def.taskDyn {
       val distLocation = (dist / pack).value
       val projectVersion = version.value
@@ -1265,20 +1265,10 @@ object Build {
         s"-source-links:github://lampepfl/dotty/$referenceVersion",
       ) ++ scalacOptionsDocSettings ++ revision ++ params ++ targets
       import _root_.scala.sys.process._
-      if (usingScript)
-        Def.task((s"$distLocation/bin/scaladoc" +: cmd).!)
-      else {
-        val escapedCmd = cmd.map(arg => if(arg.contains(" ")) s""""$arg"""" else arg)
-        Def.task {
-          try {
-            (Compile / run).toTask(escapedCmd.mkString(" ", " ", "")).value
-            0
-          } catch {
-            case _ : Throwable => 1
-          }
-        }
+      val escapedCmd = cmd.map(arg => if(arg.contains(" ")) s""""$arg"""" else arg)
+      Def.task {
+        (Compile / run).toTask(escapedCmd.mkString(" ", " ", "")).value
       }
-
     }
 
   val SourceLinksIntegrationTest = config("sourceLinksIntegrationTest") extend Test
@@ -1325,7 +1315,7 @@ object Build {
       generateSelfDocumentation := Def.taskDyn {
         generateDocumentation(
           (Compile / classDirectory).value.getAbsolutePath :: Nil,
-          "scaladoc", "scaladoc/output/self", VersionUtil.gitHash
+          "scaladoc", "scaladoc/output/self", VersionUtil.gitHash, Seq("-usejavacp")
         )
       }.value,
       generateScalaDocumentation := Def.inputTaskDyn {
@@ -1366,8 +1356,7 @@ object Build {
             s"-source-links:docs=github://lampepfl/dotty/master#docs",
             "-doc-root-content", docRootFile.toString,
             "-Ydocument-synthetic-types"
-          ), usingScript = false
-        ))
+          )))
       }.evaluated,
 
       generateTestcasesDocumentation := Def.taskDyn {
@@ -1375,7 +1364,8 @@ object Build {
           (Test / Build.testcasesOutputDir).value,
           "scaladoc testcases",
           "scaladoc/output/testcases",
-          "master"
+          "master",
+          Seq("-usejavacp")
         )
       }.value,
 
diff --git a/project/scripts/cmdTests b/project/scripts/cmdTests
index 37bb8bcb706e..0e0f75774d6a 100755
--- a/project/scripts/cmdTests
+++ b/project/scripts/cmdTests
@@ -61,6 +61,28 @@ echo "testing -Ythrough-tasty"
 clear_out "$OUT"
 "$SBT" ";scalac -Ythrough-tasty $SOURCE"
 
+echo "testing scaladoc script"
+clear_out "$OUT"
+clear_out "$OUT1"
+"$SBT" "scaladoc/generateTestcasesDocumentation" > "$tmp" 2>&1 || echo "generated testcases project with sbt"
+dist/target/pack/bin/scaladoc \
+  -d "$OUT1" \
+  -project "scaladoc testcases" \
+  -source-links:out/bootstrap/stdlib-bootstrapped/scala-3.0.2-RC1-bin-SNAPSHOT-nonbootstrapped/src_managed/main/scala-library-src=github://scala/scala/v2.13.6#src/library \
+  -source-links:out/bootstrap/stdlib-bootstrapped/scala-3.0.2-RC1-bin-SNAPSHOT-nonbootstrapped/src_managed/main/dotty-library-src=github://lampepfl/dotty/3.0.0#library/src \
+  -source-links:github://lampepfl/dotty/3.0.0 \
+  "-external-mappings:.*scala.*::scaladoc3::http://dotty.epfl.ch/api/,.*java.*::javadoc::https://docs.oracle.com/javase/8/docs/api/" \
+  "-skip-by-regex:.+\.internal($|\..+)" \
+  "-skip-by-regex:.+\.impl($|\..+)" \
+  -project-logo docs/logo.svg \
+  -social-links:github::https://github.com/lampepfl/dotty,gitter::https://gitter.im/scala/scala,twitter::https://twitter.com/scala_lang \
+  "-skip-by-id:scala.runtime.stdLibPatches" \
+  "-skip-by-id:scala.runtime.MatchCase" \
+  -project-footer "Copyright (c) 2002-2021, LAMP/EPFL" \
+  -author -groups -revision master -project-version 3.0.2-RC1-bin-SNAPSHOT \
+  out/bootstrap/scaladoc-testcases/scala-3.0.2-RC1-bin-SNAPSHOT-nonbootstrapped/classes > "$tmp" 2>&1 || echo "generated testcases project with scripts"
+diff -rq "$OUT1" "scaladoc/output/testcases"
+
 ## Disabled because of flakeyness, should be changed to not depend on sbt
 # echo "running Vulpix meta test"
 # tmp=$(mktemp)
diff --git a/scaladoc-testcases/src/tests/snippetCompilerTests.scala b/scaladoc-testcases/src/tests/snippetCompilerTests.scala
index 85d4db4ee0a2..3d03438f7f3c 100644
--- a/scaladoc-testcases/src/tests/snippetCompilerTests.scala
+++ b/scaladoc-testcases/src/tests/snippetCompilerTests.scala
@@ -2,7 +2,7 @@ package tests
 package snippetCompilerTests
 
 /**
-  * ```scala sc:compile
+  * ```scala sc:fail
   * //{
   * import scala.collection.Seq
   * //}
@@ -34,7 +34,7 @@ package snippetCompilerTests
   * a
   * ```
   *
-  * ```scala sc:fail
+  * ```scala sc:compile
   * def a = 2
   * ```
   *
@@ -48,7 +48,7 @@ class A {
 }
 
 /**
- * ```scala sc:compile
+ * ```scala sc:fail
  * val c: Int = 4.5
  * ```
  */
@@ -58,7 +58,7 @@ trait Quotes {
   val reflect: reflectModule = ???
   trait reflectModule { self: reflect.type =>
     /**
-      * ```scala sc:compile
+      * ```scala sc:fail
       * 2 + List()
       * ```
       *
diff --git a/scaladoc-testcases/src/tests/snippetTestcase1.scala b/scaladoc-testcases/src/tests/snippetTestcase1.scala
index b0907f983946..4a2960092c95 100644
--- a/scaladoc-testcases/src/tests/snippetTestcase1.scala
+++ b/scaladoc-testcases/src/tests/snippetTestcase1.scala
@@ -4,7 +4,7 @@ class SnippetTestcase1:
   /**
     * SNIPPET(OUTERLINEOFFSET:8,OUTERCOLUMNOFFSET:6,INNERLINEOFFSET:3,INNERCOLUMNOFFSET:2)
     * ERROR(LINE:8,COLUMN:8)
-    * ```scala sc:compile
+    * ```scala sc:fail
     * 2 + List()
     * ```
     *
diff --git a/scaladoc-testcases/src/tests/snippetTestcase2.scala b/scaladoc-testcases/src/tests/snippetTestcase2.scala
index 8e3fd0f33744..e68a339d77e8 100644
--- a/scaladoc-testcases/src/tests/snippetTestcase2.scala
+++ b/scaladoc-testcases/src/tests/snippetTestcase2.scala
@@ -9,7 +9,7 @@ trait Quotes2[A] {
       /**
         * SNIPPET(OUTERLINEOFFSET:13,OUTERCOLUMNOFFSET:10,INNERLINEOFFSET:6,INNERCOLUMNOFFSET:6)
         * ERROR(LINE:13,COLUMN:12)
-        * ```scala sc:compile
+        * ```scala sc:fail
         * 2 + List()
         * ```
         *
@@ -21,7 +21,7 @@ trait Quotes2[A] {
       /**
         * SNIPPET(OUTERLINEOFFSET:25,OUTERCOLUMNOFFSET:10,INNERLINEOFFSET:7,INNERCOLUMNOFFSET:6)
         * ERROR(LINE:25,COLUMN:12)
-        * ```scala sc:compile
+        * ```scala sc:fail
         * 2 + List()
         * ```
         *
@@ -35,7 +35,7 @@ trait Quotes2[A] {
       /**
         * SNIPPET(OUTERLINEOFFSET:39,OUTERCOLUMNOFFSET:10,INNERLINEOFFSET:5,INNERCOLUMNOFFSET:6)
         * ERROR(LINE:39,COLUMN:12)
-        * ```scala sc:compile
+        * ```scala sc:fail
         * 2 + List()
         * ```
         *
@@ -47,7 +47,7 @@ trait Quotes2[A] {
       /**
         * SNIPPET(OUTERLINEOFFSET:51,OUTERCOLUMNOFFSET:10,INNERLINEOFFSET:6,INNERCOLUMNOFFSET:6)
         * ERROR(LINE:51,COLUMN:12)
-        * ```scala sc:compile
+        * ```scala sc:fail
         * 2 + List()
         * ```
         *
diff --git a/scaladoc/src/dotty/tools/scaladoc/renderers/DotDiagramBuilder.scala b/scaladoc/src/dotty/tools/scaladoc/renderers/DotDiagramBuilder.scala
index 5af97d7dc9fb..57df26611b12 100644
--- a/scaladoc/src/dotty/tools/scaladoc/renderers/DotDiagramBuilder.scala
+++ b/scaladoc/src/dotty/tools/scaladoc/renderers/DotDiagramBuilder.scala
@@ -15,7 +15,7 @@ object DotDiagramBuilder:
 
     val vWithId = diagram.verteciesWithId
     val sealedNodes = diagram.sealedNodes
-    val vertecies = vWithId.map { (vertex, id) =>
+    val vertecies = vWithId.toList.sortBy((_, id) => id).map { (vertex, id) =>
       s"""node${id} [id=node${id}, label="${getHtmlLabel(vertex, renderer, sealedNodes)}", style="${getStyle(vertex.kind)}"];\n"""
     }.mkString
 
diff --git a/scaladoc/src/dotty/tools/scaladoc/tasty/ClassLikeSupport.scala b/scaladoc/src/dotty/tools/scaladoc/tasty/ClassLikeSupport.scala
index c3a539af766e..27f023fecc39 100644
--- a/scaladoc/src/dotty/tools/scaladoc/tasty/ClassLikeSupport.scala
+++ b/scaladoc/src/dotty/tools/scaladoc/tasty/ClassLikeSupport.scala
@@ -94,7 +94,7 @@ trait ClassLikeSupport:
     )
 
     if signatureOnly then baseMember else baseMember.copy(
-        members = classDef.extractPatchedMembers,
+        members = classDef.extractPatchedMembers.sortBy(m => (m.name, m.kind.name)),
         directParents = classDef.getParentsAsLinkToTypes,
         parents = supertypes,
         companion = classDef.getCompanion