Kotlin: Update integration tests from -language-version 1.9 to 2.0

andersfugmann · Copilot · andersfugmann · commit f3037d68ca66 · 2026-06-08T16:25:10.000+02:00
Kotlin 2.4.0 no longer supports -language-version 1.9. Update all
integration tests that explicitly pass this flag to use 2.0 instead.
Also update the extractor_information_kotlin1 expected output since
-language-version 2.0 causes the extractor to report 'Uses Kotlin 2: true'.

Co-authored-by: Copilot &lt;223556219+Copilot@users.noreply.github.com&gt;
diff --git a/java/kotlin-extractor/BUILD.bazel b/java/kotlin-extractor/BUILD.bazel
@@ -106,7 +106,10 @@ kt_javac_options(
                 "%s/%s" % (v, target)
                 for _, target in _resources
             ] + (
-                ["%s/%s" % (v, _compiler_plugin_registrar_service[1])] if not version_less(v, "2.4.0") else []
+                ["%s/%s" % (
+                    v,
+                    _compiler_plugin_registrar_service[1],
+                )] if not version_less(v, "2.4.0") else []
             ),
             cmd = "\n".join([
                 "echo %s-%s > $(RULEDIR)/%s/com/github/codeql/extractor.name" % (_extractor_name_prefix, v, v),
diff --git a/java/ql/integration-tests/kotlin/all-platforms/enhanced-nullability/test.py b/java/ql/integration-tests/kotlin/all-platforms/enhanced-nullability/test.py
@@ -6,6 +6,6 @@ def test(codeql, java_full):
     codeql.database.create(
         command=[
             f"javac {java_srcs} -d build",
-            "kotlinc -language-version 1.9 user.kt -cp build",
+            "kotlinc -language-version 2.0 user.kt -cp build",
         ]
     )
diff --git a/java/ql/integration-tests/kotlin/all-platforms/external-property-overloads/test.py b/java/ql/integration-tests/kotlin/all-platforms/external-property-overloads/test.py
@@ -2,5 +2,5 @@
 
 
 def test(codeql, java_full):
-    commands.run("kotlinc -language-version 1.9 test.kt -d lib")
-    codeql.database.create(command="kotlinc -language-version 1.9 user.kt -cp lib")
+    commands.run("kotlinc -language-version 2.0 test.kt -d lib")
+    codeql.database.create(command="kotlinc -language-version 2.0 user.kt -cp lib")
diff --git a/java/ql/integration-tests/kotlin/all-platforms/extractor_information_kotlin1/ExtractorInformation.expected b/java/ql/integration-tests/kotlin/all-platforms/extractor_information_kotlin1/ExtractorInformation.expected
@@ -9,4 +9,4 @@
 | Percentage of calls with call target | 100 |
 | Total number of lines | 3 |
 | Total number of lines with extension kt | 3 |
-| Uses Kotlin 2: false | 1 |
+| Uses Kotlin 2: true | 1 |
diff --git a/java/ql/integration-tests/kotlin/all-platforms/extractor_information_kotlin1/test.py b/java/ql/integration-tests/kotlin/all-platforms/extractor_information_kotlin1/test.py
@@ -1,2 +1,2 @@
 def test(codeql, java_full):
-    codeql.database.create(command="kotlinc -J-Xmx2G -language-version 1.9 SomeClass.kt")
+    codeql.database.create(command="kotlinc -J-Xmx2G -language-version 2.0 SomeClass.kt")
diff --git a/java/ql/integration-tests/kotlin/all-platforms/file_classes/test.py b/java/ql/integration-tests/kotlin/all-platforms/file_classes/test.py
@@ -2,5 +2,5 @@
 
 
 def test(codeql, java_full):
-    commands.run("kotlinc -language-version 1.9 A.kt")
-    codeql.database.create(command="kotlinc -cp . -language-version 1.9 B.kt C.kt")
+    commands.run("kotlinc -language-version 2.0 A.kt")
+    codeql.database.create(command="kotlinc -cp . -language-version 2.0 B.kt C.kt")
diff --git a/java/ql/integration-tests/kotlin/all-platforms/java-interface-redeclares-tostring/test.py b/java/ql/integration-tests/kotlin/all-platforms/java-interface-redeclares-tostring/test.py
@@ -3,4 +3,4 @@
 
 def test(codeql, java_full):
     commands.run(["javac", "Test.java", "-d", "bin"])
-    codeql.database.create(command="kotlinc -language-version 1.9 user.kt -cp bin")
+    codeql.database.create(command="kotlinc -language-version 2.0 user.kt -cp bin")
diff --git a/java/ql/integration-tests/kotlin/all-platforms/kotlin_java_lowering_wildcards/test.py b/java/ql/integration-tests/kotlin/all-platforms/kotlin_java_lowering_wildcards/test.py
@@ -8,6 +8,6 @@ def test(codeql, java_full):
         command=[
             "kotlinc kotlindefns.kt",
             "javac JavaUser.java JavaDefns.java -cp .",
-            "kotlinc -language-version 1.9 -cp . kotlinuser.kt",
+            "kotlinc -language-version 2.0 -cp . kotlinuser.kt",
         ]
     )

Original file line number	Diff line number	Diff line change
`@@ -6,6 +6,6 @@ def test(codeql, java_full):`
`6`	`6`	`codeql.database.create(`
`7`	`7`	`command=[`
`8`	`8`	`f"javac {java_srcs} -d build",`
`9`		`- "kotlinc -language-version 1.9 user.kt -cp build",`
	`9`	`+ "kotlinc -language-version 2.0 user.kt -cp build",`
`10`	`10`	`]`
`11`	`11`	`)`
Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`def test(codeql, java_full):`
`2`		`- codeql.database.create(command="kotlinc -J-Xmx2G -language-version 1.9 SomeClass.kt")`
	`2`	`+ codeql.database.create(command="kotlinc -J-Xmx2G -language-version 2.0 SomeClass.kt")`
Original file line number	Diff line number	Diff line change
`@@ -8,6 +8,6 @@ def test(codeql, java_full):`
`8`	`8`	`command=[`
`9`	`9`	`"kotlinc kotlindefns.kt",`
`10`	`10`	`"javac JavaUser.java JavaDefns.java -cp .",`
`11`		`- "kotlinc -language-version 1.9 -cp . kotlinuser.kt",`
	`11`	`+ "kotlinc -language-version 2.0 -cp . kotlinuser.kt",`
`12`	`12`	`]`
`13`	`13`	`)`