build(gradle)!: Build with Java 21

As fcfab20 decoupled the Java version to use for analysis of Gradle
projects from the Java version running ORT, finally update the Java
version from 11 / 17 to 21. See [1] for context.

Also stop using the deprecated `Thread.id` in favor of `Thread.threadId()`
and ensure to run with Java 21 when generating completion scripts.

[1]: #8249

Signed-off-by: Sebastian Schuberth <[email protected]>

.github/workflows/static-analysis.yml

@@ -37,6 +37,11 @@ jobs:
     steps:
     - name: Checkout Repository
       uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+    - name: Setup Java
+      uses: actions/setup-java@2dfa2011c5b2a0f1489bf9e433881c92c1631f88 # v4
+      with:
+        distribution: temurin
+        java-version: 21
     - name: Setup Gradle
       uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4
     - name: Generate completions

docker/versions.dockerfile

@@ -10,7 +10,7 @@ ARG DART_VERSION=2.18.4
 ARG DOTNET_VERSION=6.0
 ARG GO_VERSION=1.23.0
 ARG HASKELL_STACK_VERSION=2.13.1
-ARG JAVA_VERSION=17
+ARG JAVA_VERSION=21
 ARG LICENSEE_VERSION=9.15.3
 ARG NODEJS_VERSION=20.14.0
 ARG NPM_VERSION=10.8.3

gradle.properties

@@ -26,7 +26,7 @@ ksp.useKSP2 = true
 
 # The version of the JDK to use for building ORT.
 # Keep this aligned with `toolchainVersion` in `gradle/gradle-daemon-jvm.properties`.
-javaLanguageVersion = 11
+javaLanguageVersion = 21
 
 # The version of the SPDX license list which is used to import license texts and generate SPDX enums. Must be a valid
 # tag, see https://github.com/spdx/license-list-data/tags.

gradle/gradle-daemon-jvm.properties

@@ -1,4 +1,4 @@
 # The version of the JDK to use for building ORT.
 # Keep this aligned with `javaLanguageVersion` in `gradle.properties`.
-toolchainVersion = 11
+toolchainVersion = 21
 toolchainVendor = Adoptium

plugins/scanners/scanoss/src/main/kotlin/ScanOss.kt

@@ -98,7 +98,7 @@ class ScanOss internal constructor(
         val result = service.scan(
             wfpString,
             context.labels["scanOssContext"],
-            context.labels["scanOssId"]?.toIntOrNull() ?: Thread.currentThread().id.toInt()
+            context.labels["scanOssId"]?.toIntOrNull() ?: Thread.currentThread().threadId().toInt()
         )
 
         // Replace the anonymized UUIDs by their file paths.