Java 21

Signed-off-by: Prabhu Subramanian <prabhu@appthreat.com>

.github/workflows/nodejstests.yml

@@ -7,8 +7,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        java-version: ['17', '19', '20', '21']
-        node-version: ['20.x']
+        java-version: ['21']
+        node-version: ['21.x']
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3

.github/workflows/npm-release.yml

@@ -17,14 +17,14 @@ jobs:
     - name: Use Node.js
       uses: actions/setup-node@v3
       with:
-        node-version: 18.x
+        node-version: '21.x'
         registry-url: https://registry.npmjs.org/
     - uses: coursier/cache-action@v6
     - name: Set up JDK
       uses: actions/setup-java@v3
       with:
         distribution: 'zulu'
-        java-version: '19'
+        java-version: '21'
     - name: Release
       run: |
         sbt scalafmtCheck stage assembly createDistribution

.github/workflows/repotests.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        java-version: ['17', '19', '20', '21']
+        java-version: ['21']
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
@@ -57,7 +57,7 @@ jobs:
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with:
-          node-version: '20.x'
+          node-version: '21.x'
       - run: |
           sbt stage astGenDlTask
           ./atom.sh -o /tmp/java.atom -l java $GITHUB_WORKSPACE/repotests/shiftleft-java-example -Dlog4j.configurationFile=log4j2.xml

build.sbt

@@ -12,8 +12,8 @@ val astGenVersion = "3.5.0"
 libraryDependencies ++= Seq(
   "com.github.pathikrit"    %% "better-files"      % "3.9.2",
   "com.github.scopt"        %% "scopt"             % "4.1.0",
-  "org.apache.logging.log4j" % "log4j-core"        % "2.20.0" % Optional,
-  "org.apache.logging.log4j" % "log4j-slf4j2-impl" % "2.20.0" % Optional,
+  "org.apache.logging.log4j" % "log4j-core"        % "2.21.1" % Optional,
+  "org.apache.logging.log4j" % "log4j-slf4j2-impl" % "2.21.1" % Optional,
   "io.appthreat"                %% "c2cpg"             % Versions.chen excludeAll (
     ExclusionRule(organization = "com.ibm.icu", name = "icu4j"),
     ExclusionRule(organization = "org.eclipse.platform", name = "org.eclipse.jface"),
@@ -35,17 +35,17 @@ Compile / doc / scalacOptions ++= Seq("-doc-title", "atom apidocs", "-doc-versio
 ThisBuild / scalacOptions ++= Seq(
   "-deprecation", // Emit warning and location for usages of deprecated APIs.
   "--release",
-  "17",
+  "21",
 )
 
 ThisBuild / compile / javacOptions ++= Seq(
   "-g", // debug symbols
   "-Xlint",
-  "--release=17"
+  "--release=21"
 ) ++ {
   // fail early if users with JDK11 try to run this
   val javaVersion = sys.props("java.specification.version").toFloat
-  assert(javaVersion.toInt >= 17, s"this build requires JDK17+ - you're using $javaVersion")
+  assert(javaVersion.toInt >= 21, s"this build requires JDK21+ - you're using $javaVersion")
   Nil
 }
 

src/main/scala/io/appthreat/atom/dataflows/DataFlowGraph.scala

@@ -65,7 +65,7 @@ object DataFlowGraph:
     private def DF_EDGES =
         Set(EdgeTypes.REACHING_DEF, EdgeTypes.CALL, EdgeTypes.REF)
     val exec: ExecutorService =
-        Executors.newWorkStealingPool(Runtime.getRuntime.availableProcessors / 2)
+        Executors.newVirtualThreadPerTaskExecutor()
 
     def buildFromSlice(slice: DataFlowSlice): DataFlowGraph =
         val dfNodes = slice.nodes

src/main/scala/io/appthreat/atom/slicing/DataFlowSlicing.scala

@@ -14,7 +14,7 @@ class DataFlowSlicing:
 
     implicit val resolver: ICallResolver = NoResolve
     protected val exec: ExecutorService =
-        Executors.newWorkStealingPool(Runtime.getRuntime.availableProcessors() / 2)
+        Executors.newVirtualThreadPerTaskExecutor()
     private val excludeOperatorCalls     = new AtomicBoolean(true)
     private val nodeCache                = new TrieMap[Long, SliceNode]()
     private var language: Option[String] = _

src/main/scala/io/appthreat/atom/slicing/UsageSlicing.scala

@@ -20,7 +20,7 @@ object UsageSlicing:
 
     private val resolver = NoResolve
     val exec: ExecutorService =
-        Executors.newWorkStealingPool(Runtime.getRuntime.availableProcessors() / 2)
+        Executors.newVirtualThreadPerTaskExecutor()
     private val constructorTypeMatcher = Pattern.compile(".*new (\\w+)\\(.*")
     private val excludeOperatorCalls   = new AtomicBoolean(true)
     private val FRAMEWORK_ROUTE        = "framework-route"