diff --git a/.ci-build-without-test.sh b/.ci-build-without-test.sh
old mode 100644
new mode 100755
diff --git a/.ci-build.sh b/.ci-build.sh
old mode 100644
new mode 100755
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3a67d6b..2750514 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -9,11 +9,16 @@ on:
 jobs:
   build:
     strategy:
+      max-parallel: 1
       matrix:
-        jdk: [ 8, 11, 17 ]
+        jdk: [ 11, 8, 17 ]
     runs-on: ubuntu-latest
 
     steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.10.0
+        with:
+          access_token: ${{ github.token }}
       - name: Pull Request Checkout
         uses: actions/checkout@v2
         with:
@@ -28,5 +33,34 @@ jobs:
         with:
           java-version: ${{matrix.jdk}}
           distribution: 'temurin'
-      - name: Build and test
-        run: ./.ci-build.sh
+      - name: Build
+        id: build
+        run: ./.ci-build-without-test.sh
+
+      - name: PICO Typecheck Test
+        if: ${{ steps.build.outcome == 'success' }}
+        run: ./gradlew ImmutabilityTypecheckTest
+
+      - name: PICO Typecheck AllSystems Test
+        if: ${{ steps.build.outcome == 'success' }}
+        run: ./gradlew ImmutabilityTypecheckBaseAllSystemsTest
+
+      - name: PICO Typecheck Extended Test
+        if: ${{ steps.build.outcome == 'success' }}
+        run: ./gradlew ImmutabilityTypecheckExtendedTest
+
+      - name: PICO Glacier TypeCheck Test
+        if: ${{ steps.build.outcome == 'success' }}
+        run: ./gradlew ImmutabilityTypecheckGlacierTest
+
+      - name: PICO Inference Initial Typecheck Test
+        if: ${{ steps.build.outcome == 'success' }}
+        run: ./gradlew ImmutabilityInferenceInitialTypecheckTest
+
+      - name: PICO Inference Test
+        if: ${{ steps.build.outcome == 'success' }}
+        run: ./gradlew ImmutabilityInferenceTest
+
+      - name: PICO ReIm Inference Test
+        if: ${{ steps.build.outcome == 'success' }}
+        run: ./gradlew ImmutabilityReImInferenceTest
diff --git a/build.gradle b/build.gradle
index 6ed9539..9ba9976 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,12 +9,24 @@ plugins {
 apply plugin: 'java'
 
 ext {
-    assert JavaVersion.current() == JavaVersion.VERSION_1_8: "Set JAVA_HOME to JDK 8. Current version is ${JavaVersion.current()}"
+    isJava8 = JavaVersion.current() == JavaVersion.VERSION_1_8
     jsr308 = file(new File("..")).absolutePath
     cfPath = "${jsr308}/checker-framework"
     cfiPath = "${jsr308}/checker-framework-inference"
     afu = "${jsr308}/annotation-tools/annotation-file-utilities"
     picoPath = "${jsr308}/immutability"
+    compilerArgsForRunningCF = [
+            // Keep in sync with checker-framework/build.gradle.
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED",
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED",
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED",
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED",
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED",
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
+            "--add-exports", "jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
+            "--add-opens", "jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED",
+    ]
 }
 
 println '==================================='
@@ -96,7 +108,11 @@ afterEvaluate {
 
         environment "external_checker_classpath", "${picoPath}/build/classes/java/main:${picoPath}/build/resources/main"
 
-        jvmArgs "-Xbootclasspath/p:${cfiPath}/dist/javac.jar"
+        if (isJava8) {
+            jvmArgs "-Xbootclasspath/p:${cfiPath}/dist/javac.jar"
+        } else {
+            jvmArgs += compilerArgsForRunningCF
+        }
 
         testLogging {
             // Always run the tests