diff --git a/build.gradle b/build.gradle
index a7c8b0835..493c2e11d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -90,7 +90,9 @@ allprojects {
       "--add-exports=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED",
       "--add-exports=jdk.compiler/com.sun.tools.javac.parser=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-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
+      "--add-opens=java.base/java.lang=ALL-UNNAMED",
+      "--add-opens=java.base/java.util=ALL-UNNAMED"
     ]
       //https://stackoverflow.com/questions/3963708/gradle-how-to-display-test-results-in-the-console-in-real-time
       testLogging {
diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index 6c10ead1d..0e1e9fe80 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -7,6 +7,13 @@ repositories {
     mavenCentral()
 }
 
+if ((JavaVersion.current().getMajorVersion() as int) >= 17) {
+    tasks.withType(Test).configureEach {
+        jvmArgs(["--add-opens=java.base/java.lang=ALL-UNNAMED",
+                 "--add-opens=java.base/java.util=ALL-UNNAMED"])
+    }
+}
+
 dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter-api:5.7.2")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.7.2")