Disable gradle parallel option (Fixes #537)

ST-DDT · ST-DDT · commit 4086ae013143 · 2021-05-01T19:23:27.000+02:00
diff --git a/gradle.properties b/gradle.properties
@@ -1,5 +1,7 @@
 org.gradle.caching=true
-org.gradle.parallel=true
+# It is not possible to use parallel,
+# because tests in multiple modules require the same ports
+#org.gradle.parallel=true
 org.gradle.vfs.watch=true
 org.gradle.daemon=true
 
