Merge branch 'issue1099' of https://github.com/madhav2348/processing4 into issue1099

Author: madhav2348

java/libraries/serial/build.gradle.kts

@@ -18,6 +18,7 @@ dependencies {
 
 tasks.register("checkCore") {
     doFirst {
+
         if (!coreJar.exists()) {
             throw GradleException("Missing core.jar at $coreJar. Please build the core module first.")
         }
@@ -29,4 +30,5 @@ tasks.register<Jar>("serialJar") {
     archiveBaseName.set("serial")
     destinationDirectory.set(file("library"))
     from(sourceSets.main.get().output)
-}
+}
+