update publishing script

publish.gradle

@@ -1,7 +1,7 @@
 apply plugin: 'maven-publish'
 
 task javadocsJar(type: Jar) {
-    classifier = 'javadoc'
+    archiveClassifier = 'javadoc'
 }
 
 publishing {
@@ -96,4 +96,27 @@ if (project.hasProperty("signing.gnupg.keyName")) {
             dependsOn(it)
         }
     }
+
+    // Workaround to make android sign operations depend on signing tasks
+    project.getTasks().withType(AbstractPublishToMaven.class).configureEach {
+        def signingTasks = project.getTasks().withType(Sign.class)
+        mustRunAfter(signingTasks)
+    }
+    // Workaround to make test tasks use sign
+    project.getTasks().withType(Sign.class).configureEach { signTask ->
+        def withoutSign = (signTask.name.startsWith("sign") ? signTask.name.minus("sign") : signTask.name)
+        def pubName = withoutSign.endsWith("Publication") ? withoutSign.substring(0, withoutSign.length() - "Publication".length()) : withoutSign
+        // These tasks only exist for native targets, hence findByName() to avoid trying to find them for other targets
+
+        // Task ':linkDebugTest<platform>' uses this output of task ':sign<platform>Publication' without declaring an explicit or implicit dependency
+        def debugTestTask = tasks.findByName("linkDebugTest$pubName")
+        if (debugTestTask != null) {
+            signTask.mustRunAfter(debugTestTask)
+        }
+        // Task ':compileTestKotlin<platform>' uses this output of task ':sign<platform>Publication' without declaring an explicit or implicit dependency
+        def testTask = tasks.findByName("compileTestKotlin$pubName")
+        if (testTask != null) {
+            signTask.mustRunAfter(testTask)
+        }
+    }
 }