Multisrc bugfix and genkan refactor (#5707)

* themesource bugfix, refactor genkan

* revert 3da46570aa

lib/duktape-stub/build.gradle.kts

@@ -0,0 +1,16 @@
+plugins {
+    java
+}
+
+sourceSets {
+    main {
+        java {
+            srcDirs(listOf("src"))
+        }
+    }
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}

lib/duktape-stub/src/com/squareup/duktape/Duktape.java

@@ -0,0 +1,26 @@
+package com.squareup.duktape;
+
+import java.io.Closeable;
+import java.io.IOException;
+
+@SuppressWarnings("all")
+public class Duktape implements Closeable {
+
+    public static Duktape create() {
+        throw new RuntimeException("Stub!");
+    }
+
+    @Override
+    public synchronized void close() throws IOException {
+        throw new RuntimeException("Stub!");
+    }
+
+    public synchronized Object evaluate(String script) {
+        throw new RuntimeException("Stub!");
+    }
+
+    public synchronized <T> void set(String name, Class<T> type, T object) {
+        throw new RuntimeException("Stub!");
+    }
+
+}