diff --git a/build.xml b/build.xml
index 29c664c92..f3fe8bbbf 100644
--- a/build.xml
+++ b/build.xml
@@ -63,8 +63,8 @@
 
   <target name="compile-plugins" depends="init" description="compile canary plugin source">
     <javac includeantruntime="false" 
-           source="1.6" 
-           target="1.6" 
+           source="1.9" 
+           target="1.9" 
            destdir="${build}" 
            debug="true">
       <src path="${src.canary}"/>
diff --git a/src/docs/java/jscript.java b/src/docs/java/jscript.java
index 5b06fd541..d93af8a78 100644
--- a/src/docs/java/jscript.java
+++ b/src/docs/java/jscript.java
@@ -8,6 +8,12 @@ public static void main(String[] args) throws Exception
     {
         ScriptEngineManager factory = new ScriptEngineManager();
         ScriptEngine engine = factory.getEngineByName("JavaScript");
+
+        // https://docs.oracle.com/en/graalvm/enterprise/21/docs/reference-manual/js/ScriptEngine/
+        Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
+        bindings.put("polyglot.js.allowAllAccess", true);
+        bindings.put("polyglot.js.nashorn-compat", true);
+
         java.io.File file = new java.io.File(args[0]);
         engine.put("engine",engine);
         engine.put("args",args);
diff --git a/src/main/java/bukkit/org/scriptcraftjs/bukkit/ScriptCraftPlugin.java b/src/main/java/bukkit/org/scriptcraftjs/bukkit/ScriptCraftPlugin.java
index d65736910..1da63f281 100644
--- a/src/main/java/bukkit/org/scriptcraftjs/bukkit/ScriptCraftPlugin.java
+++ b/src/main/java/bukkit/org/scriptcraftjs/bukkit/ScriptCraftPlugin.java
@@ -4,7 +4,9 @@
 import org.bukkit.command.CommandSender;
 import org.bukkit.plugin.java.JavaPlugin;
 
+import javax.script.Bindings;
 import javax.script.Invocable;
+import javax.script.ScriptContext;
 import javax.script.ScriptEngine;
 import javax.script.ScriptEngineManager;
 import java.io.InputStreamReader;
@@ -32,6 +34,11 @@ public class ScriptCraftPlugin extends JavaPlugin
             if (this.engine == null) {
                 this.getLogger().severe(NO_JAVASCRIPT_MESSAGE);
             } else {
+                // https://docs.oracle.com/en/graalvm/enterprise/21/docs/reference-manual/js/ScriptEngine/
+                Bindings bindings = this.engine.getBindings(ScriptContext.ENGINE_SCOPE);
+                bindings.put("polyglot.js.allowAllAccess", true);
+                bindings.put("polyglot.js.nashorn-compat", true);
+
                 Invocable inv = (Invocable) this.engine;
                 this.engine.eval(new InputStreamReader(this.getResource("boot.js")));
                 inv.invokeFunction("__scboot", this, engine);
diff --git a/src/main/js/lib/task-bukkit.js b/src/main/js/lib/task-bukkit.js
index 444e1422a..a092f6ab0 100644
--- a/src/main/js/lib/task-bukkit.js
+++ b/src/main/js/lib/task-bukkit.js
@@ -2,9 +2,10 @@
 /*global __plugin, module, server*/
 function bukkitSetTimeout(callback, delayInMillis) {
   var delay = Math.ceil(delayInMillis / 50);
-  var task = server.scheduler[
-    'runTaskLater(org.bukkit.plugin.Plugin, java.lang.Runnable ,long)'
-  ](__plugin, callback, delay);
+  // https://github.com/walterhiggins/ScriptCraft/issues/396
+  var Run = Java.type('java.lang.Runnable');
+  var MyRun = Java.extend(Run, { run: callback });
+  var task = server.scheduler.runTaskLater(__plugin, new MyRun(), delay);
   return task;
 }
 function bukkitClearTimeout(task) {
@@ -12,9 +13,10 @@ function bukkitClearTimeout(task) {
 }
 function bukkitSetInterval(callback, intervalInMillis) {
   var delay = Math.ceil(intervalInMillis / 50);
-  var task = server.scheduler[
-    'runTaskTimer(org.bukkit.plugin.Plugin, java.lang.Runnable ,long, long)'
-  ](__plugin, callback, delay, delay);
+  // https://github.com/walterhiggins/ScriptCraft/issues/396
+  var Run = Java.type('java.lang.Runnable');
+  var MyRun = Java.extend(Run, { run: callback });
+  var task = server.scheduler.runTaskTimer(__plugin, new MyRun(), delay, delay);
   return task;
 }
 function bukkitClearInterval(bukkitTask) {
diff --git a/src/main/js/modules/drone/index.js b/src/main/js/modules/drone/index.js
index 369f7a696..f43303220 100644
--- a/src/main/js/modules/drone/index.js
+++ b/src/main/js/modules/drone/index.js
@@ -346,7 +346,8 @@ function makeTypeIdAndDataSetter() {
     };
   } else {
     try {
-      var CraftEvil = Java.type(server.class.package.name + '.util.CraftEvil');
+      // https://github.com/walterhiggins/ScriptCraft/issues/447
+      var CraftEvil = Java.type(server.class.package.name + '.legacy.CraftEvil');
       console.log('Drone using CraftEvil.setTypeIdAndData method');
       return function(block, typeId, data, applyPhysics) {
         CraftEvil.setTypeIdAndData(block, typeId, data, applyPhysics);
@@ -386,7 +387,7 @@ function putBlock(x, y, z, blockId, metadata, world, update) {
     }
   }
   if (__plugin.bukkit) {
-    setTypeIdAndData(block, blockId, metadata, update);
+    setTypeIdAndData(block, blockId, metadata, !!update);
   }
   return block;
 }