Fix for issue #60 (files locked because the streamreader is not closed)

src/docs/java/jscript.java

@@ -1,4 +1,6 @@
 import javax.script.*;
+import java.io.FileReader;
+
 public class jscript
 {
     public static void main(String[] args) throws Exception
@@ -8,6 +10,8 @@ public class jscript
         java.io.File file = new java.io.File(args[0]);
         engine.put("engine",engine);
         engine.put("args",args);
-        engine.eval(new java.io.FileReader(file));
+        FileReader fr = new java.io.FileReader(file);
+        engine.eval(fr);
+        fr.close();
     }
 }

src/main/java/net/walterhiggins/scriptcraft/ScriptCraftPlugin.java

@@ -90,6 +90,7 @@ public class ScriptCraftPlugin extends JavaPlugin
         unzipJS();
         
         if (this.engine == null){
+            FileReader reader = null;
             try{
                 ScriptEngineManager factory = new ScriptEngineManager();
                 File boot = new File(JS_PLUGINS_DIR + "/core/_scriptcraft.js");
@@ -97,9 +98,18 @@ public class ScriptCraftPlugin extends JavaPlugin
                 this.engine.put("__engine",engine);
                 this.engine.put("__plugin",this);
                 this.engine.put("__script",boot.getCanonicalPath().replaceAll("\\\\","/"));
-                this.engine.eval(new FileReader(boot));  
+                reader = new FileReader(boot);
+                this.engine.eval(reader);  
             }catch(Exception e){
                 e.printStackTrace();
+            }finally {
+                if (reader != null){
+                    try {
+                        reader.close();
+                    }catch(IOException ioe){
+                        // fail silently
+                    }
+                }
             }
         }
     }

src/main/javascript/core/_scriptcraft.js

@@ -281,6 +281,7 @@ var server = org.bukkit.Bukkit.server;
                 try{
                     result = __engine.eval(reader);
                     _loaded[canonizedFilename] = true;
+                    reader.close();
                 }catch (e){
                     __plugin.logger.severe("Error evaluating " + canonizedFilename + ", " + e );
                 }