From e49bb8ff62881d402d23aba150e5aa03409f760f Mon Sep 17 00:00:00 2001
From: Andrea Cavalli <andrea@warp.ovh>
Date: Thu, 22 Mar 2018 15:54:06 +0100
Subject: [PATCH] Updated RulesManager

---
 .classpath                                       |  2 +-
 .../org/warp/picalculator/math/rules/Rule.java   |  4 +++-
 .../picalculator/math/rules/RulesManager.java    | 16 ++++++++--------
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/.classpath b/.classpath
index f048d21f..6c802bcb 100644
--- a/.classpath
+++ b/.classpath
@@ -6,7 +6,7 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
diff --git a/src/main/java/org/warp/picalculator/math/rules/Rule.java b/src/main/java/org/warp/picalculator/math/rules/Rule.java
index 821bd3b3..82c8a1db 100644
--- a/src/main/java/org/warp/picalculator/math/rules/Rule.java
+++ b/src/main/java/org/warp/picalculator/math/rules/Rule.java
@@ -1,5 +1,7 @@
 package org.warp.picalculator.math.rules;
 
+import java.io.Serializable;
+
 import org.warp.picalculator.math.Function;
 
 import it.unimi.dsi.fastutil.objects.ObjectArrayList;
@@ -10,7 +12,7 @@ import jdk.nashorn.internal.objects.annotations.SpecializedFunction;
  * @author Andrea Cavalli
  *
  */
-public interface Rule {
+public interface Rule extends Serializable {
 	/**
 	 * Get rule name
 	 * @return
diff --git a/src/main/java/org/warp/picalculator/math/rules/RulesManager.java b/src/main/java/org/warp/picalculator/math/rules/RulesManager.java
index 1395e0c8..d30ac325 100644
--- a/src/main/java/org/warp/picalculator/math/rules/RulesManager.java
+++ b/src/main/java/org/warp/picalculator/math/rules/RulesManager.java
@@ -109,21 +109,21 @@ public class RulesManager {
 							}
 						}
 						if (!loadedFromCache) {
-							Rule r;
+							Rule r = null;
 							try {
 								r = compileJavaRule(scriptFile);
 								RulesManager.addRule(r);
+								
+								Path p = Paths.get(compiledFile.replace("/", "_")).toAbsolutePath();
+								System.out.println(p);
+								p.toFile().createNewFile();
+								OutputStream fout = Files.newOutputStream(p, StandardOpenOption.CREATE);
+								ObjectOutputStream oos = new ObjectOutputStream(fout);
+								oos.writeObject(r);
 							} catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
 								// TODO Auto-generated catch block
 								e.printStackTrace();
 							}
-							
-							Path p = Paths.get(compiledFile.replace("/", "_")).toAbsolutePath();
-							System.out.println(p);
-							p.toFile().createNewFile();
-							OutputStream fout = Files.newOutputStream(p, StandardOpenOption.CREATE);
-							ObjectOutputStream oos = new ObjectOutputStream(fout);
-							oos.writeObject(script);
 							 
 						}
 					}