diff -r 5752df8a67b5 -r 8dcf9e12446b core/src/luan/LuanException.java
--- a/core/src/luan/LuanException.java	Tue May 26 20:59:05 2015 -0600
+++ b/core/src/luan/LuanException.java	Wed May 27 01:20:49 2015 -0600
@@ -13,6 +13,7 @@
 
 	LuanException(LuanBit bit,Object msg) throws LuanException {
 		this( bit.luan.toString(msg), msg instanceof Throwable ? (Throwable)msg : null );
+		table.rawPut("java",this);
 		table.rawPut("message",msg);
 		for( StackTraceElement ste : bit.stackTrace() ) {
 			LuanTable tbl = new LuanTable();

diff -r 5752df8a67b5 -r 8dcf9e12446b core/src/luan/LuanState.java
--- a/core/src/luan/LuanState.java	Tue May 26 20:59:05 2015 -0600
+++ b/core/src/luan/LuanState.java	Wed May 27 01:20:49 2015 -0600
@@ -13,6 +13,7 @@
 	final List<StackTraceElement> stackTrace = new ArrayList<StackTraceElement>();
 
 	private Map registry;
+	private final List<LuanFunction> onClose = new ArrayList<LuanFunction>();
 
 	protected LuanState() {
 		registry = new HashMap();
@@ -32,6 +33,17 @@
 		return registry;
 	}
 
+	public void onClose(LuanFunction fn) {
+		onClose.add(fn);
+	}
+
+	public void close() throws LuanException {
+		for( LuanFunction fn : onClose ) {
+			call(fn);
+		}
+		onClose.clear();
+	}
+
 	public static LuanState newInstance() {
 		return LuanCompiler.newLuanState();
 	}

diff -r 5752df8a67b5 -r 8dcf9e12446b core/src/luan/cmd_line.luan
--- a/core/src/luan/cmd_line.luan	Tue May 26 20:59:05 2015 -0600
+++ b/core/src/luan/cmd_line.luan	Wed May 27 01:20:49 2015 -0600
@@ -24,7 +24,7 @@
 			Debug.print_if_something( main_file( Table.unpack(Luan.arg) ) )
 		end;
 		catch = function(e)
---			java(); e.printStackTrace(); return
+--			java(); e.java.printStackTrace(); return
 			Io.print_to(Io.stderr, e )
 		end;
 	}

diff -r 5752df8a67b5 -r 8dcf9e12446b core/src/luan/modules/BasicLuan.java
--- a/core/src/luan/modules/BasicLuan.java	Tue May 26 20:59:05 2015 -0600
+++ b/core/src/luan/modules/BasicLuan.java	Wed May 27 01:20:49 2015 -0600
@@ -225,4 +225,8 @@
 		}
 	}
 
+	public static void on_luan_close(LuanState luan,LuanFunction fn) {
+		luan.onClose(fn);
+	}
+
 }

diff -r 5752df8a67b5 -r 8dcf9e12446b core/src/luan/modules/Luan.luan
--- a/core/src/luan/modules/Luan.luan	Tue May 26 20:59:05 2015 -0600
+++ b/core/src/luan/modules/Luan.luan	Wed May 27 01:20:49 2015 -0600
@@ -15,6 +15,7 @@
 M.load = BasicLuan.load
 M.load_file = BasicLuan.load_file
 M.new_error = BasicLuan.new_error
+M.on_luan_close = BasicLuan.on_luan_close
 M.pairs = BasicLuan.pairs
 M.pcall = BasicLuan.pcall
 M.range = BasicLuan.range

diff -r 5752df8a67b5 -r 8dcf9e12446b core/src/luan/modules/PickleServer.java
--- a/core/src/luan/modules/PickleServer.java	Tue May 26 20:59:05 2015 -0600
+++ b/core/src/luan/modules/PickleServer.java	Wed May 27 01:20:49 2015 -0600
@@ -46,19 +46,10 @@
 //e.printStackTrace();
 				StringBuilder sb = new StringBuilder();
 				sb.append( "return false, " );
-				sb.append( con.pickle(e.getMessage()) );
+				sb.append( con.pickle(e.getFullMessage(con.luan)) );
 				sb.append( ", " );
 				sb.append( con.pickle(con.src) );
 				sb.append( '\n' );
-/*
-				Throwable cause = e.getCause();
-				if( cause != null ) {
-					sb.append( "\nCaused by: " );
-					StringWriter sw = new StringWriter();
-					cause.printStackTrace(new PrintWriter(sw));
-					sb.append( sw );
-				}
-*/
 				con.write( sb.toString() );
 			}
 		} catch(LuanException e2) {

diff -r 5752df8a67b5 -r 8dcf9e12446b http/src/luan/modules/http/LuanHandler.java
--- a/http/src/luan/modules/http/LuanHandler.java	Tue May 26 20:59:05 2015 -0600
+++ b/http/src/luan/modules/http/LuanHandler.java	Wed May 27 01:20:49 2015 -0600
@@ -22,7 +22,7 @@
 		this.luan = luan;
 	}
 
-	public void handle(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response) 
+	@Override public void handle(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response) 
 		throws IOException
 	{
 		if( target.endsWith("/") )
@@ -41,4 +41,16 @@
 	public void setWelcomeFile(String welcomeFile) {
 		this.welcomeFile = welcomeFile;
 	}
+
+	@Override protected void doStop() throws Exception {
+		luan.close();
+//System.out.println("qqqqqqqqqqqqqqqqqqqq doStop "+this);
+		super.doStop();
+	}
+/*
+	@Override public void destroy() {
+System.out.println("qqqqqqqqqqqqqqqqqqqq destroy "+this);
+		super.destroy();
+	}
+*/
 }

diff -r 5752df8a67b5 -r 8dcf9e12446b http/src/luan/modules/http/NotFound.java
--- a/http/src/luan/modules/http/NotFound.java	Tue May 26 20:59:05 2015 -0600
+++ b/http/src/luan/modules/http/NotFound.java	Wed May 27 01:20:49 2015 -0600
@@ -13,7 +13,7 @@
 		super(luan);
 	}
 
-	public void handle(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response) 
+	@Override public void handle(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response) 
 		throws IOException
 	{
 		super.handle("/not_found",baseRequest,request,response);

diff -r 5752df8a67b5 -r 8dcf9e12446b lucene/src/luan/modules/lucene/Lucene.luan
--- a/lucene/src/luan/modules/lucene/Lucene.luan	Tue May 26 20:59:05 2015 -0600
+++ b/lucene/src/luan/modules/lucene/Lucene.luan	Wed May 27 01:20:49 2015 -0600
@@ -28,6 +28,8 @@
 	index.map_field_name = java_index.map_field_name
 	index.close = java_index.close
 
+	Luan.on_luan_close(index.close)
+
 	function index.save_document(doc)
 		index.Writer( function(writer)
 			writer.save_document(doc)