diff -r 000000000000 -r 263482b074e9 dew/src/main/java/org/apidesign/bck2brwsr/dew/MemoryFileObject.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dew/src/main/java/org/apidesign/bck2brwsr/dew/MemoryFileObject.java	Wed Oct 02 21:00:24 2013 +0200
@@ -0,0 +1,125 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package org.apidesign.bck2brwsr.dew;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Reader;
+import java.io.Writer;
+
+/**
+ *
+ * @author Tomas Zeuzla
+ */
+class MemoryFileObject extends BaseFileObject {
+
+    private byte[] content;
+    private long lastModified;
+
+    MemoryFileObject (
+            String resourceName,
+            Kind kind,
+            byte[] content) {
+        super(resourceName, kind);
+        this.content = content;
+        this.lastModified = this.content == null ?
+            -1 :
+            System.currentTimeMillis();
+    }
+
+    MemoryFileObject (
+            String resourceName,
+            byte[] content) {
+        this(resourceName, getKind(resourceName) ,content);
+    }
+
+
+    @Override
+    public InputStream openInputStream() throws IOException {
+        if (content == null) {
+            throw new IOException();
+        } else {
+            return new ByteArrayInputStream(content);
+        }
+    }
+
+    @Override
+    public OutputStream openOutputStream() throws IOException {
+        return new CloseStream();
+    }
+
+    @Override
+    public Reader openReader(boolean ignoreEncodingErrors) throws IOException {
+        return new InputStreamReader(openInputStream());
+    }
+
+    @Override
+    public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
+        if (content == null) {
+            throw new IOException();
+        } else {
+            return new String(content);
+        }
+    }
+
+    @Override
+    public Writer openWriter() throws IOException {
+        return new OutputStreamWriter(openOutputStream());
+    }
+
+    @Override
+    public long getLastModified() {
+        return lastModified;
+    }
+
+    @Override
+    public boolean delete() {
+        return false;
+    }
+
+    byte[] getContent() {
+        return content;
+    }
+
+    private class CloseStream extends OutputStream {
+
+        private final ByteArrayOutputStream delegate;
+
+        CloseStream() {
+            delegate = new ByteArrayOutputStream();
+        }
+
+        @Override
+        public void write(int b) throws IOException {
+            delegate.write(b);
+        }
+
+        @Override
+        public void write(byte[] b) throws IOException {
+            delegate.write(b);
+        }
+
+        @Override
+        public void write(byte[] b, int off, int len) throws IOException {
+            delegate.write(b, off, len);
+        }
+
+        @Override
+        public void close() throws IOException {
+            delegate.close();
+            content = delegate.toByteArray();
+            lastModified = System.currentTimeMillis();
+        }                                    
+
+    }
+
+}