diff --git a/java/server/src/main/java/org/softwareheritage/graph/t/WriteLong.java b/java/server/src/main/java/org/softwareheritage/graph/t/WriteLong.java
deleted file mode 100644
index 547011a..0000000
--- a/java/server/src/main/java/org/softwareheritage/graph/t/WriteLong.java
+++ /dev/null
@@ -1,24 +0,0 @@
-import java.io.DataOutputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-
-public class WriteLong {
-    public static void main(String args[]) {
-	String filename = null;
-	try {
-	    filename = args[0];
-	    FileOutputStream file = new FileOutputStream(filename);
-	    DataOutputStream data = new DataOutputStream(file);
-	    while (true) {
-		data.writeLong(Long.parseLong(args[1]));
-	    }
-	    //data.close();
-	} catch (IOException e) {
-	    System.out.println("cannot write to file " + filename + "\n" + e);
-	    System.exit(2);
-	} catch (ArrayIndexOutOfBoundsException e) {
-	    System.out.println("Usage: Writer FILENAME INT");
-	    System.exit(1);
-	}
-    }
-}
diff --git a/java/server/src/main/java/org/softwareheritage/graph/t/aiohttp_rest.py b/java/server/src/main/java/org/softwareheritage/graph/t/aiohttp_rest.py
deleted file mode 100644
index 87c89a3..0000000
--- a/java/server/src/main/java/org/softwareheritage/graph/t/aiohttp_rest.py
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/usr/bin/env python3
-
-# Copyright (C) 2018 Antoine Pietri
-# SPDX-License-Identifier: MIT
-
-import argparse
-import aiohttp
-import aiohttp.web
-import hashutil
-
-
-async def hello(request):
-    return aiohttp.web.json_response(
-        {'hi': 'hello'}, headers={'Access-Control-Allow-Origin': '*'})
-
-
-async def make_app():
-    app = aiohttp.web.Application()
-    app.add_routes([
-        aiohttp.web.get('/hello', hello)])
-    return app
-
-
-async def get_stream(request):  # from objstorage
-    hex_id = request.match_info['hex_id']
-    obj_id = hashutil.hash_to_bytes(hex_id)
-    response = aiohttp.web.StreamResponse()
-    await response.prepare(request)
-    for chunk in request.app['objstorage'].get_stream(obj_id, 2 << 20):
-        await response.write(chunk)
-    await response.write_eof()
-    return response
-
-
-if __name__ == '__main__':
-    parser = argparse.ArgumentParser(
-        description='Test')
-    parser.add_argument('--host', default='127.0.0.1', help='Bind address')
-    parser.add_argument('--port', default=9012, help='Bind port')
-
-    args = parser.parse_args()
-
-    aiohttp.web.run_app(make_app(), host=args.host, port=args.port)
diff --git a/java/server/src/main/java/org/softwareheritage/graph/t/data.bin b/java/server/src/main/java/org/softwareheritage/graph/t/data.bin
deleted file mode 100644
index 2580cea..0000000
Binary files a/java/server/src/main/java/org/softwareheritage/graph/t/data.bin and /dev/null differ
diff --git a/java/server/src/main/java/org/softwareheritage/graph/t/read_long.py b/java/server/src/main/java/org/softwareheritage/graph/t/read_long.py
deleted file mode 100755
index c353798..0000000
--- a/java/server/src/main/java/org/softwareheritage/graph/t/read_long.py
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/python3
-
-import struct
-import sys
-
-BUF_SIZE = 64*1024
-BIN_FMT = '>q'  # 64 bit integer, big endian
-
-
-def main(fname):
-    with open(fname, 'rb') as f:
-        data = f.read(BUF_SIZE)
-        while(data):
-            for data in struct.iter_unpack(BIN_FMT, data):
-                print(data[0])
-            data = f.read(BUF_SIZE)
-
-
-if __name__ == '__main__':
-    try:
-        main(sys.argv[1])
-    except IndexError:
-        print('Usage: read_long FILENAME')
-        sys.exit(1)