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diff --git a/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fs-vacuum/test/racy-entries-eexist.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fs-vacuum/test/racy-entries-eexist.js
new file mode 100644
index 00000000..d467e996
--- /dev/null
+++ b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fs-vacuum/test/racy-entries-eexist.js
@@ -0,0 +1,119 @@
+var path = require('path')
+
+var test = require('tap').test
+
+var readdir = require('graceful-fs').readdir
+var readdirSync = require('graceful-fs').readdirSync
+var rmdir = require('graceful-fs').rmdir
+var statSync = require('graceful-fs').statSync
+var writeFile = require('graceful-fs').writeFile
+var mkdirp = require('mkdirp')
+var mkdtemp = require('tmp').dir
+var tmpFile = require('tmp').file
+var EEXIST = require('errno').code.EEXIST
+var ENOTEMPTY = require('errno').code.ENOTEMPTY
+
+var requireInject = require('require-inject')
+var vacuum = requireInject('../vacuum.js', {
+  'graceful-fs': {
+    'lstat': require('graceful-fs').lstat,
+    'readdir': function (dir, cb) {
+      readdir(dir, function (err, files) {
+        // Simulate racy removal by creating a file after vacuum
+        // thinks the directory is empty
+        if (dir === partialPath && files.length === 0) {
+          tmpFile({dir: dir}, function (err, path, fd) {
+            if (err) throw err
+            cb(err, files)
+          })
+        } else {
+          cb(err, files)
+        }
+      })
+    },
+    'rmdir': function (dir, cb) {
+      rmdir(dir, function (err) {
+        // Force EEXIST error from rmdir if the directory is non-empty
+        var mockErr = EEXIST
+        if (err) {
+          if (err.code === ENOTEMPTY.code) {
+            err.code = err.errno = mockErr.code
+            err.message = mockErr.code + ': ' + mockErr.description + ', ' + err.syscall + ' \'' + dir + '\''
+          }
+        }
+        cb(err)
+      })
+    },
+    'unlink': require('graceful-fs').unlink
+  }
+})
+
+// CONSTANTS
+var TEMP_OPTIONS = {
+  unsafeCleanup: true,
+  mode: '0700'
+}
+var SHORT_PATH = path.join('i', 'am', 'a', 'path')
+var PARTIAL_PATH = path.join(SHORT_PATH, 'that', 'ends', 'at', 'a')
+var FULL_PATH = path.join(PARTIAL_PATH, 'file')
+
+var messages = []
+function log () { messages.push(Array.prototype.slice.call(arguments).join(' ')) }
+
+var testBase, partialPath, fullPath
+test('xXx setup xXx', function (t) {
+  mkdtemp(TEMP_OPTIONS, function (er, tmpdir) {
+    t.ifError(er, 'temp directory exists')
+
+    testBase = path.resolve(tmpdir, SHORT_PATH)
+    partialPath = path.resolve(tmpdir, PARTIAL_PATH)
+    fullPath = path.resolve(tmpdir, FULL_PATH)
+
+    mkdirp(partialPath, function (er) {
+      t.ifError(er, 'made test path')
+
+      writeFile(fullPath, new Buffer('hi'), function (er) {
+        t.ifError(er, 'made file')
+
+        t.end()
+      })
+    })
+  })
+})
+
+test('racy removal should quit gracefully', function (t) {
+  vacuum(fullPath, {purge: false, base: testBase, log: log}, function (er) {
+    t.ifError(er, 'cleaned up to base')
+
+    t.equal(messages.length, 3, 'got 2 removal & 1 quit message')
+    t.equal(messages[2], 'quitting because new (racy) entries in ' + partialPath)
+
+    var stat
+    var verifyPath = fullPath
+
+    function verify () { stat = statSync(verifyPath) }
+
+    // handle the file separately
+    t.throws(verify, verifyPath + ' cannot be statted')
+    t.notOk(stat && stat.isFile(), verifyPath + ' is totally gone')
+    verifyPath = path.dirname(verifyPath)
+
+    for (var i = 0; i < 4; i++) {
+      t.doesNotThrow(function () {
+        stat = statSync(verifyPath)
+      }, verifyPath + ' can be statted')
+      t.ok(stat && stat.isDirectory(), verifyPath + ' is still a directory')
+      verifyPath = path.dirname(verifyPath)
+    }
+
+    t.doesNotThrow(function () {
+      stat = statSync(testBase)
+    }, testBase + ' can be statted')
+    t.ok(stat && stat.isDirectory(), testBase + ' is still a directory')
+
+    var files = readdirSync(testBase)
+    t.equal(files.length, 1, 'base directory untouched')
+
+    t.end()
+  })
+})