1 files changed, 82 insertions, 0 deletions
diff --git a/test/151-OpenFileLimit/src/Main.java b/test/151-OpenFileLimit/src/Main.java
new file mode 100644
index 0000000000..01a9a4ed34
--- /dev/null
+++ b/test/151-OpenFileLimit/src/Main.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import static java.nio.file.StandardOpenOption.*;
+import java.nio.file.*;
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    private static final String TEMP_FILE_NAME_PREFIX = "oflimit";
+    private static final String TEMP_FILE_NAME_SUFFIX = ".txt";
+
+    public static void main(String[] args) throws IOException {
+
+        // Exhaust the number of open file descriptors.
+        List<File> files = new ArrayList<File>();
+        List<OutputStream> streams = new ArrayList<OutputStream>();
+        try {
+            for (int i = 0; ; i++) {
+                File file = createTempFile();
+                files.add(file);
+                streams.add(Files.newOutputStream(file.toPath(), CREATE, APPEND));
+            }
+        } catch (Throwable e) {
+            if (e.getMessage().contains("Too many open files")) {
+                System.out.println("Message includes \"Too many open files\"");
+            } else {
+                System.out.println(e.getMessage());
+            }
+        }
+
+        // Now try to create a new thread.
+        try {
+            Thread thread = new Thread() {
+                public void run() {
+                    System.out.println("thread run.");
+                }
+            };
+            thread.start();
+            thread.join();
+        } catch (Throwable e) {
+            if (e.getMessage().contains("Too many open files")) {
+                System.out.println("Message includes \"Too many open files\"");
+            } else {
+                System.out.println(e.getMessage());
+            }
+        }
+
+        for (int i = 0; i < files.size(); i++) {
+          streams.get(i).close();
+          files.get(i).delete();
+        }
+        System.out.println("done.");
+    }
+
+    private static File createTempFile() throws Exception {
+        try {
+            return  File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
+        } catch (IOException e) {
+            System.setProperty("java.io.tmpdir", "/data/local/tmp");
+            try {
+                return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
+            } catch (IOException e2) {
+                System.setProperty("java.io.tmpdir", "/sdcard");
+                return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
+            }
+        }
+    }
+}