--- a/src/java.base/linux/native/libnio/ch/EPollArrayWrapper.c	Fri Mar 23 11:18:39 2018 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,160 +0,0 @@
-/*
- * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-#include "jni.h"
-#include "jni_util.h"
-#include "jvm.h"
-#include "jlong.h"
-
-#include "sun_nio_ch_EPollArrayWrapper.h"
-
-#include <unistd.h>
-#include <sys/time.h>
-#include <sys/epoll.h>
-
-#define RESTARTABLE(_cmd, _result) do { \
-  do { \
-    _result = _cmd; \
-  } while((_result == -1) && (errno == EINTR)); \
-} while(0)
-
-
-static int
-iepoll(int epfd, struct epoll_event *events, int numfds, jlong timeout)
-{
-    jlong start, now;
-    int remaining = timeout;
-    struct timeval t;
-    int diff;
-
-    gettimeofday(&t, NULL);
-    start = t.tv_sec * 1000 + t.tv_usec / 1000;
-
-    for (;;) {
-        int res = epoll_wait(epfd, events, numfds, remaining);
-        if (res < 0 && errno == EINTR) {
-            if (remaining >= 0) {
-                gettimeofday(&t, NULL);
-                now = t.tv_sec * 1000 + t.tv_usec / 1000;
-                diff = now - start;
-                remaining -= diff;
-                if (diff < 0 || remaining <= 0) {
-                    return 0;
-                }
-                start = now;
-            }
-        } else {
-            return res;
-        }
-    }
-}
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_EPollArrayWrapper_init(JNIEnv *env, jclass this)
-{
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_EPollArrayWrapper_epollCreate(JNIEnv *env, jobject this)
-{
-    /*
-     * epoll_create expects a size as a hint to the kernel about how to
-     * dimension internal structures. We can't predict the size in advance.
-     */
-    int epfd = epoll_create(256);
-    if (epfd < 0) {
-       JNU_ThrowIOExceptionWithLastError(env, "epoll_create failed");
-    }
-    return epfd;
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_EPollArrayWrapper_sizeofEPollEvent(JNIEnv* env, jclass this)
-{
-    return sizeof(struct epoll_event);
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_EPollArrayWrapper_offsetofData(JNIEnv* env, jclass this)
-{
-    return offsetof(struct epoll_event, data);
-}
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_EPollArrayWrapper_epollCtl(JNIEnv *env, jobject this, jint epfd,
-                                           jint opcode, jint fd, jint events)
-{
-    struct epoll_event event;
-    int res;
-
-    event.events = events;
-    event.data.fd = fd;
-
-    RESTARTABLE(epoll_ctl(epfd, (int)opcode, (int)fd, &event), res);
-
-    /*
-     * A channel may be registered with several Selectors. When each Selector
-     * is polled a EPOLL_CTL_DEL op will be inserted into its pending update
-     * list to remove the file descriptor from epoll. The "last" Selector will
-     * close the file descriptor which automatically unregisters it from each
-     * epoll descriptor. To avoid costly synchronization between Selectors we
-     * allow pending updates to be processed, ignoring errors. The errors are
-     * harmless as the last update for the file descriptor is guaranteed to
-     * be EPOLL_CTL_DEL.
-     */
-    if (res < 0 && errno != EBADF && errno != ENOENT && errno != EPERM) {
-        JNU_ThrowIOExceptionWithLastError(env, "epoll_ctl failed");
-    }
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_EPollArrayWrapper_epollWait(JNIEnv *env, jobject this,
-                                            jlong address, jint numfds,
-                                            jlong timeout, jint epfd)
-{
-    struct epoll_event *events = jlong_to_ptr(address);
-    int res;
-
-    if (timeout <= 0) {           /* Indefinite or no wait */
-        RESTARTABLE(epoll_wait(epfd, events, numfds, timeout), res);
-    } else {                      /* Bounded wait; bounded restarts */
-        res = iepoll(epfd, events, numfds, timeout);
-    }
-
-    if (res < 0) {
-        JNU_ThrowIOExceptionWithLastError(env, "epoll_wait failed");
-    }
-    return res;
-}
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_EPollArrayWrapper_interrupt(JNIEnv *env, jobject this, jint fd)
-{
-    int fakebuf[1];
-    fakebuf[0] = 1;
-    if (write(fd, fakebuf, 1) < 0) {
-        JNU_ThrowIOExceptionWithLastError(env,"write to interrupt fd failed");
-    }
-}