Java: Maven: Fix some boo boos with the Windows installation.

- The resource path should not use the platform's file separator.
- Restore the commands to download and extract the Windows native libraries.
- Unrelated tweaks the README
Change: 151161421

tensorflow/java/maven/README.md

@@ -54,7 +54,8 @@ conducted in a [Docker](https://www.docker.com) container.
 -   An account at [oss.sonatype.org](https://oss.sonatype.org/), that has
     permissions to update artifacts in the `org.tensorflow` group. If your
     account does not have permissions, then you'll need to ask someone who does
-    to [file a ticket](https://issues.sonatype.org/) to add to the permissions.
+    to [file a ticket](https://issues.sonatype.org/) to add to the permissions
+    ([sample ticket](https://issues.sonatype.org/browse/MVNCENTRAL-1637)).
 -   A GPG signing key, required [to sign the release artifacts](http://central.sonatype.org/pages/apache-maven.html#gpg-signed-components).
 
 ### Deploying to Maven Central
@@ -97,7 +98,12 @@ EOF
     the private staging repository. After verifying the release, visit
     https://oss.sonatype.org/#stagingRepositories, find the `org.tensorflow`
     release and click on either `Release` to finalize the release, or `Drop` to
-    abort.
+    abort. Some things of note:
+
+    - For details, look at the [Sonatype guide](http://central.sonatype.org/pages/releasing-the-deployment.html).
+    - Syncing with [Maven Central](http://repo1.maven.org/maven2/org/tensorflow/)
+      can take 10 minutes to 2 hours (as per the [OSSRH
+      guide](http://central.sonatype.org/pages/ossrh-guide.html#releasing-to-central)).
 
 4.  Upon successful release, commit changes to all the `pom.xml` files
     (which should have the updated version number).

tensorflow/java/maven/run_inside_container.sh

@@ -69,11 +69,11 @@ download_libtensorflow_jni() {
   else
     curl -L "${RELEASE_URL_PREFIX}/libtensorflow_jni-cpu-linux-x86_64-${TF_VERSION}.tar.gz" | tar -xvz -C linux-x86_64
     curl -L "${RELEASE_URL_PREFIX}/libtensorflow_jni-cpu-darwin-x86_64-${TF_VERSION}.tar.gz" | tar -xvz -C darwin-x86_64
-#    curl -L "${RELEASE_URL_PREFIX}/libtensorflow_jni-cpu-windows-x86_64-${TF_VERSION}.zip" -o /tmp/windows.zip
+    curl -L "${RELEASE_URL_PREFIX}/libtensorflow_jni-cpu-windows-x86_64-${TF_VERSION}.zip" -o /tmp/windows.zip
   fi
 
-#  unzip /tmp/windows.zip -d windows-x86_64
-#  rm -f /tmp/windows.zip
+  unzip /tmp/windows.zip -d windows-x86_64
+  rm -f /tmp/windows.zip
   # Updated timestamps seem to be required to get Maven to pick up the file.
   touch linux-x86_64/*
   touch darwin-x86_64/*

tensorflow/java/src/main/java/org/tensorflow/NativeLibrary.java

@@ -138,18 +138,8 @@ final class NativeLibrary {
   }
 
   private static String makeResourceName() {
-    // Using string addition instead of more modern functions like
-    // java.nio.file.Paths.get() to make this method usable on Android,
-    // where as of March 2017, the java.nio.files package was not available.
-    final String separator = System.getProperty("file.separator");
-    return "org"
-        + separator
-        + "tensorflow"
-        + separator
-        + "native"
-        + separator
-        + String.format("%s-%s", os(), architecture())
-        + separator
+    return "org/tensorflow/native/"
+        + String.format("%s-%s/", os(), architecture())
         + System.mapLibraryName(LIBNAME);
   }