Redirect mongocryptd output to /dev/null

JAVA-3464

Author: jyemin

driver-async/src/main/com/mongodb/async/client/internal/CommandMarker.java

@@ -30,6 +30,7 @@
 import org.bson.RawBsonDocument;
 
 import java.io.Closeable;
+import java.lang.ProcessBuilder.Redirect;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
@@ -50,7 +51,9 @@ class CommandMarker implements Closeable {
         }
 
         if (!options.containsKey("mongocryptdBypassSpawn") || !((Boolean) options.get("mongocryptdBypassSpawn"))) {
-            processBuilder = new ProcessBuilder(createMongocryptdSpawnArgs(options));
+            processBuilder = new ProcessBuilder(createMongocryptdSpawnArgs(options))
+                    .redirectOutput(Redirect.DISCARD)
+                    .redirectError(Redirect.DISCARD);
             startProcess();
         } else {
             processBuilder = null;

driver-sync/src/main/com/mongodb/client/internal/CommandMarker.java

@@ -31,6 +31,7 @@
 
 import java.io.Closeable;
 import java.io.IOException;
+import java.lang.ProcessBuilder.Redirect;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
@@ -51,7 +52,9 @@ class CommandMarker implements Closeable {
         }
 
         if (!options.containsKey("mongocryptdBypassSpawn") || !((Boolean) options.get("mongocryptdBypassSpawn"))) {
-            processBuilder = new ProcessBuilder(createMongocryptdSpawnArgs(options));
+            processBuilder = new ProcessBuilder(createMongocryptdSpawnArgs(options))
+                    .redirectOutput(Redirect.DISCARD)
+                    .redirectError(Redirect.DISCARD);
             startProcess();
         } else {
             processBuilder = null;