diff --git a/build.sbt b/build.sbt
index 70725d5..aacea09 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,7 +5,7 @@ import scala.collection.mutable.ArrayBuffer
 import scala.util.Try
 import scala.sys.process._
 
-val jnaVersion = "5.12.0"
+val jnaVersion = "5.19.0"
 val jna = "net.java.dev.jna" % "jna" % jnaVersion
 
 val jnaPlatform = "net.java.dev.jna" % "jna-platform" % jnaVersion
@@ -105,13 +105,18 @@ buildWin32X86_64 / skip := {
   }, _.isEmpty)
 }
 Test / fork := true
+Test / javaOptions ++= {
+  import scala.util.Properties
+  if (Properties.isJavaAtLeast("11")) Seq("--enable-native-access=ALL-UNNAMED")
+  else Nil
+}
 Test / testGrouping := {
   val tests = (Test / definedTests).value
   tests
     .groupBy(_.name)
     .map {
       case (name, tests) =>
-        val options = ForkOptions()
+        val options = (Test / forkOptions).value
         new Tests.Group(name, tests, Tests.SubProcess(options))
     }
     .toSeq
diff --git a/src/main/java/org/scalasbt/ipcsocket/UnixDomainSocketLibrary.java b/src/main/java/org/scalasbt/ipcsocket/UnixDomainSocketLibrary.java
index 54f714f..c5532cc 100644
--- a/src/main/java/org/scalasbt/ipcsocket/UnixDomainSocketLibrary.java
+++ b/src/main/java/org/scalasbt/ipcsocket/UnixDomainSocketLibrary.java
@@ -262,7 +262,14 @@ public int available(int fd) throws NativeErrorException {
       } else {
         op = UnixDomainSocketLibrary.FIONREAD;
       }
-      UnixDomainSocketLibrary.ioctl(fd, op, len);
+      final int r = UnixDomainSocketLibrary.ioctl(fd, op, len);
+      if (r != 0) {
+        if (pollRead(fd, 0)) {
+          return 1;
+        } else {
+          return 0;
+        }
+      }
       return len.getValue();
     } catch (final LastErrorException e) {
       if (pollRead(fd, 0)) {