diff --git a/.travis.yml b/.travis.yml
index bb46155d4d..ba52ba244d 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@ language: android
 
 jdk:
   - oraclejdk8
+  - openjdk11
 
 android:
   components:
@@ -11,10 +12,11 @@ android:
     - android-28
 
 before_install:
-  - yes | sdkmanager "platforms;android-28"
+  - if [[ "$TRAVIS_JDK_VERSION" == "oraclejdk8" ]]; then yes | sdkmanager "platforms;android-28"; fi
 
 script:
-  - ./gradlew verGJF build
+  - if [[ "$TRAVIS_JDK_VERSION" == "oraclejdk8" ]]; then ./gradlew verGJF build; fi
+  - if [[ "$TRAVIS_JDK_VERSION" == "openjdk11" ]]; then ./gradlew :nullaway:test; fi
 
 after_success:
   - .buildscript/deploy_snapshot.sh
diff --git a/build.gradle b/build.gradle
index 432907e8d0..f1442e84d3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,6 +52,12 @@ subprojects { project ->
         }
     }
 
+    if (JavaVersion.current().java9Compatible) {
+        tasks.withType(JavaCompile) {
+            options.compilerArgs += [ "--release", "8" ]
+        }
+    }
+
     repositories {
         maven {
             url "https://raw.githubusercontent.com/lazaroclapp/WALA/repository/"
diff --git a/nullaway/build.gradle b/nullaway/build.gradle
index 408cb82046..063259d0f6 100644
--- a/nullaway/build.gradle
+++ b/nullaway/build.gradle
@@ -62,11 +62,17 @@ javadoc {
 
 test {
   maxHeapSize = "1024m"
-  jvmArgs "-Xbootclasspath/p:${configurations.errorproneJavac.asPath}"
+  if (!JavaVersion.current().java9Compatible) {
+    jvmArgs "-Xbootclasspath/p:${configurations.errorproneJavac.asPath}"
+  }
 }
 
 apply from: rootProject.file("gradle/gradle-mvn-push.gradle")
 
+jacoco {
+  toolVersion = "0.8.2"
+}
+
 // From https://github.com/kt3k/coveralls-gradle-plugin
 jacocoTestReport {
     reports {
diff --git a/nullaway/src/test/java/com/uber/nullaway/NullAwayTest.java b/nullaway/src/test/java/com/uber/nullaway/NullAwayTest.java
index 6ca943279b..646014b7e2 100644
--- a/nullaway/src/test/java/com/uber/nullaway/NullAwayTest.java
+++ b/nullaway/src/test/java/com/uber/nullaway/NullAwayTest.java
@@ -294,6 +294,11 @@ public void externalInitexternalInitSupportFields() {
 
   @Test
   public void generatedAsUnannotated() {
+    String generatedAnnot =
+        (Double.parseDouble(System.getProperty("java.specification.version")) >= 11)
+            ? "@javax.annotation.processing.Generated"
+            : "@javax.annotation.Generated";
+    System.err.println();
     compilationHelper
         .setArgs(
             Arrays.asList(
@@ -304,7 +309,7 @@ public void generatedAsUnannotated() {
         .addSourceLines(
             "Generated.java",
             "package com.uber;",
-            "@javax.annotation.Generated(\"foo\")",
+            generatedAnnot + "(\"foo\")",
             "public class Generated { public void takeObj(Object o) {} }")
         .addSourceLines(
             "Test.java",
@@ -317,6 +322,10 @@ public void generatedAsUnannotated() {
 
   @Test
   public void generatedAsUnannotatedPlusRestrictive() {
+    String generatedAnnot =
+        (Double.parseDouble(System.getProperty("java.specification.version")) >= 11)
+            ? "@javax.annotation.processing.Generated"
+            : "@javax.annotation.Generated";
     compilationHelper
         .setArgs(
             Arrays.asList(
@@ -328,7 +337,7 @@ public void generatedAsUnannotatedPlusRestrictive() {
         .addSourceLines(
             "Generated.java",
             "package com.uber;",
-            "@javax.annotation.Generated(\"foo\")",
+            generatedAnnot + "(\"foo\")",
             "public class Generated {",
             "  @javax.annotation.Nullable",
             "  public Object retNull() {",
diff --git a/nullaway/src/test/resources/com/uber/nullaway/testdata/NullAwayNativeModels.java b/nullaway/src/test/resources/com/uber/nullaway/testdata/NullAwayNativeModels.java
index 8d8d76f1a9..773e4b84e5 100644
--- a/nullaway/src/test/resources/com/uber/nullaway/testdata/NullAwayNativeModels.java
+++ b/nullaway/src/test/resources/com/uber/nullaway/testdata/NullAwayNativeModels.java
@@ -253,8 +253,9 @@ static void arrayDequeStuff() {
     d.offer(null);
     // BUG: Diagnostic contains: passing @Nullable parameter 'null' where @NonNull is required
     d.push(null);
-    // BUG: Diagnostic contains: passing @Nullable parameter 'null' where @NonNull is required
-    d.toArray(null);
+    Object[] o = null;
+    // BUG: Diagnostic contains: passing @Nullable parameter 'o' where @NonNull is required
+    d.toArray(o);
     // this should be fine
     d.toArray();
   }
@@ -275,8 +276,9 @@ static void dequeStuff() {
     d.offer(null);
     // BUG: Diagnostic contains: passing @Nullable parameter 'null' where @NonNull is required
     d.push(null);
-    // BUG: Diagnostic contains: passing @Nullable parameter 'null' where @NonNull is required
-    d.toArray(null);
+    Object[] o = null;
+    // BUG: Diagnostic contains: passing @Nullable parameter 'o' where @NonNull is required
+    d.toArray(o);
   }
 
   static void guavaStuff() {