Update opencensus, guava, and Truth

dependencies.properties

@@ -38,9 +38,9 @@ maven.com_google_auth_google_auth_library_oauth2_http=com.google.auth:google-aut
 maven.com_google_auth_google_auth_library_credentials=com.google.auth:google-auth-library-credentials:0.17.1
 maven.io_opencensus_opencensus_api=io.opencensus:opencensus-api:0.23.0
 maven.io_opencensus_opencensus_contrib_grpc_metrics=io.opencensus:opencensus-contrib-grpc-metrics:0.23.0
-maven.io_opencensus_opencensus_contrib_http_util=io.opencensus:opencensus-contrib-http-util:0.23.0
+maven.io_opencensus_opencensus_contrib_http_util=io.opencensus:opencensus-contrib-http-util:0.24.0
 maven.com_google_code_gson_gson=com.google.code.gson:gson:2.8.5
-maven.com_google_guava_guava=com.google.guava:guava:28.0-android
+maven.com_google_guava_guava=com.google.guava:guava:28.1-android
 maven.com_google_code_findbugs_jsr305=com.google.code.findbugs:jsr305:3.0.2
 maven.com_google_errorprone_error_prone_annotations=com.google.errorprone:error_prone_annotations:2.3.2
 maven.com_google_j2objc_j2objc_annotations=com.google.j2objc:j2objc-annotations:1.3
@@ -75,7 +75,7 @@ maven.io_netty_netty_tcnative_boringssl_static=io.netty:netty-tcnative-boringssl
 maven.junit_junit=junit:junit:4.12
 maven.org_mockito_mockito_core=org.mockito:mockito-core:2.21.0
 maven.org_hamcrest_hamcrest_core=org.hamcrest:hamcrest-core:1.3
-maven.com_google_truth_truth=com.google.truth:truth:0.44
+maven.com_google_truth_truth=com.google.truth:truth:1.0
 maven.com_googlecode_java_diff_utils_diffutils=com.googlecode.java-diff-utils:diffutils:1.3.0
 maven.net_bytebuddy_byte_buddy=net.bytebuddy:byte-buddy:1.8.15
 maven.org_objenesis_objenesis=org.objenesis:objenesis:2.6

gax-grpc/src/test/java/com/google/api/gax/grpc/GrpcCallableFactoryTest.java

@@ -191,8 +191,10 @@ public void testGetSpanNameInvalid() {
       IllegalArgumentException actualError = null;
       try {
         SpanName spanName = GrpcCallableFactory.getSpanName(descriptor);
-        Truth.assertWithMessage("Invalid method descriptor should not have a valid span name")
-            .fail("%s should not generate the spanName: %s", invalidName, spanName);
+        Truth.assertWithMessage(
+                "Invalid method descriptor should not have a valid span name: %s should not generate the spanName: %s",
+                invalidName, spanName)
+            .fail();
       } catch (IllegalArgumentException e) {
         actualError = e;
       }

gax-httpjson/src/test/java/com/google/api/gax/httpjson/HttpJsonCallableFactoryTest.java

@@ -85,8 +85,10 @@ public void testGetSpanNameInvalid() {
       IllegalArgumentException actualError = null;
       try {
         SpanName spanName = HttpJsonCallableFactory.getSpanName(descriptor);
-        assertWithMessage("Invalid method descriptor should not have a valid span name")
-            .fail("%s should not generate the spanName: %s", invalidName, spanName);
+        assertWithMessage(
+                "Invalid method descriptor should not have a valid span name: %s should not generate the spanName: %s",
+                invalidName, spanName)
+            .fail();
       } catch (IllegalArgumentException e) {
         actualError = e;
       }

gax-httpjson/src/test/java/com/google/api/gax/httpjson/HttpJsonDirectCallableTest.java

@@ -52,6 +52,7 @@ public class HttpJsonDirectCallableTest {
           .setResponseParser(new FakeResponseParser())
           .build();
 
+  @SuppressWarnings("unchecked")
   @Test
   public void testTimeout() {
     HttpJsonChannel mockChannel = Mockito.mock(HttpJsonChannel.class);
@@ -87,6 +88,7 @@ public void testTimeout() {
     assertThat(capturedCallOptions.getValue().getDeadline()).isAtMost(maxExpectedDeadline);
   }
 
+  @SuppressWarnings("unchecked")
   @Test
   public void testTimeoutAfterDeadline() {
     HttpJsonChannel mockChannel = Mockito.mock(HttpJsonChannel.class);
@@ -122,6 +124,7 @@ public void testTimeoutAfterDeadline() {
     assertThat(capturedCallOptions.getValue().getDeadline()).isEqualTo(priorDeadline);
   }
 
+  @SuppressWarnings("unchecked")
   @Test
   public void testTimeoutBeforeDeadline() {
     HttpJsonChannel mockChannel = Mockito.mock(HttpJsonChannel.class);

gax-httpjson/src/test/java/com/google/api/gax/httpjson/HttpRequestRunnableTest.java

@@ -64,6 +64,7 @@ public class HttpRequestRunnableTest {
   private static Set<String> queryParams =
       Sets.newTreeSet(Lists.newArrayList("food", "size", "gibberish"));
 
+  @SuppressWarnings("unchecked")
   @BeforeClass
   public static void setUp() {
     fakeCallOptions =