diff --git a/streaming/BUILD.bazel b/streaming/BUILD.bazel
index 3ab194701..875a2f913 100644
--- a/streaming/BUILD.bazel
+++ b/streaming/BUILD.bazel
@@ -306,7 +306,5 @@ cc_binary(
     deps = [
         ":jni",
         ":streaming_lib",
-        "//:core_worker_lib",
-        "//:ray_util",
     ],
 )
diff --git a/streaming/java/test.sh b/streaming/java/test.sh
index c58f28f88..30c73002e 100755
--- a/streaming/java/test.sh
+++ b/streaming/java/test.sh
@@ -7,33 +7,37 @@ set -x
 
 ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
 
-run_testng() {
-    "$@" || exit_code=$?
-    # exit_code == 2 means there are skipped tests.
-    if [ $exit_code -ne 2 ] && [ $exit_code -ne 0 ] ; then
-        exit $exit_code
-    fi
-}
-
 echo "build ray streaming"
 bazel build //streaming/java:all
 
+# Check that ray libstreaming_java doesn't include symbols from ray by accident.
+# Otherwise the symbols may conflict.
+symbols_conflict=$(nm bazel-bin/streaming/libstreaming_java.so | grep TaskFinisherInterface || true)
+if [ -n "${symbols_conflict}" ]; then
+    echo "streaming should not include symbols from ray: ${symbols_conflict}"
+    exit 1
+fi
+
 echo "Linting Java code with checkstyle."
 bazel test //streaming/java:all --test_tag_filters="checkstyle" --build_tests_only
 
 echo "Running streaming tests."
-run_testng java -cp $ROOT_DIR/../../bazel-bin/streaming/java/all_streaming_tests_deploy.jar\
- org.testng.TestNG -d /tmp/ray_streaming_java_test_output $ROOT_DIR/testng.xml
-
+java -cp "$ROOT_DIR"/../../bazel-bin/streaming/java/all_streaming_tests_deploy.jar\
+ org.testng.TestNG -d /tmp/ray_streaming_java_test_output "$ROOT_DIR"/testng.xml
+exit_code=$?
 echo "Streaming TestNG results"
 cat /tmp/ray_streaming_java_test_output/testng-results.xml
+# exit_code == 2 means there are skipped tests.
+if [ $exit_code -ne 2 ] && [ $exit_code -ne 0 ] ; then
+    exit $exit_code
+fi
 
 echo "Testing maven install."
-cd $ROOT_DIR/../../java
+cd "$ROOT_DIR"/../../java
 echo "build ray maven deps"
 bazel build gen_maven_deps
 echo "maven install ray"
 mvn clean install -DskipTests
-cd $ROOT_DIR
+cd "$ROOT_DIR"
 echo "maven install ray streaming"
 mvn clean install -DskipTests