diff --git a/build.sh b/build.sh
index 14f3149..255e46a 100755
--- a/build.sh
+++ b/build.sh
@@ -40,7 +40,8 @@
     test)
       # run lang-specific tests
       (cd lang/java; ./build.sh test)
-      (cd lang/java; ./build.sh test; mvn install -pl tools  -am -DskipTests)
+      # install java artifacts required by other builds and interop tests
+      mvn install -DskipTests
       (cd lang/py; ./build.sh test)
       (cd lang/py3; ./build.sh test)
       (cd lang/c; ./build.sh test)