Fix flaky integration test

The test relies on turbine failing before javac, which likely but not
guaranteed. Building the lib jar directly avoids the javac action for
'b', and makes the test failure deterministic.

PiperOrigin-RevId: 216110138
diff --git a/src/test/shell/integration/java_integration_test.sh b/src/test/shell/integration/java_integration_test.sh
index 5d00fdd..1220d6c 100755
--- a/src/test/shell/integration/java_integration_test.sh
+++ b/src/test/shell/integration/java_integration_test.sh
@@ -806,7 +806,7 @@
 )
 EOF
   bazel build --java_header_compilation=true \
-    //$pkg/java/test:a >& "$TEST_log" && fail "Unexpected success"
+    //$pkg/java/test:liba.jar >& "$TEST_log" && fail "Unexpected success"
   expect_log "symbol not found missing.NoSuch\|package missing does not exist"
 }