From ca054a34fa162fc6c547653ecded00c857d19ba3 Mon Sep 17 00:00:00 2001
From: Ilia Kirianovskii <Ilia.Kirianovskii@jetbrains.com>
Date: Mon, 26 May 2025 10:24:43 +0200
Subject: [PATCH] [jvm-rules] Prevent JVM logging warnings and errors to stdout
 in jvm-builder (IJI-2740)

GitOrigin-RevId: ee417016228faeca487432cffd38a5a5b69f3e66
---
 build/jvm-rules/src/jvm-args.bzl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/build/jvm-rules/src/jvm-args.bzl b/build/jvm-rules/src/jvm-args.bzl
index 88a6d20bdb7b..43587a47c5fa 100644
--- a/build/jvm-rules/src/jvm-args.bzl
+++ b/build/jvm-rules/src/jvm-args.bzl
@@ -11,6 +11,10 @@ def get_jvm_flags(flags):
         "-XX:NonProfiledCodeHeapSize=512m",
         "-XX:ProfiledCodeHeapSize=512m",
         "-XX:ReservedCodeCacheSize=2048m",
+        # Prevent JVM logging warnings and errors to stdout because it breaks the protocol between Bazel and the worker process
+        "-XX:+DisplayVMOutputToStderr",
+        "-Xlog:disable",
+        "-Xlog:all=warning:stderr:uptime,level,tags",
         # Headless
         "-Djava.awt.headless=true",
         "-Dapple.awt.UIElement=true",