From 6a180db3a936b91cbba539367f9af785f11b2ef8 Mon Sep 17 00:00:00 2001
From: not-matthias <matthias@codspeed.io>
Date: Mon, 9 Mar 2026 18:30:42 +0100
Subject: [PATCH] feat: pass java options benchmark

---
 src/executor/helpers/env.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/executor/helpers/env.rs b/src/executor/helpers/env.rs
index 51b6f714..9721e86e 100644
--- a/src/executor/helpers/env.rs
+++ b/src/executor/helpers/env.rs
@@ -29,6 +29,19 @@ pub fn get_base_injected_env(
                 "0".into()
             },
         ),
+        // Java: Enable frame pointers and perf map generation for flamegraph profiling.
+        // - UnlockDiagnosticVMOptions must come before DumpPerfMapAtExit (diagnostic option).
+        // - PreserveFramePointer: Preserves frame pointers for profiling.
+        // - DumpPerfMapAtExit: Writes /tmp/perf-<pid>.map on JVM exit for symbol resolution.
+        // - DebugNonSafepoints: Enables debug info for JIT-compiled non-safepoint code.
+        (
+            "JAVA_TOOL_OPTIONS",
+            if mode == RunnerMode::Walltime {
+                "-XX:+PreserveFramePointer -XX:+UnlockDiagnosticVMOptions -XX:+DumpPerfMapAtExit -XX:+DebugNonSafepoints".into()
+            } else {
+                "".into()
+            },
+        ),
         ("ARCH", ARCH.into()),
         ("CODSPEED_ENV", "runner".into()),
         (