ignore "Picked up" java stderr messages

solves #19 solves #384
qjebbs · Apr 12, 2021 · 0c8e529 · 0c8e529
1 parent 2e6864d
commit 0c8e529
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/plantuml/renders/processWrapper.ts b/src/plantuml/renders/processWrapper.ts
@@ -31,7 +31,11 @@ export function processWrapper(process: child_process.ChildProcess, pipeFilePath
                 stdout = Buffer.from(pipeFilePath);
             }
             let stderr = Buffer.concat(buffErr, buffErrLen).toString();
-            if (stderr.indexOf('JAVA_TOOL_OPTIONS') >= 0) stderr = "";
+
+            // If environment variables such as JAVA_TOOL_OPTIONS or _JAVA_OPTIONS are set,
+            // some java implementations will echo them on stderr.
+            stderr.replace(/^Picked up .*$/mg, "");
+
             if (stderr) {
                 reject(<RenderError>{ error: stderr, out: stdout });
                 return;