oracle/graal · error · GraalError

Command finished with exit value %d: %s%n%s

Error message

Command finished with exit value %d: %s%n%s

What it means

Error "Command finished with exit value %d: %s%n%s" thrown in oracle/graal.

Source

Thrown at compiler/src/jdk.graal.compiler.libgraal/src/jdk/graal/compiler/libgraal/GetJNIConfig.java:107

        pb.redirectErrorStream(true);
        Process p;
        try {
            p = pb.start();
        } catch (IOException e) {
            throw new GraalError(e, "Could not run command: %s", quotedCommand);
        }

        String nl = System.lineSeparator();
        String out = new BufferedReader(new InputStreamReader(p.getInputStream())).lines().collect(Collectors.joining(nl));

        int exitValue;
        try {
            exitValue = p.waitFor();
        } catch (InterruptedException e) {
            throw new GraalError(e, "Interrupted waiting for command: %s%n%s", quotedCommand, out);
        }
        if (exitValue != 0) {
            throw new GraalError("Command finished with exit value %d: %s%n%s", exitValue, quotedCommand, out);
        }
        try {
            lines = Files.readAllLines(configFilePath);
        } catch (IOException e) {
            Path cfp = configFilePath;
            configFilePath = null;
            throw new GraalError("Reading JNI config in %s dumped by command: %s%n%s", cfp, quotedCommand, out);
        }
    }

    static Path getJavaExe(Path javaHome) {
        boolean isWindows = GraalServices.getSavedProperty("os.name").contains("Windows");
        Path javaExe = javaHome.resolve(Path.of("bin", isWindows ? "java.exe" : "java"));
        if (!Files.isExecutable(javaExe)) {
            throw new GraalError("Java launcher %s does not exist or is not executable", javaExe);
        }
        return javaExe;
    }

View on GitHub (pinned to a66e9ccd1d)

Solutions

1. Fix the condition reported by the error: Command finished with exit value {}: {} {}
2. Check the throwing call site and ensure its documented preconditions (argument values, types, environment, or configuration) are satisfied before the call.

Example fix

Validate inputs and environment so that the failing condition does not occur: Command finished with exit value {}: {} {}

When it happens

Trigger: Thrown at compiler/src/jdk.graal.compiler.libgraal/src/jdk/graal/compiler/libgraal/GetJNIConfig.java:107 when the library encounters an invalid state.

Common situations: Occurs when a caller violates the contract guarded by this check: Command finished with exit value {}: {} {}

AI-assisted analysis of oracle/graal@a66e9ccd1d (2026-08-14). Data as JSON: /api/errors/a43b3ec4f861f8ca. Report an issue: GitHub.