Param (
    [string]$FilePath
)

# Define the search string and replacement line
$SearchString = '        <j2se version="1.6+" max-heap-size="256m"/>'
$ReplacementLine = '        <j2se version="1.8+" max-heap-size="512m" java-vm-args="-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8888"/>'

if (-not (Test-Path -LiteralPath $FilePath -PathType Leaf)) {
    Write-Error "File '$FilePath' does not exist."
    exit 1
}

try {
    # Read the file content
    $content = Get-Content -LiteralPath $FilePath -Encoding UTF8

    # Process each line
    $modifiedContent = $content | ForEach-Object {
        if ($_.StartsWith($SearchString)) {
            # Replace the line
            $ReplacementLine
        } else {
            $_
        }
    }

    # Write the modified content back to the file
    $modifiedContent | Set-Content -LiteralPath $FilePath -Encoding UTF8

    Write-Host "The file '$FilePath' has been updated."
    exit 0
} catch {
    Write-Error "An error occurred: $_"
    exit 1
}