pomMap.put(pomPath, upgradedDocument);
                    } finally {
                        context.unindent();
                    }
                    context.success("Model upgrade completed");
                    modifiedPoms.add(pomPath);
                } else {
                    // Treat invalid upgrades (including downgrades) as errors, not warnings

                context.failure("Failed to fix Maven 4 compatibility issues" + ": " + e.getMessage());
                errorPoms.add(pomPath);
            } finally {
                context.unindent();
            }
        }

        return new UpgradeResult(processedPoms, modifiedPoms, errorPoms);
    }

    /**
     * Fixes unsupported combine.children attribute values.

            } catch (Exception e) {
                context.failure("Failed to apply inference optimizations" + ": " + e.getMessage());
                errorPoms.add(pomPath);
            } finally {
                context.unindent();
            }
        }

        return new UpgradeResult(processedPoms, modifiedPoms, errorPoms);
    }

    /**
     * Applies limited parent-related inference optimizations for Maven 4.0.0+ models.

                } catch (Exception e) {
                    context.failure("Failed to upgrade plugins: " + e.getMessage());
                    errorPoms.add(pomPath);
                } finally {
                    context.unindent();
                }
            }

            // Clean up temp directory
            cleanupTempDirectory(tempDir);

        } catch (Exception e) {

            }

            if (event.getArtifact() != null) {
                trackingData.add(indent.toString() + event.getArtifact());
                indent.append("  ");
            }
            trackingData.add(indent + plugin.getGroupId() + ":" + plugin.getArtifactId() + ":" + plugin.getVersion());
            indent.append("  ");

            InputLocation location = plugin.getLocation("");

                    // last ANSI escape code is reset: no next color
                    nextColor = "";
                }
            }

            // effective line, with indent and reset if end is colored
            line = indent + line + ("".equals(nextColor) ? "" : ANSI_RESET);

            if ((i == lines.length - 1)
                    && (context.options().showErrors().orElse(false)