} catch (ConfigPropertyNotFoundException e) {
            assertEquals("non.existent.property", e.getMessage());
        }
    }

    // Test isExtensionAllowed method
    /*
    // Commented out - methods don't exist in FessConfig
    public void test_isExtensionAllowed() {
        assertTrue(fessConfig.isExtensionAllowed("jpg"));
        assertTrue(fessConfig.isExtensionAllowed("jpeg"));

	envEntry = strings.TrimSpace(envEntry)
	if envEntry == "" {
		// Skip all empty lines
		return envKV{
			Skip: true,
		}, nil
	}
	if strings.HasPrefix(envEntry, "#") {
		// Skip commented lines
		return envKV{
			Skip: true,
		}, nil
	}
	envTokens := strings.SplitN(strings.TrimSpace(strings.TrimPrefix(envEntry, "export")), config.EnvSeparator, 2)
	if len(envTokens) != 2 {