SLING-9218 configuration writeback must emit comments starting with
correct prefix
diff --git a/src/main/java/org/apache/sling/installer/provider/file/impl/FileInstaller.java b/src/main/java/org/apache/sling/installer/provider/file/impl/FileInstaller.java
index c074f84..44c02b1 100644
--- a/src/main/java/org/apache/sling/installer/provider/file/impl/FileInstaller.java
+++ b/src/main/java/org/apache/sling/installer/provider/file/impl/FileInstaller.java
@@ -205,7 +205,8 @@
final File file = new File(path);
file.getParentFile().mkdirs();
try (OutputStream fos = new BufferedOutputStream(new FileOutputStream(file))) {
- fos.write("# Configuration created by Apache Sling File Installer\n".getBytes(StandardCharsets.UTF_8));
+ // comments starting with "//" allowed according to https://osgi.org/specification/osgi.cmpn/7.0.0/service.configurator.html#d0e131566
+ fos.write("// Configuration created by Apache Sling File Installer\n".getBytes(StandardCharsets.UTF_8));
ConfigurationSerializer serializer = ConfigurationSerializerFactory.create(ConfigurationSerializerFactory.Format.JSON);
serializer.serialize(dict, fos);
}