mbien commented on code in PR #6542:
URL: https://github.com/apache/netbeans/pull/6542#discussion_r1353972471
##########
enterprise/glassfish.tooling/src/org/netbeans/modules/glassfish/tooling/server/config/ConfigBuilderProvider.java:
##########
@@ -193,16 +209,13 @@ public static ConfigBuilder getBuilder(final
GlassFishServer server) {
"GlassFish server entity shall not be null");
}
ConfigBuilder builder;
- synchronized (builders) {
- builder = builders.get(server);
- if (builder != null) {
- return builder;
- }
- String serverHome = server.getServerHome();
- builder = new ConfigBuilder(config, serverHome, serverHome,
serverHome);
- builders.put(server, builder);
+ builder = builders.computeIfPresent(server, (key, value) -> value);
+ if (builder != null) {
+ return builder;
}
- return builder;
+ String serverHome = server.getServerHome();
+ return builders.computeIfAbsent(server, key ->
+ new ConfigBuilder(config, serverHome, serverHome, serverHome));
Review Comment:
the old version:
```java
synchronized {
// checked if `server` was in the map, if it was, it returned it.
// if it wasn't in the map, it created a new ConfigBuilder, registered
it in the map and returned it
}
```
this is the same as:
```java
String serverHome = server.getServerHome();
return builders.computeIfAbsent(server, key ->
new ConfigBuilder(config, serverHome, serverHome,
serverHome));
```
(If i am missing something, please explain)
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