Unnecessary synchronization overhead as StringBuffer is thread-safe but not needed in M3UAShellExecutor.java

[sgurivir]

RepoIQ (http://repoiq.ai) has identified potential optimization in showAs in m3ua/impl/src/main/java/org/restcomm/protocols/ss7/m3ua/impl/oam/M3UAShellExecutor.java

jss7/m3ua/impl/src/main/java/org/restcomm/protocols/ss7/m3ua/impl/oam/M3UAShellExecutor.java

Line 412 in 81a54df

StringBuffer sb = new StringBuffer();

Using StringBuffer instead of StringBuilder for single-threaded string concatenation

Impact: Unnecessary synchronization overhead as StringBuffer is thread-safe but not needed here

Potential Solution: Replace StringBuffer with StringBuilder for better performance in single-threaded context