https://bz.apache.org/bugzilla/show_bug.cgi?id=63236
Bug ID: 63236
Summary: Reduce duplicate Strings
Product: Tomcat 9
Version: 9.0.16
Hardware: PC
OS: Mac OS X 10.1
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: pw...@pivotal.io
Target Milestone: -----
Some profiling of Tomcat reveals that it currently creates quite a few
duplicate String values. Most of these appear to be from objects created when
parsing the `mbeans-descriptors.xml` files. For example, `java.lang.String` is
a very common `type` attribute.
By using a Map technique as describe in
https://shipilev.net/jvm/anatomy-quarks/10-string-intern/ we could reduce
memory consumption.
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