https://issues.apache.org/bugzilla/show_bug.cgi?id=56293
Bug ID: 56293
Summary: WebappClassLoader does not cache META-INF/services
which leads to performance issues
Product: Tomcat 7
Version: 7.0.28
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: michael.thi...@saxsys.de
Since Tomcat 7.0.28, the WebappClassLoader does not cache any resources on the
classpath except .class and .properties files (see
https://issues.apache.org/bugzilla/show_bug.cgi?id=53081).
This leads to a massive performance problem in applications that contain .jars
on the classpath that use the ServiceLoader mechanism of Java 6 to bind
concrete XML readers and writers to their respective interfaces, since every
time the concrete instance is loaded, the WebappClassLoader has to open the
.jar to read which concrete implementation is used.
A possible solution might be that caching is enabled for all resources that
reside in the META-INF/services folder.
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