Grzegorz Grzybek created CAMEL-15061:
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Summary: Performance issues with classMap.computeIfAbsent() in
DefaultFactoryFinder
Key: CAMEL-15061
URL: https://issues.apache.org/jira/browse/CAMEL-15061
Project: Camel
Issue Type: Bug
Reporter: Grzegorz Grzybek
Assignee: Grzegorz Grzybek
When Camel routes start, there are unnecessary calls from class
DefaultFactoryFinder in method
{code}
protected Class<?> addToClassMap(String key, ClassSupplier mappingFunction)
throws ClassNotFoundException, IOException {
try {
return classMap.computeIfAbsent(key, (String classKey) -> { ...
{code}
In a Karaf environment with the Java security manager enabled, this causes a
massive delay in starting Camel routes, since there are thousands of calls into
org.apache.felix.framework.BundleImpl.getEntry(), which is then authorised by
the Java Security Manager. Its seems a bulk of these calls could be avoided if
the call to classMap.computeIfAbsent() dealt with null values as well.
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