Dmitriy Dumanskiy

Dmitriy Dumanskiy has asked 39 questions and find answers to 7 problems.

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My specialization is java and performance optimizations.

Dmitriy Dumanskiy questions

Are Class.cast and Class.isInstance methods in Java 9 actually intrinsic when invoking via class variable?
Why lambda IntStream.anyMatch() is 10 slower than naive implementation?
Why RecordComponent doesn't have annotation info that is defined in the Records class in Java 17?
How do I get all Record fields and its values via reflection in Java 17?
Is there is a faster alternative for Integer.toString(myInt).getBytes(US_ASCII)?
Why does my Oracle JVM create all these objects for a simple 'Hello World' program?
Why is Arrays.copyOf 2 times faster than System.arraycopy for small arrays?
How to export all packages from Java 9 module? [duplicate]
How to exclude module-info.java from checkstyle plugin checks?
Why is String concatenation faster than String.valueOf for converting an Integer to a String?

Dmitriy Dumanskiy answers

How to find a root cause of the following netty error: io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 16777216 byte(s)
How to set maximum concurrent connections with netty
Netty as High Performant Http Server to Handle ~2-3 Million Requests/Sec
How to execute business logic handler in a separate thread pool using netty
Clickhouse JDBC driver class name
How to create a authentication token using Java