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Posts: Java articles

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#Knowledge #Java
Nov 14 2024
YYYY? yyyy!
Vladislav Bogdanov
Do you know what's the difference between the 'Y' and 'y' characters in the Java date pattern? In this article, we'll explore how an incorrect date format can cause an error. We'll also introduce...
...
#Java
Oct 16 2024
Belay the Metamorphosis: analyzing Kafka project
Vladislav Bogdanov
Have you ever wondered what bugs might be lurking in the project source code of global companies? Don't miss the chance to spot interesting bugs detected by the PVS-Studio static analyzer in...
...
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#Java
Sep 18 2024
Mapping paths through GeoServer source code
Evgenii Slepyshkov
Accurate and detailed maps are incredibly helpful to travelers, whether they're planning a trip trying not to get lost in the middle of nowhere. GeoServer assists in processing such data on...
...
#Knowledge #StaticAnalysis #Java
Aug 14 2024
How to develop code analyzer in 48 hours
Viktoria Pelipenko, Kirill Epifanov, Konstantin Volohovsky
Static analysis is a robust tool that helps developers to control code quality. Let's try to develop a simple analyzer for Lua using Java and see what's under the static analyzer...
...
#Java
Aug 09 2024
Even great mathematicians make mistakes
Evgenii Slepyshkov
We know that math is a science of precision. Can we say the same about GeoGebra, an interactive math learning software? Let's analyze the project source code using...
...
#Java
Jul 31 2024
Search query for bugs in Apache Solr
Daniil Liakhov
Once again, we're checking the Apache product. This time we chose Solr, an open-source search server platform. Solr enables you quickly and efficiently search for information in databases and...
...
#Java
Jul 12 2024
Authorization pitfalls: what does Keycloak cloak?
Valerii Filatov
User authorization and registration are important parts of any application, not only for users but also for security. What pitfalls does the source code of a popular open-source identity...
...
#Knowledge #Java
Jun 21 2024
Bitwise operators in Java: unpacking ambiguities
Kirill Epifanov
The "&" and "|" operators are pretty straightforward and unambiguous when applied correctly. But do you know all the implications of using bitwise operators instead of logical ones in Java? In...
...
#Knowledge #Java
Jun 17 2024
How template method can ruin your Java code
Konstantin Volohovsky
OOP is wonderful. Programmers usually criticize those who don't follow this paradigm, while the knowledge of patterns is often a must. However, even the right approach doesn't completely protect...
...
#Knowledge #Java
Jun 05 2024
Volatile, DCL, and synchronization pitfalls in Java
Konstantin Volohovsky
What if common knowledge is actually more nuanced, and old familiar things like Double-checked locking are quite controversial? Examining the code of real projects gives this kind of thought. In...
...
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