A jar file contains Java external dependencies such as classes, resources, and metadata. It is often used…
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Serialization is used to convert an object’s state into a format that can be easily stored or…
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In this article, we will see the potential causes and strategies for addressing “java.lang. OutOfMemoryError: unable to…
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Interfaces define contracts for classes to follow and are often associated with method declarations. They also contain…
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In Jackson, the JsonNode class represents a node in a JSON structure, which includes JSON objects, arrays,…
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A domain is a human-readable identifier that represents a specific web location. Usually, we extract the domain…
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The TimeUnit enum is part of the java.util.concurrent package and provides a set of time units, ranging…
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It is a very common requirement to find the timezone of users when they are spread across…
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Mockito is a popular Java library for creating mock objects in unit testing. In some cases, we…
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The URISyntaxException is an exception that occurs when constructing, parsing, or manipulating URIs with incorrect syntax. In…