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Most XML namespace bugs come from three decisions: where you declare prefixes, whether you remember the default namespace ignores attributes, and whether your parser is namespace‑aware. Here’s a practical discipline for all three.
When processing XML in Java, picking DOM, SAX, or StAX affects memory usage, code complexity, and flexibility. This guide shows how to choose based on file size and access patterns.
Guide to picking SAX, DOM or StAX based on memory, speed and ease of use, with a table, trade‑offs and a sample SAX implementation.