Blog: java specialists |
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212 blogs
updated: 125 min. ago
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Each PrintStream uses about 25kb of memory. This might seem reasonable if we only have System.out and System.err. But what happens if we try...
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A nice puzzle to brighten your day - how can we make the Iterator think that the List has not been changed?
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Java 8 Streams were the first time that Java deliberately split utility classes into multiple versions to be used for Object, int, long and ...
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Java 8 Streams were the first time that Java deliberately split utility classes into multiple versions to be used for Object, int, long and ...
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A nice puzzle to brighten your day - how can we make the Iterator think that the List has not been changed?
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Biased locking has made unnecessary mutexes cheap for over a decade. However, it is disabled by default in Java 15, slated for removal. From...
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In our next puzzle, we up the ante a bit. We prevent GC during the test() method by storing a strong reference to all our Vectors. Cock and ...
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For today's puzzle, we are getting elements from Vector, sequentially and in parallel. But why is the performance so much worse in Java 15-e...
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The Java ReentrantReadWriteLock can never ever upgrade a read lock to a write lock. Kotlin's extension function ReentrantReadWriteLock.wr it...
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How much memory was wasted when an additional boolean field was added to java.lang.String in Java 13? None at all. This article explains why...
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