carfield.com.hk

agent.txt

2023-05-04T12:27:29Z

http://www.takipioncode.com[..]1/07/double-agent-java-vs-native-agents/

List the pros of using native agent - http://apmblog.compuware.com[..]-for-application-performance-management/

Writing a Profiler in 240 Lines of Pure Java - https://mostlynerdless.de[..]ng-a-profiler-in-240-lines-of-pure-java/

security.txt

2023-04-21T23:07:50Z

Introduction to Java Encryption/Decryption - https://dev.java/learn/security/intro/

Java Serialization Filtering: Prevent 0-day Security Vulnerabilities - https://foojay.io[..]g-prevent-0-day-security-vulnerabilities

Using JCE with OpenSSL - http://kasparov.skife.org[..]ive/src/java/jce-openssl-redux.writeback

---------- Forwarded message ----------
From: "cab"
To:
Date: 10 Mar 2005 23:33:16 +0800
Subject: Re: CRC-32


java.util.zip.CRC32   crc32  =  new java.util.zip.CRC32();
crc32.update(byteArray);
long crcValue = crc32.getValue();

"Day Chan" 撰寫於郵件新聞:4230a15b$3@newsgroup.com.hk...
> Does anyone know how to calculate CRC-32 in Java?
> Thanks~

optional.txt

2023-03-08T12:38:40Z

The Beauty of Java Optional and Either - https://dzone.com/articles/the-beauty-of-java-optional-and-either

type.txt

2023-02-17T11:55:07Z

Autoboxing, Type can be changed - http://blog.jooq.org/2013/10/08/java-auto-unboxing-gotcha-beware/

Project Valhalla: A look inside Java’s epic refactor - https://www.infoworld.com[..]a-a-look-inside-javas-epic-refactor.html

java19.txt

2023-02-08T13:19:36Z

Structured Concurrency and Loom - https://www.loicmathieu.fr[..]ss/en/informatique/java-19-quoi-de-neuf/

Using Pattern Matching - https://dev.java/learn/pattern-matching

vector.txt

2022-12-10T12:45:08Z

FizzBuzz – SIMD Style! - https://www.morling.dev/blog/fizzbuzz-simd-style/

SIMD accelerated sorting in Java - how it works and why it was 3x faster - https://jbaker.io/2022/06/09/vectors-in-java/

image.txt

2022-07-06T13:31:29Z

Strategies of loading image, select difference API to load image in difference case - http://java.sun.com[..]rticles/Media/imagestrategies/index.html

The Perils of Image.getScaledInstance() , with more detail explanation of image handling - http://today.java.net[..]3/perils-of-image-getscaledinstance.html

In Part I we talk about the building blocks of metadata in images and how it may matter to you as developer. - https://hillert.com/blog/read-write-image-metadata-java-part-1/

java8.txt

2022-02-12T14:08:30Z

Introduction of Lambdas expression in Java - http://zeroturnaround.com/labs/java-8-the-first-taste-of-lambdas/ , an example show how lambdas help to clean up the duplication - http://www.nurkiewicz.com[..]mplifying-readwritelock-with-java-8.html

Another article about Java8 change, where Lambdas is the highlight - http://www.infoq.com/news/2013/08/everything-about-java-8 http://www.shaunabram.com/java8/

Nice tutorial - http://www.dreamsyssoft.com/java-8-lambda-tutorial/index.php

Huge list of articles - http://www.baeldung.com/java8

Use lambdas to replace for-loop - http://saltnlight5.blogspot.com.au[..]creating-your-own-loop-structure-in.html https://www.ibm.com/developerworks/library/j-java8idioms3

Overview for new Date/Time library - http://www.infoq.com/articles/java.time https://binkley.blogspot.com[..]/02/java-date-time-timezone-formats.html

http://www.javacodegeeks.com[..]om/2014/05/java-8-features-tutorial.html

Grouping and partitioning with stream - http://fahdshariff.blogspot.com[..]/11/java-8-streams-api-grouping-and.html
In a nutshell, make sure to never override a default method in another interface - http://mydailyjava.blogspot.com.au[..]va-8-default-methods-can-break-your.html

Convert SQL feature to stream - http://blog.jooq.org[..]and-their-equivalents-in-java-8-streams/

Simple overview of steam operation - https://www.javaprogramto.com[..]va-8-stream-intermediate-operations.html https://mydeveloperplanet.com/2020/09/23/java-streams-by-example

Behind the scenes: How do lambda expressions really work in Java? - https://blogs.oracle.com[..]o-lambda-expressions-really-work-in-java

Useful & Unknown Java Features - https://piotrminkowski.com[..]2022/01/05/useful-unknown-java-features/ https://www.infoq.cn/article/tWHfLK4Kxphu3JDhlds5

IO.txt

2022-01-09T13:41:28Z

Watch service, watch if directory changed - http://www.javacodegeeks.com/2012/02/java-7-watchservice.html

Tips of using bytebuffer - http://worldmodscode.wordpress.com[..]2/14/the-java-bytebuffer-a-crash-course/

path : ..\.\Java.txt
absolute path : C:\Users\WINDOWS 8\workspace\Demo\..\.\Java.txt
canonical path : C:\Users\WINDOWS 8\workspace\Java.txt

Read more: http://javarevisited.blogspot.com[..]getcanonicalpath-java.html#ixzz3A8Zya6YG

Jump to a position of a file, inputstream.skip() is faster than reader.skip(), and reader.skip() is faster than randomAccessFile.

Java & Files: An Introduction - https://www.marcobehler.com/guides/java-files

Modern file input/output with Java: Going fast with NIO and NIO.2 - https://blogs.oracle.com[..]2-buffers-channels-async-future-callback

java17.txt

2021-12-01T04:07:49Z

Writing a simple Filesystem using Fuse and java 17 - https://www.davidvlijmincx.com[..]imple_filesystem_using_fuse_and_java_17/

java16.txt

2021-09-09T00:17:05Z

https://www.infoq.com/articles/java-16-new-features

net.txt

2021-06-20T12:53:30Z

URL handler - http://skife.org[..]ibrary/2012/05/14/java_url_handlers.html , UrlSchemeRegistry.register("dinner", DinnerHandler.class);

Talking to Postgres Through Java 16 Unix-Domain Socket Channels - https://www.morling.dev[..]ugh-java-16-unix-domain-socket-channels/

debugging.txt

2021-06-18T00:28:23Z

VisualVM , a collection of tools for debugging and monitoring - http://www.infoq.com/news/2008/05/visualvm

Presentation of BTrace, which allow user to have event base tracing - https://btrace.dev.java.net[..]ts/8510/98299/BTrace_BOF-5552_J12008.pdf

JDK command line tools which help to solving memory issue - http://plumbr.eu/blog/solving-outofmemoryerror-jdk-tools

Show how to get stack trace and memory map from JVM dump - http://fahdshariff.blogspot.gr[..]gr/2012/08/analysing-java-core-dump.html

VM options about dumps - https://inside.java/2021/04/30/failed-writing-core-dump/

Graal.txt

2021-02-20T13:10:54Z

Java on Truffle — Going Fully Metacircular - https://medium.com[..]le-going-fully-metacircular-215531e3f840 https://www.infoq.cn/article/gTHX7fc0CLTtV9FCbGjO

JNI.txt

2020-10-08T00:22:27Z

Invoking Assembly Language Programs using java native interface - http://today.java.net/lpt/a/330

Best practices for using the Java Native Interface - http://www.ibm.com/developerworks/java/library/j-jni/index.html

Other library try to simple using native library - https://inside.java/2020/10/06/jextract/

java15.txt

2020-10-07T13:11:17Z

https://www.infoq.com/news/2020/09/java15-released

reflection.txt

2020-08-26T06:25:14Z

Good : dynamic, generic
Bad: slow, don't work with Obfuscators and most searching and refactoring tools

http://jroller.com/page/ie?entry=time_to_reconsider_reflection

A very nice tool to get parameter name - https://github.com/paul-hammant/paranamer (e.g.: user of getUser(User user))

How to improve the performance - http://coding-masters.blogspot.com[..]-reflection-as-fast-as-direct-calls.html

The problem of using reflection to modify final field - http://www.azulsystems.com[..]7-writing-to-final-fields-via-reflection

Using reflection for using test - http://www.javaadvent.com[..]f-hacking-enums-and-modifying-final.html

Sharing about using invokedynamic - http://www.infoq.com/presentations/invokedynamic http://www.infoq.com[..]ticles/Invokedynamic-Javas-secret-weapon https://www.infoq.com/articles/Invokedynamic-Javas-secret-weapon

LamdbaMetafactory is pretty fast. (*) - https://www.optaplanner.org[..]8/01/09/JavaReflectionButMuchFaster.html

java14.txt

2020-06-02T00:32:20Z

http://cr.openjdk.java.net[..]jlaskey/Strings/TextBlocksGuide_v10.html

https://ondro.inginea.eu[..]new-features-between-java-8-and-java-14/

JDK 14 Foreign-Memory Access API Overview - https://medium.com[..]-memory-access-api-overview-70951fe221c9

Pattern Matching for instanceof in Java 14 - https://blogs.oracle.com[..]ttern-matching-for-instanceof-in-java-14

unsafe.txt

2020-06-02T00:30:26Z

The infamous sun.misc.Unsafe explained: object creation, native memory allocation, native concurrency - http://mydailyjava.blogspot.hk/2013/12/sunmiscunsafe.html

Features that help for writing low latency application - http://vanillajava.blogspot.com[..]1/sunmiscunsafe-and-off-heap-memory.html

Tips of using unsafe - http://vanillajava.blogspot.com.au[..].com.au/2014/06/making-unsafe-safer.html

An overview of it - http://www.infoq.com[..]A-Post-Apocalyptic-sun.misc.Unsafe-World https://blogs.oracle.com[..]ine/the-unsafe-class-unsafe-at-any-speed

java9.txt

2019-07-04T13:07:54Z

http://www.infoq.com[..]s/The-OpenJDK9-Revised-Java-Memory-Model

http://www.javaadvent.com[..]15/12/project-jigsaw-hands-on-guide.html

Incompatibility across versions - http://marxsoftware.blogspot.hk[..]6/06/java-backwards-incompatibility.html

http2 client - https://www.javagists.com/http2-client-java-9

Using regex with lambda - https://javax0.wordpress.com[..]2017/08/16/new-regex-features-in-java-9/

the-java-platform-module-system - https://www.zoltanraffai.com/blog/the-java-platform-module-system

jdbc.txt

2017-05-18T02:28:15Z

5 things you didn't know about ... Java Database Connectivity - https://www.ibm.com/developerworks/library/j-5things10/index.html

javadoc.txt

2016-11-29T03:43:01Z

We can link java source in javadoc page: http://blogs.sun.com[..]amere/Weblog/cool_javadoc_trick#comments

http://marxsoftware.blogspot.hk[..]/inheriting-javadoc-method-comments.html

generics.txt

2014-01-06T08:30:32Z

As Java still need to support Collection.get(Object) , it is easy to get NPE if you use wrong type accidentally
http://jroller.com/page/sstirling?entry=map_get_object_and_java
I met this problem when using wicket, one cool feature of ListMultipleChoice is that if the list I press into the constructor is not List, it will persist the type information.
However, if you use this API carelessly and think the List return from the HTML form is always List . Then you will get strangle null pointer exception when you operate with the list instead of ClassCastException, as java will surpress the ClassCastException from ArrayList.get(i) sliencely and just return null to caller.

A related one but not really related to generics - http://www.pankaj-k.net/archives/2006/11/how_hard_is_tes.html , look like the behaviours difference of primittive and wrapper class at NULL is very easy to get hard to check bug

Another one, JDK generic try to cast to wrong class internally: http://jroller.com/page/dhall?entry=exploring_the_limits_of_java

Some cool feature, apply generic in comparable - http://tech.puredanger.com/2006/11/22/comparator-jdk5/

Wildcast in generic -http://javarevisited.blogspot.com[..]-is-bounded-and-unbounded-wildcards.html

http://javarevisited.blogspot.com.au[..]trized-class-method-Generic-example.html

http://mydailyjava.blogspot.com.au[..]6/advanced-java-generics-retreiving.html

i18n.txt

2013-12-10T03:58:22Z

Java: Moving conditions into Message files - http://www.mscharhag.com[..]the-java-classes-resourcebundle-and.html

image analysis.txt

2013-01-01T02:18:52Z

Using OpenCV to detect palm - http://www.javaadvent.com[..]d-and-finger-detection-using-javacv.html