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subchen / PlaceholderProperties.java
Last active January 3, 2016 20:38
PlaceholderProperties.java
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PlaceholderProperties extends Properties {
private static final long serialVersionUID = 1L;
private static final Pattern PARAMETER_PATTERN = Pattern.compile("\\$\\{([^}]*)\\}");
public PlaceholderProperties() {
super();
@subchen
subchen / ToStringBuilder.java
Created February 18, 2014 09:08
ToStringBuilder.java
import java.lang.reflect.*;
public class ToStringBuilder {
private final StringBuilder sb = new StringBuilder(32);
private final Object object;
private final boolean formatted;
public static String reflection(Object object) {
return reflection(object, true);
}
@subchen
subchen / request_dump.jsp
Created February 21, 2014 03:33
request_dump.jsp
<%@page contentType="text/html" pageEncoding="utf-8" trimDirectiveWhitespaces="true" %>
<%@page import="java.util.*" %>
<%@page import="java.io.*" %>
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8'>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>samples</title>
@subchen
subchen / eclipse.ini
Created April 16, 2014 02:21
eclipse.ini
-Xms512m
-Xmx512m
-Xmn128m
-XX:PermSize=256m
-XX:MaxPermSize=256m
-XX:-UseAdaptiveSizePolicy
-XX:+DisableExplicitGC
-Xverify:none
-XX:+UseParallelGC
-XX:+UseParallelOldGC
@subchen
subchen / entry_2_tab.js
Last active August 29, 2015 13:59
回车变Tab (IE, Chrome)
document.onkeydown = function(evt) {
var isie = (document.all) ? true : false;
var key;
var srcobj;
// if the agent is an IE browser， it is easy to do this.
if (isie) {
key = event.keyCode;
srcobj = event.srcElement;
} else {
key = evt.which;
@subchen
subchen / exception.txt
Created April 18, 2014 04:33
常用 RuntimeException
TypeNotPresentException
NullPointerException
IllegalArgumentException
IllegalStateException
UnsupportedOperationException
SecurityException
java.util.NoSuchElementException
java.util.MissingResourceException
java.lang.reflect.UndeclaredThrowableException
java.nio.charset.UnsupportedCharsetException
@subchen
subchen / Base62.java
Created April 23, 2014 02:18
Base62 for java
public class Base62 {
private static final char[] digitsChar = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
private static final int BASE = digitsChar.length;
private static final int FAST_SIZE = 'z';
private static final int[] digitsIndex = new int[FAST_SIZE + 1];
static {
for (int i = 0; i < FAST_SIZE; i++) {
@subchen
subchen / jetbrick-parent-pom.xml
Last active August 29, 2015 14:01
jetbrick-pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.github.subchen</groupId>
<artifactId>jetbrick-parent</artifactId>
<version>1.0.0</version>
@subchen
subchen / jetbrick-all-jar.xml
Last active August 29, 2015 14:01
jetbrick-all-pom.xml (maven aggregate project) - using maven-assembly-plugin
<?xml version="1.0" encoding="UTF-8"?>
<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2
http://maven.apache.org/xsd/assembly-1.1.2.xsd">
<id>all-in-one</id>
<formats>
<format>jar</format>
@subchen
subchen / hsdb
Created May 15, 2014 00:21
hsdb debug info
D:\temp>%JAVA_HOME%\bin\java -cp .;%JAVA_HOME%\lib\sa-jdi.jar sun.jvm.hotspot.CLHSDB
hsdb> attach 23296
Attaching to process 23296, please wait...
hsdb> class StringTest
StringTest @0x00000000fb077268
hsdb> whatis 0x00000000fb077268
Address 0x00000000fb077268: In perm generation perm [0x00000000fae00000,0x00000000fb077e50,0x00000000fc2c0000) space capacity = 21757952, 11.895604880459338 u
sed
hsdb> inspect 0x00000000fb077268
instance of InstanceKlass for StringTest @ 0x00000000fb077268 @ 0x00000000fb077268 (size = 592)