java libs and tools info

dashboard.txt

https://vpsfree.org
https://vestacp.com/
http://browserstack.com  

Good analysis. People rush to “optimize the code” but they don’t bother to measure or look for the best algorithm.
Bug Hunting
https://amybughunter.files.wordpress.com/2013/01/defect_tracking_decide1.jpg


# mssql jdbc driver installation in maven for now on Nexus repository
mvn install:install-file -Dfile=sqljdbc4.jar -Dpackaging=jar -DgroupId=com.microsoft.sqlserver -DartifactId=sqljdbc4 -Dversion=4.0
mvn install:install-file -Dfile=sqljdbc41.jar -Dpackaging=jar -DgroupId=com.microsoft.sqlserver -DartifactId=sqljdbc41 -Dversion=4.1

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Run this on the commandline; it should solve issue:
# sudo iptables -A INPUT -m conntrack --ctstate NEW,RELATED,ESTABLISHED -j ACCEPT

To do a specific port:
# sudo iptables -A INPUT -p <tcp OR udp> <--dport OR --sport> <port> -j ACCEPT

INPUT is the chain for incoming traffic. -p is protocol (either tcp or udp --dport or --sport specify allowing for destination or source port. -j is "jump" and its where you ACCEPT, REJECT, or DROP the packet(s)

Details on iptables can be found by reading the man page. Since you're a beginner you'll probably find this useful: http://www.netfilter.org/documentation/HOWTO//packet-filtering-HOWTO.html
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Softwares 					Servlet version		JSP	 		min Java

0. Maven 3.2.5                                              JDK 1.5
0. Maven 3.3 and up                                         JDK 1.7 or above

1. Netbeans 8.0.2			 								(JDK) 7 Update 10 (or later) or JDK 8 is
																required to install NetBeans IDE.
2. Tomcat 7.*				Servlet 3.0			JSP 2.2		Java 6 or later JRE, Servlet 3.0, JSP 2.2
3. Tomcat 8.*				Servlet 3.1			JSP 2.3		Java 7 or later JRE, Servlet 3.1, JSP 2.3
4. Spring 4.x												JDK 6 update 25 or higher, as of Spring 4.0. *
				Servlet 3.0 (2.5 supported for deployment), JPA 2.0,
					Bean Validation 1.0, JSF 2.0, JCache 1.0, JDO 3.0 .
				Tomcat 6.0.33 / 7.0.20 / 8.0.9, Jetty 7.5, JBoss AS 6.1 ,
					GlassFish 3.1, Oracle WebLogic 10.3.4 with JPA 2.0, IBM WebSphere 7.0.0.9 with JPA 2.0 
	Note that Spring 3.0.x and 3.1.x lines have been retired already.
5. Spring 4.1.0.RELEASE										Java 8 (as well as 6 and 7), JavaEE 6 and 7,
																JMS 2.0, JTA 1.2, JPA 2.1, Bean Validation 1.1, 
																and JSR-236 Concurrency Utilities
5. Spring 3.1.0.RELEASE										Java 5, and Java 6 is fully supported.
6. Spring 2.5.0.RELEASE										Java 1.4.2, Java 5 and Java 6 are supported
7. Hibernate 3.2.x											Java 1.5 or greater
8. Hibernate 4.3.8.Final									Java 6 or higher 
		(building Hibernate from source requires JDK 7 due to a bug in the JDK 6 compiler).
9. Jetty 9.2				Servlet 3.1			JSP 2.3		Java 1.7, Servlet 3.1, JSp 2.3
10. Jetty 8.x				Servlet 3			JSP 2.2		Java 1.6, Servlet 3.0, JSp 2.2
11. Jetty 7.x				Servlet 2.5			JSP 2.1		Java 1.5, Servlet 2.5, JSp 2.1
12. Eclipse Juno (4.4)										Java 7 JRE/JDK is required for most of the Luna package
																downloads based on Eclipse 4.4
14. Eclipse Kepler (4.3)									Java 6 JRE/JDK is recommended for Eclipse 4.3
15. Apache commonsDBCP 2.x									DBCP 2 compiles and runs under Java 7 only (JDBC 4.1).
																DBCP 2 binaries should be used by applications running under Java 7.
16. Apache commonsDBCP 1.4									DBCP 1.4 compiles and runs under Java 6 only (JDBC 4).
																DBCP 1.4 binaries should be used by applications running under Java 6.
17. jackson 2.7.5                                           Runs on JRE 6 but not compile
18. jackson 2.8.x and up                                    JRE 7 or above


DI: https://github.com/zsoltherpai/feather | https://github.com/google/tiger | https://github.com/osglworks/java-di
Reflection: https://github.com/EsotericSoftware/reflectasm
Converter : https://github.com/brettwooldridge/HikariJSON
MVC       : https://github.com/actframework/actframework, https://github.com/osglworks/java-mvc

tomcat 8 vs 8.5 >> Locale: "en-US, en" vs "en-US" >> 8.5 Tomcat's cookie processing being changed to a RFC 6265 compliant implementation by default in 8.5, which does not allow space (character 32), among others.
<CookieProcessor className="org.apache.tomcat.util.http.LegacyCookieProcessor" />

Command alias- Cmdlet name Poweshell  -    	Description of command
%	     -    ForEach-Object	    -    	Performs an operation against each item in a collection of input objects.
?	     -    Where-Object	    -    	Selects objects from a collection based on their property values.
ac	     -    Add-Content	    -    	Appends content, such as words or data, to a file.
asnp	 -     	Add-PSSnapIn	    -    	Adds one or more Windows PowerShell snap-ins to the current session.
cat	     -    Get-Content	    -    	Gets the contents of a file.
cd	     -    Set-Location	    -    	Sets the current working location to a specified location.
chdir	 -     	Set-Location	    -    	Sets the current working location to a specified location.
clc	     -    Clear-Content	    -    	Deletes the contents of an item, but does not delete the item.
clear	 -     	Clear-Host	    -    	Clears the display in the host program.
clhy	 -     	Clear-History	    -    	Deletes entries from the command history.
cli	     -    Clear-Item	    -    	Deletes the contents of an item, but does not delete the item.
clp	     -    Clear-ItemProperty	    -    	Deletes the value of a property but does not delete the property.
cls	     -    Clear-Host	    -    	Clears the display in the host program.
clv	     -    Clear-Variable	    -    	Deletes the value of a variable.
cnsn	 -     	Connect-PSSession	    -    	Reconnects to disconnected sessions
compare	 -     	Compare-Object	    -    	Compares two sets of objects.
copy	 -     	Copy-Item	    -    	Copies an item from one location to another.
cp	     -    Copy-Item	    -    	Copies an item from one location to another.
cpi	     -    Copy-Item	    -    	Copies an item from one location to another.
cpp	     -    Copy-ItemProperty	    -    	Copies a property and value from a specified location to another location.
curl	 -     	Invoke-WebRequest	    -    	Gets content from a webpage on the Internet.
cvpa	 -     	Convert-Path	    -    	Converts a path from a Windows PowerShell path to a Windows PowerShell provider path.
dbp	     -    Disable-PSBreakpoint	    -    	Disables the breakpoints in the current console.
del	     -    Remove-Item	    -    	Deletes files and folders.
diff	 -     	Compare-Object	    -    	Compares two sets of objects.
dir	     -    Get-ChildItem	    -    	Gets the files and folders in a file system drive.
dnsn	 -     	Disconnect-PSSession	    -    	Disconnects from a session.
ebp	     -    Enable-PSBreakpoint	    -    	Enables the breakpoints in the current console.
echo	 -     	Write-Output	    -    	Sends the specified objects to the next command in the pipeline. If the command is the last command in the pipeline, the objects are displayed in the console.
epal	 -     	Export-Alias	    -    	Exports information about currently defined aliases to a file.
epcsv	 -     	Export-Csv	    -    	Converts objects into a series of comma-separated (CSV) strings and saves the strings in a CSV file.
epsn	 -     	Export-PSSession	    -    	Imports commands from another session and saves them in a Windows PowerShell module.
erase	 -     	Remove-Item	    -    	Deletes files and folders.
etsn	 -     	Enter-PSSession	    -    	Starts an interactive session with a remote computer.
exsn	 -     	Exit-PSSession	    -    	Ends an interactive session with a remote computer.
fc	     -    Format-Custom	    -    	Uses a customized view to format the output.
fl	     -    Format-List	    -    	Formats the output as a list of properties in which each property appears on a new line.
foreach	 -     	ForEach-Object	    -    	Performs an operation against each item in a collection of input objects.
ft	     -    Format-Table	    -    	Formats the output as a table.
fw	     -    Format-Wide	    -    	Formats objects as a wide table that displays only one property of each object.
gal	     -    Get-Alias	    -    	Gets the aliases for the current session.
gbp	     -    Get-PSBreakpoint	    -    	Gets the breakpoints that are set in the current session.
gc	     -    Get-Content	    -    	Gets the contents of a file.
gci	     -    Get-ChildItem	    -    	Gets the files and folders in a file system drive.
gcm	     -    Get-Command	    -    	Gets all commands.
gcs	     -    Get-PSCallStack	    -    	Displays the current call stack.
gdr	     -    Get-PSDrive	    -    	Gets drives in the current session.
ghy	     -    Get-History	    -    	Gets a list of the commands entered during the current session.
gi	     -    Get-Item	    -    	Gets files and folders.
gjb	     -    Get-Job	    -    	Gets Windows PowerShell background jobs that are running in the current session.
gl	     -    Get-Location	    -    	Gets information about the current working location or a location stack.
gm	     -    Get-Member	    -    	Gets the properties and methods of objects.
gmo	     -    Get-Module	    -    	Gets the modules that have been imported or that can be imported into the current session.
gp	     -    Get-ItemProperty	    -    	Gets the properties of a specified item.
gps	     -    Get-Process	    -    	Gets the processes that are running on the local computer or a remote computer.
group	 -     	Group-Object	    -    	Groups objects that contain the same value for specified properties.
gsn	     -    Get-PSSession	    -    	Gets the Windows PowerShell sessions on local and remote computers.
gsnp	 -     	Get-PSSnapIn	    -    	Gets the Windows PowerShell snap-ins on the computer.
gsv	     -    Get-Service	    -    	Gets the services on a local or remote computer.
gu	     -    Get-Unique	    -    	Returns unique items from a sorted list.
gv	     -    Get-Variable	    -    	Gets the variables in the current console.
gwmi	 -     	Get-WmiObject	    -    	Gets instances of Windows Management Instrumentation (WMI) classes or information about the available classes.
h	     -    Get-History	    -    	Gets a list of the commands entered during the current session.
history	 -     	Get-History	    -    	Gets a list of the commands entered during the current session.
icm	     -    Invoke-Command	    -    	Runs commands on local and remote computers.
iex	     -    Invoke-Expression	    -    	Runs commands or expressions on the local computer.
ihy	     -    Invoke-History	    -    	Runs commands from the session history.
ii	     -    Invoke-Item	    -    	Performs the default action on the specified item.
ipal	 -     	Import-Alias	    -    	Imports an alias list from a file.
ipcsv	 -     	Import-Csv	    -    	Creates table-like custom objects from the items in a CSV file.
ipmo	 -     	Import-Module	    -    	Adds modules to the current session.
ipsn	 -     	Import-PSSession	    -    	Imports commands from another session into the current session.
irm	     -    Invoke-RestMethod	    -    	Sends an HTTP or HTTPS request to a RESTful web service.
ise	     -    powershell_ise.exe	    -    	Explains how to use the PowerShell_ISE.exe command-line tool.
iwmi	 -     	Invoke-WMIMethod	    -    	Calls Windows Management Instrumentation (WMI) methods.
iwr	     -    Invoke-WebRequest	    -    	Gets content from a web page on the Internet.
kill	 -     	Stop-Process	    -    	Stops one or more running processes.
lp	     -    Out-Printer	    -    	Sends output to a printer.
ls	     -    Get-ChildItem	    -    	Gets the files and folders in a file system drive.
man	     -    help	    -    	Displays information about Windows PowerShell commands and concepts.
md	     -    mkdir	    -    	Creates a new item.
measure	 -     	Measure-Object	    -    	Calculates the numeric properties of objects, and the characters, words, and lines in string objects, such as files of text.
mi	     -    Move-Item	    -    	Moves an item from one location to another.
mount	 -     	New-PSDrive	    -    	Creates temporary and persistent mapped network drives.
move	 -     	Move-Item	    -    	Moves an item from one location to another.
mp	     -    Move-ItemProperty	    -    	Moves a property from one location to another.
mv	     -    Move-Item	    -    	Moves an item from one location to another.
nal	     -    New-Alias	    -    	Creates a new alias.
ndr	     -    New-PSDrive	    -    	Creates temporary and persistent mapped network drives.
ni	     -    New-Item	    -    	Creates a new item.
nmo	     -    New-Module	    -    	Creates a new dynamic module that exists only in memory.
npssc	 -     	New-PSSessionConfigurationFile	    -    	Creates a file that defines a session configuration.
nsn	     -    New-PSSession	    -    	Creates a persistent connection to a local or remote computer.
nv	     -    New-Variable	    -    	Creates a new variable.
ogv	     -    Out-GridView	    -    	Sends output to an interactive table in a separate window.
oh	     -    Out-Host	    -    	Sends output to the command line.
popd	 -     	Pop-Location	    -    	Changes the current location to the location most recently pushed to the stack. You can pop the location from the default stack or from a stack that you create by using the Push-Location cmdlet.
ps	     -    Get-Process	    -    	Gets the processes that are running on the local computer or a remote computer.
pushd	 -     	Push-Location	    -    	Adds the current location to the top of a location stack.
pwd	     -    Get-Location	    -    	Gets information about the current working location or a location stack.
r	     -    Invoke-History	    -    	Runs commands from the session history.
rbp	     -    Remove-PSBreakpoint	    -    	Deletes breakpoints from the current console.
rcjb	 -     	Receive-Job	    -    	Gets the results of the Windows PowerShell background jobs in the current session.
rcsn	 -     	Receive-PSSession	    -    	Gets results of commands in disconnected sessions.
rd	     -    Remove-Item	    -    	Deletes files and folders.
rdr	     -    Remove-PSDrive	    -    	Deletes temporary Windows PowerShell drives and disconnects mapped network drives.
ren	     -    Rename-Item	    -    	Renames an item in a Windows PowerShell provider namespace.
ri	     -    Remove-Item	    -    	Deletes files and folders.
rjb	     -    Remove-Job	    -    	Deletes a Windows PowerShell background job.
rm	     -    Remove-Item	    -    	Deletes files and folders.
rmdir	 -     	Remove-Item	    -    	Deletes files and folders.
rmo	     -    Remove-Module	    -    	Removes modules from the current session.
rni	     -    Rename-Item	    -    	Renames an item in a Windows PowerShell provider namespace.
rnp	     -    Rename-ItemProperty	    -    	Renames a property of an item.
rp	     -    Remove-ItemProperty	    -    	Deletes the property and its value from an item.
rsn	     -    Remove-PSSession	    -    	Closes one or more Windows PowerShell sessions (PSSessions).
rsnp	 -     	Remove-PSSnapin	    -    	Removes Windows PowerShell snap-ins from the current session.
rujb	 -     	Resume-Job	    -    	Restarts a suspended job
rv	     -    Remove-Variable	    -    	Deletes a variable and its value.
rvpa	 -     	Resolve-Path	    -    	Resolves the wildcard characters in a path, and displays the path contents.
rwmi	 -     	Remove-WMIObject	    -    	Deletes an instance of an existing Windows Management Instrumentation (WMI) class.
sajb	 -     	Start-Job	    -    	Starts a Windows PowerShell background job.
sal	     -    Set-Alias	    -    	Creates or changes an alias (alternate name) for a cmdlet or other command element in the current Windows PowerShell session.
saps	 -     	Start-Process	    -    	Starts one or more processes on the local computer.
sasv	 -     	Start-Service	    -    	Starts one or more stopped services.
sbp	     -    Set-PSBreakpoint	    -    	Sets a breakpoint on a line, command, or variable.
sc	     -    Set-Content	    -    	Replaces the contents of a file with contents that you specify.
select	 -     	Select-Object	    -    	Selects objects or object properties.
set	     -    Set-Variable	    -    	Sets the value of a variable. Creates the variable if one with the requested name does not exist.
shcm	 -     	Show-Command	    -    	Creates Windows PowerShell commands in a graphical command window.
si	     -    Set-Item	    -    	Changes the value of an item to the valu