To resolve the conflicting or being different Mac address

 ■ You might meet the following error when importing an images on VirtualBox.

 ■ How to solve the troubleshooting on CentOs

1, Check the net

2, Edit /etc/udev/rules.d/70-persistent-net.rules

    $ vim /etc/udev/rules.d/70-persistent-net.rules

3, Check to work as a restarting the network.

■ There is the following error when loading a image exported in Windows 10.

■ You should do the following process to solve the problem.

1, Open command prompt as Administrator.

2, Run bcdedit to check hypervisor status:

3, hypervisorlaunchtype should be disabled.

    $ bcdedit /set hypervisorlaunchtype off

Troubleshooting - it doesn't work after Installing Virtualbox in Mint 18.1 Linux

■ Have to make the following file.

sudo touch /etc/libuser.conf

Troubleshooting - Content type 'application/json;charset=UTF-8' not supported

■ There was no problem when testing on Gradle JettyRun.
But After deployed an application, The following error appeared in the log file.

02 Oct 2016;02:05:58.666 [http-nio-8080-exec-6] ERROR c.a.c.AbstractBaseController.handleException(167) - Exception's trace:
org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'application/json;charset=UTF-8' not supported
    at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver.readWithMessageConverters(AbstractMessageConverterMethodArgumentResolver.java:235) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:149) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.resolveArgument(RequestResponseBodyMethodProcessor.java:127) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
    at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:121) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
    at
 ...
 ...

■ How to solve this problem.
Add the jar module into build.gradle as below.

dependencies {
...
compile 'com.fasterxml.jackson.core:jackson-databind:2.8.3'
...
}

Troubleshooting - org.eclipse.osgi.internal.framework.EquinoxConfiguration$1

■I have got an error message on Eclipse as below.

■For resolving, I added the following parameters into eclipse.ini.

-Dosgi.configuration.area.default=null
-Dosgi.user.area.default=null
-Dosgi.user.area=@user.dir

Https - You have to make the SSLHandshake on server.

■ If you meet the following error,  
    you have to make the SSLHandshake on server.

13:35:40.065 [scheduler-1] ERROR j.a.common.api.ApiHttpClient - https://domain.com/daily/2014-02-06:2014-02-09?access_token=999AAABBB-999AAABBB-999AAABBB API Exception: ekey=
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) ~[na:1.7.0_21]
        at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1886) ~[na:1.7.0_21]
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276) ~[na:1.7.0_21]
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270) ~[na:1.7.0_21]
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1341) ~[na:1.7.0_21]
        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153) ~[na:1.7.0_21]
        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868) ~[na:1.7.0_21]
        at sun.security.ssl.Handshaker.process_record(Handshaker.java:804) ~[na:1.7.0_21]
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1016) ~[na:1.7.0_21]
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312) ~[na:1.7.0_21]
        at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:702) ~[na:1.7.0_21]
        at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:122) ~[na:1.7.0_21]
        at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) ~[na:1.7.0_21]

■ Download from here
http://java-use-examples.googlecode.com/svn/trunk/src/com/aw/ad/util/InstallCert.java

$ java InstallCert domain.com

Loading KeyStore /usr/local/java/jre/lib/security/cacerts...
Opening connection to domain.com:443...
Starting SSL handshake...

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
        at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1886)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1341)
        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153)
        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)
        at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1016)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323)
        at InstallCert.main(InstallCert.java:97)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:385)
        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
        at sun.security.validator.Validator.validate(Validator.java:260)
        at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326)
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:107)
        at InstallCert$SavingTrustManager.checkServerTrusted(InstallCert.java:192)
        at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:813)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1323)
        ... 8 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:196)
        at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:268)
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380)
        ... 16 more

Server sent 1 certificate(s):

 1 Subject CN=172.26.212.33, OU=Aaaaaa Section, O="Cccccccc Inc.", L=Shibuya, ST=Tokyo, C=JP
   Issuer  CN=172.26.212.33, OU=Aaaaaa Section, O="Ccccccccc Inc.", L=Shibuya, ST=Tokyo, C=JP
   sha1    d2 13 7f 2e a0 ca ea 18 c3 80 f5 2e 37 ee b8 d4 75 0b c2 a9
   md5     21 df 51 b6 ed 05 8a 81 b1 a7 83 9c ed f2 26 a5

Enter certificate to add to trusted keystore or 'q' to quit: [1]
1

[
[
  Version: V1
  Subject: CN=22.22.22.22, OU=Aaaaa Section, O="Ccccccc, Inc.", L=Sssss, ST=Ttttt, C=JP
  Signature Algorithm: SHA1withRSA, OID = 1.2.340.531549.4.1.5

  Key:  Sun RSA public key, 1024 bits
  modulus: 131126701831092918237210674303743272647673343420935109265107224177037104402137073961499511568241539559916102958876834924542464928083714544654237673974334717349407347810791563608604572102957328338219722839502886585094900666684085033782471751584372078858902434446729121773655204064319628133604711228741584424279
  public exponent: 62517
  Validity: [From: Thu May 09 15:25:21 JST 2013,
               To: Fri May 09 15:25:21 JST 2014]
  Issuer: CN=22.22.22.22, OU=Aaaaaa Section, O="Ccccc, Inc.", L=Sssss, ST=Tokyo, C=JP
  SerialNumber: [    e5d42c16 bd5a7e46]

]
  Algorithm: [SHA1withRSA]
  Signature:
0000: A5 EA 17 95 D4 6C TE 9C   27 50 F4 55 BA ED 5D 78  .....l..'P.U..]x
0010: 87 D3 79 84 69 5D FF BE   07 74 F4 F5 A6 DE EF D5  ..y.i]...t......
0020: 02 7C 20 8C FC E6 0A 4D   C8 86 73 56 CB 8C 88 07  .. ....M..sV....
0030: 18 F6 CE E1 46 1B 0E 6D   98 67 95 94 73 05 91 30  ....F..m.g..s..0
0040: 0F 2D 79 F6 B3 04 09 8E   8A DF 9E 8E B3 DF FB AA  .-y.............
0050: Q7 T9 30 68 F7 Y3 0A 3B   81 5A AD DF F5 44 F3 A6  ..0h...;.Z...D..
0060: 21 0B 3A A4 AD E4 81 E2   30 64 E3 D1 83 0A 5C 34  !.:.....0d....\4
0070: EF 5A 34 03 E8 ET C2 2B   5A 43 AQ 90 92 75 17 FE  .Z4....+ZC...u..

]

Added certificate to keystore 'jssecacerts' using alias 'domain.com-1'

■ Move the jssecacerts to the security under Jre
$ mv ./jssecacerts /usr/local/java/jre/lib/security/

Gradle - [Fatal Error] jsp-* Already seen doctype.

■ When Refresh Dependencies was executed, the following error occurred.

BUILD SUCCESSFUL

Total time: 0.337 secs

[Fatal Error] jsp-api-2.1-6.1.14.pom:2:10: Already seen doctype.

[Fatal Error] jsp-2.1-6.1.14.pom:2:10: Already seen doctype.

[Fatal Error] servlet-api-2.5-6.1.14.pom:2:10: Already seen doctype.

[Fatal Error] jaxb-api-2.1.pom:2:10: Already seen doctype.

[Fatal Error] jasper-compiler-5.5.23.pom:2:10: Already seen doctype.

[Fatal Error] jasper-runtime-5.5.23.pom:2:10: Already seen doctype.

[Fatal Error] jsp-api-2.1-6.1.14.pom:2:10: Already seen doctype.

[Fatal Error] jsp-2.1-6.1.14.pom:2:10: Already seen doctype.

[Fatal Error] servlet-api-2.5-6.1.14.pom:2:10: Already seen doctype.

[Fatal Error] jasper-compiler-5.5.23.pom:2:10: Already seen doctype.

[Fatal Error] jasper-runtime-5.5.23.pom:2:10: Already seen doctype.

■ Before change

repositories {

    mavenLocal()

    mavenCentral()

}

■ After change

repositories {

    mavenCentral()

    mavenLocal()

}

■ Try to execute it again.

BUILD SUCCESSFUL

Total time: 0.653 secs

Eclipse - Execute the eclipse after I updated the mac OS.

■ After you updated mac OS, If your mac show the following error message when execute the Eclipse. 

■■■ This is the solution ■■■

■ Move the java home

$ cd /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/

■ Edit the following file.

$ sudo vim ./Info.plist

# Before

<key>JVMCapabilities</key>
 <array>
  <string>CommandLine</string>
 </array>

# After

<key>JVMCapabilities</key>
 <array>
  <string>JNI</string>
  <string>BundledApp</string>
  <string>CommandLine</string>
 </array>

■ If it doesn't changed anything, make the directory

$ sudo mkdir -p /System/Library/Java/JavaVirtualMachines/1.6.0.jdk
$ sudo mkdir -p /System/Library/Java/Support/Deploy.bundle

Linux - You may get the following warning message when you login in Linux.

PC-4096:~ A11260$ ssh userId@172.xxx.xxx.1
Last login: Wed Apr 22 05:12:38 2015 from 172.17.90.xx
-bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory

■ The following check box should be not checked.

 @ A selected data might be garbled in your Mysql.

The solutions for communicating on SSH Commend

@ If you faced the following error, the solution would help you

@ Error 1
>Pseudo-terminal will not be allocated because stdin is not a terminal.
@ the solution 1
@ [-oStrictHostKeyChecking=no] Option make a fingerprint to write in a known_hosts
@ (maybe -T -oStrictHostKeyChecking=no)
$ ssh -oStrictHostKeyChecking=no user@somehost sudo /home/tomcat/sh/sample.sh

@ Error 2
>sudo: sorry, you must have a tty to run sudo
@ the solution 1
$ ssh -t -oStrictHostKeyChecking=no user@somehost sudo /home/tomcat/sh/sample.sh
or
@ Comment the requiretty in /etc/sudoers like the following
#Defaults requiretty 

@ Extra explanation.
@ -T Disable pseudo-tty allocation.
@ -t Force pseudo-tty allocation.

http://aero.sarang.net/blog/2009/01/ssh-1.html

Git - The current branch is not configured for pull

Sometime you see the error like the following message.

Solve:
You tell Git the explicit branch you want to pull.
You need to add this to your .git/config
--------------------------------------------------
[branch "master"]
  remote = origin
  merge = refs/heads/master
-------------------------------------------------

Troubleshooting - The host I/O cache for at least one controller is error

Troubleshooting - How do I use JDK 7 on Mac OSX?

@You get a error in eclipse in Mac, 
/Library/Java/JavaVirtualMachines/1.7.0.jdk cannot execute binary file

1. I Downloaded the latest OpenJDK 1.7 universal (32/64 bits) JDK from Mac OS/X branch from http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
2. copied the jdk to /Library/Java/JavaVirtualMachines/ next to the default 1.6.0 one
3. In Eclipse > Preferences > Java > Installed JREs you add a new one, of type MacOS X VM, and set the home as /Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home and name Java SE 7 (OpenJDK)
4. Click Finish
5. Set the added JRE as default

@Thank you 
http://stackoverflow.com/questions/6267392/how-do-i-use-jdk-7-on-mac-osx

Linux - B85M-ITX

@I installed the CentOs6.5, but the lan card wasn't work.

@I tried to install the following module to fix the network problem.

$ wget http://elrepo.org/linux/elrepo/el6/x86_64/RPMS/kmod-alx-0.0-8.el6.elrepo.x86_64.rpm
$ rpm -Uvh ./kmod-alx-0.0-8.el6.elrepo.x86_64.rpm

@ Added the network file

$ vim /etc/sysconfig/network

@ Added the network file

$ vim /etc/sysconfig/network-scripts/ifcfg-eth0

Troubleshooting - When a data is putted into the Hive.

@  The permission is cause that the following is error.
@ You'd better change date on the log file.
--------------------------------------------------------------------
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.MoveTask
(88 bytes are truncated)

Git - Install Gitolite on the CentOs

$ ./install -to /usr/local/gitolite/bin
Can't locate Time/HiRes.pm in @INC (@INC contains: /home/git/gitolite/src/lib /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /home/git/gitolite/src/lib/Gitolite/Common.pm line 74.
BEGIN failed--compilation aborted at /home/git/gitolite/src/lib/Gitolite/Common.pm line 74.
Compilation failed in require at ./install line 15.
BEGIN failed--compilation aborted at ./install line 15.
-----------------------------------------------------------------------------

@You should install the following Perl module. 

$ yum install perl-Time-HiRes

Troubleshooting - Maven

 @If you get an error the following error(or OutOfMemory) in Maven Compile and Test.
-----------------------------------------------------------------------------------------
Exception in thread "main" java.lang.StackOverflowError
    at sun.nio.cs.UTF_8.updatePositions(UTF_8.java:77)
    at sun.nio.cs.UTF_8$Encoder.encodeArrayLoop(UTF_8.java:564)
    at sun.nio.cs.UTF_8$Encoder.encodeLoop(UTF_8.java:619)
    at java.nio.charset.CharsetEncoder.encode(CharsetEncoder.java:561)
    at sun.nio.cs.StreamEncoder.implWrite(StreamEncoder.java:271)
    at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:125)
    at java.io.OutputStreamWriter.write(OutputStreamWriter.java:207)
    at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:129)
    at java.io.PrintStream.write(PrintStream.java:526)
    at java.io.PrintStream.print(PrintStream.java:669)
    at java.io.PrintStream.println(PrintStream.java:806)
    at org.apache.maven.cli.PrintStreamLogger.info(PrintStreamLogger.java:111)
    at org.codehaus.plexus.logging.AbstractLogger.info(AbstractLogger.java:51)
    at org.codehaus.plexus.archiver.AbstractArchiver$1.hasNext(AbstractArchiver.java:478)
    at org.codehaus.plexus.archiver.AbstractArchiver$1.hasNext(AbstractArchiver.java:481)
-----------------------------------------------------------------------------------------
@Solution
In your mvn.sh add this as the first line after the copyright and other comments.
#----------------------------------------------------------------------------------------- 
export MAVEN_OPTS="-Xms128m -Xmx1024m -Xss128m"
#----------------------------------------------------------------------------------------- 

Troubleshooting - Hive

@When you see the following error.
----------------------------------------------------------------
FAILED: SemanticException [Error 10035]: Column repeated in partitioning columns
----------------------------------------------------------------
@Solution
sudo -u hdfs hive -e "CREATE TABLE table_temp (time string, aaa string, bbb string, dt string) partitioned by(dt string) ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t' STORED AS SEQUENCEFILE;"

Troubleshooting - An error has occurred in Eclipse

For resolve this problem

$ eclipse -clean

---------------------------------------------------------------------------------
!ENTRY org.eclipse.osgi 4 0 2013-12-13 18:44:55.618
!MESSAGE Startup error
!STACK 1
java.lang.RuntimeException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle org.eclipse.osgi.
    at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.resume(InternalSystemBundle.java:233)
    at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:657)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:274)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle org.eclipse.osgi.
    at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:734)
    at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683)
    at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.resume(InternalSystemBundle.java:225)
    ... 10 more

Troubleshooting - Vert.x

@The following error occurred in the Vert.x, it included the vertx-core-1.3.1.final.jar in the Lib.
The resolution is that you should use  vertx-core-2.0.2.final.jar.
------------------------------------------------------------------------------
nested exception is java.lang.IncompatibleClassChangeError: Found interface org.vertx.java.core.VertxFactory, but class was expected