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People who work with Hibernate often want to see, what SQL it is prepairing behind the seen and how it is mapping in real for debug purpose. We can achieve this by enable log4j for Hibernate classes. This will give a detailed debug info.

If using log4j.properties, enter the below line at end:

### log JDBC bind parameters ###
log4j.logger.net.sf.hibernate.type=debug

### log prepared statement cache activity ###
log4j.logger.net.sf.hibernate.ps.PreparedStatementCache=debug

If using log4j XML file, enter below line before <root>:

<logger name="org.hibernate">
    <level value="debug"/>
</logger>

<logger name="org.hibernate.SQL">
    <level value="debug"/>
</logger>

<logger name="org.hibernate.type">
    <level value="debug"/>
</logger>

Happy Coding

Hi,

From past few days I and my few team members were getting the following error during LDAP authentication:

javax.net.ssl.SSLException: Algorithm missing:  
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.f(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_ax.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_az.j(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_az.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_az.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_ax.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.j(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(DashoA12275)
    at com.xx.cat.fndt.auth.impl.ssl.TrustingSSLSocketFactory.getSSLSocket(TrustingSSLSocketFactory.java:147)
    at com.xx.cat.fndt.auth.impl.ssl.TrustingSSLSocketFactory.makeSocket(TrustingSSLSocketFactory.java:209)
    at netscape.ldap.LDAPConnSetupMgr.connectServer(LDAPConnSetupMgr.java:411)
    at netscape.ldap.LDAPConnSetupMgr.openSerial(LDAPConnSetupMgr.java:343)
    at netscape.ldap.LDAPConnSetupMgr.connect(LDAPConnSetupMgr.java:237)
    at netscape.ldap.LDAPConnSetupMgr.openConnection(LDAPConnSetupMgr.java:163)
    at netscape.ldap.LDAPConnection.connect(LDAPConnection.java:1033)
    at netscape.ldap.LDAPConnection.connect(LDAPConnection.java:915)
    at netscape.ldap.LDAPConnection.connect(LDAPConnection.java:759)
    at com.xx.cat.fndt.auth.impl.ldap.LDAPAuthenticationInterface.getConnection(LDAPAuthenticationInterface.java:309)
    at com.xx.cat.fndt.auth.impl.ldap.LDAPAuthenticationInterface.getAuthenticatedConnection(LDAPAuthenticationInterface.java:248)
    at com.xx.cat.fndt.auth.impl.ldap.LDAPAuthenticationInterface.authenticate(LDAPAuthenticationInterface.java:69)
    at com.xx.qoc.svc.qoms.model.service.AdminManagerImpl.authenticateUser(AdminManagerImpl.java:71)
    at com.xx.qoc.svc.qoms.controller.QomsLogn010InptController.onSubmit(QomsLogn010InptController.java:208)
    at org.springframework.web.servlet.mvc.SimpleFormController.processFormSubmission(SimpleFormController.java:267)
    at org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:250)
    at com.xx.qoc.svc.qoms.controller.QomsLogn010InptController.handleRequestInternal(QomsLogn010InptController.java:160)
    at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
    at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:857)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:792)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:475)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:440)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at com.xx.qoc.fndt.filter.BlackoutFilter.doFilter(BlackoutFilter.java:257)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at com.xx.qoc.fndt.filter.PropertiesFilter.doFilter(PropertiesFilter.java:178)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at com.xx.qoc.fndt.filter.LoggingFilter.doFilter(LoggingFilter.java:152)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at com.xx.qoc.fndt.filter.RequestHeadersFilter.doFilter(RequestHeadersFilter.java:104)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at com.xx.qoc.fndt.filter.ExceptionHandlerFilter.doFilter(ExceptionHandlerFilter.java:105)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    at java.lang.Thread.run(Thread.java:534)
Caused by: java.security.NoSuchAlgorithmException: Could not create cipher AES/128
    at com.sun.net.ssl.internal.ssl.CipherBox$JCECipherBox.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_h.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.CipherSuite$BulkCipher.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_ax.c(DashoA12275)
    … 63 more
Caused by: java.security.NoSuchAlgorithmException: No implementation for AES/CBC/NoPadding found
    at com.sun.net.ssl.internal.ssl.SunJSSE_i.d(DashoA12275)
    at com.sun.net.ssl.internal.ssl.SunJSSE_i.a(DashoA12275)
    at com.sun.net.ssl.internal.ssl.CipherBox$JCECipherBox.<init>(DashoA12275)
    … 67 more

I checked the java.security and found that all the providers are registered correctly:
security.provider.1=sun.security.provider.Sun
security.provider.2=com.sun.net.ssl.internal.ssl.Provider
security.provider.3=com.sun.rsajca.Provider
security.provider.4=com.sun.crypto.provider.SunJCE
security.provider.5=sun.security.jgss.SunProvider

I did some analysis, when i run the code from a windows batch file, it works but if i run it within Eclipse, it throws this Algorithm not found exception. i checked the JVM version and classpath and it looks okay.

I make a little program to find out whether all the providers are available during runtime or not
 Provider[] provs = Security.getProviders();

In result I get only one privider and all other were missing. The jar was not getting loaded in eclipse tomcat during runtime.

For solution, I added following three jar files in tomcat boot classpath and it worked form me and my team members

-rt.jar
-jsse.jar
-jce.jar

Some time the need arises to have our log4j.properties with different name. By default, if no other configuration is given, log4j will search your classpath for a 'log4j.properties' file.

Now to use your own named log4j property add the following line in your main program:

  PropertyConfigurator.configure("File  name with path")

exmaple:

 PropertyConfigurator.configure("c:\\logs\\my-log4j.properties")   this will set this as a default property name and all done =)

While running HSQLDB in standalone mode you may face the error

  java.sql.SQLException: User not found: SA

This is because while creating the DB using script file you are not creating the user

CREATE USER SA PASSWORD ""

The above command you have to include in your db.script file db is your database name) this will creates a user by name SA with blank password.

Few days back I purchased a New E71. I face a weired issue with the phone when ever I connect to PC Suite via USB and after work  disconnects it from USB
It stop reading Memory card. After restart the phone it again start reading it , in gallery it says corrupt library repairing.

I saw many forums and read many articles about this issue and people suggested following solutions:
-try reset by *#7370#
-hard reset '*' '3' 'Call Key' and Power button
-Replace simm card
-Format memory card
-Replace memory card  etc

But nothing of the above method seems to me working for me.

I noticed whenever after closing PC Suite, I try to disconnect it using USB "Safely Remove Hardware" Option in taskbar, it says "The device '…..Nokia…..' cannot be stopped right now. Try stopping the device again later." Then I saw in the task list there are following services are running:
NclUSBSrv.exe
NclRSSrv.exe
MclMSBTSrv.exe

All of the above services are related to E71 Nokia PC Suite .
Now I have end task the NclUSBSrv.exe service after that I again tried removing USB using "Safely Remove Hardware" Option. And this time it works Perfectly.

My issue got resolved

Suggestion: Always connect in PC Suite Mode

2/7/2009 Updates - Update to latest PC Suite  this will also resolve the issue. No need to kill the services

Today while running following  JSP

I was hitting a error 

org.apache.jasper.JasperException: Failed to load or instantiate TagLibraryValidator class: org.apache.taglibs.standard.tlv.JstlCoreTLV 

I checked my classpath and found that standard.jar was missing in my WEB-INF/lib.

I added the same and all set..it works fine

SQL0407N Assignment of a NULL value to a NOT NULL column name is not allowed.

If you encounter this error and If the value for name is of the form “TBSPACEID=n1, TABLEID=n2, COLNO=n3”, you can determine the table name and column name using the following query:

SELECT C.TABSCHEMA,

C.TABNAME, C.COLNAME FROM SYSCAT.TABLES AS T,

SYSCAT.COLUMNS AS C WHERE

T.TBSPACEID = 2 AND  T.TABLEID = 26 AND  C.COLNO = 0 AND

C.TABSCHEMA = T.TABSCHEMA AND  C.TABNAME = T.TABNAME

Today I was running a Shell Script on linux server that I uploaded from windows OS to Solaris machine.When I initiated that script I get ": bad interpreter: No such file or directory" error on the command line.

Some History behind this issue will make you understand this clearlly :-

Text files are often incompatible across operating systems. Why? Because each operating systems use different markers to indicate the end of a line. This will really create a big mess you up if you are trying to transfer files from one operating system to another.

The carriage return is often referred to by the capital letters CR. On a Macintosh, every line has a CR (^M - 13) at the end.

Under Linux (a variant of Unix), the end of a line is indicated by a line feed. Every line ends with a line feed or LF (^J - 10).

These are 2 characters with 2 very separate numeric representations on a computer. A CR is a 13 in the ASCII table of characters and an LF is a 10 in the ASCII table of characters.

Contributing to the confusion is that fact that Microsoft Windows does things yet another way. Under Microsoft Windows, lines end with a combination of 2 characters — a CR followed by a LF. Symbolically, this is represented as CRLF or carriage return, line feed.

Solution:
I am having ultraedit editor. In this editor when ever you open any file in the status bar it shouws you its type (DOS/MAC/UNIX)
if you  want to convert a file from DOS to UNIX

File > Conversions > DOS to UNIX

And if you want to make each file bydefault to DOS/MAC/UNIX  Advanced > Configuration > General Tab inside Editing go to "Default file types for new file" and select desired default type.

You can also refer Ultraedit FAQs http://www.ultraedit.com/support/faq.html

OR

Just create a new file inside UNIX and copy paste your DOS type content. When you save it, it will be converted to UNIX.

XSS (Cross-site Scripting) is one of the most common vulnerabilities with a web-application. And, it can be exploited by hackers very easily without using any sophisticated tool.

How does it work?
Most web-applications have forms (text-box etc.) to receive input-data from user. So, a web-application may have a input-text-field to get 'user-id'. The hacker may enter anything in it including "JavaScript". If the hacker enters JavaScript (a malicious code), the server may process it, and then return it. In this case, user-id is not authenticated and it is sent as it is on the error page.

If the user's input data is returned as it is, the java-script code may execute. And, hacker wins!!

I am posting solution for Spring… 

In Spring-MVC, form-tags are used to create jsp page. Spring MVC provides multiple options to encode the html-escape-sequences on server side.

• At global level, it can be defined in web.xml file. This will be applicable to entire application. All form-tags would refer to this definition. The sample code is shown below:

         <context-param>
            <param-name>defaultHtmlEscape</param-name>
            <param-value>true</param-value>
        </context-param>

• At page level, it is defined as a tag-declaration. The code is:

          Any form-tag, after the above declaration uses html-escape-sequence-encoding.

          <spring:htmlEscape defaultHtmlEscape="true" />

• Third option is to define it as attribute for each form-tag. For example, a input-text can be defined as :

          <form:input path="name" htmlEscape="true" />

           Depending upon requirement, it can be implemented as global, page or tag level.

I hope this information helps. Please do post your comments

Hi All, 

As you all know In web application inside web directory there is a META-INF directory. Inside which we have MANIFEST.MF that holds version information. I have to read the MANIFEST.MF from this directrory. Need the manifest info for the purpose of build info and have to show in footer of each page. It's easy to read it in case of JAR file and while searching on net I got mostly examples on jar,classpath related Manifest. But my requirement was to read web/META-INF/MANIFEST.MF file.

So I am posting here what I done:

Inside web application then using the ServletContext.getResourceAsStream
method should work and same I used.

// for a Servlet, you can get the ServletContext like this

 ServletContext aContext = getServletConfig().getServletContext();

 InputStream inputStream = aContext.getResourceAsStream("/META-INF/MANIFEST.MF");

In Spring application do following inside controller:

//Build Info
ServletContext aContext= getServletContext();
InputStream fis =aContext.getResourceAsStream("/META-INF/MANIFEST.MF");

Hope this helps you . Do post your comments