Category Archives: Troubleshoot

com.sun.mail.smtp.SMTPSendFailedException: 530 authentication required (#5.7.1)

Posted on February 5, 2008 by admin

Errors: DEBUG SMTP: use8bit false MAIL FROM:<nitingautam@……com> 530 authentication required (#5.7.1) com.sun.mail.smtp.SMTPSendFailedException: 530 authentication required (#5.7.1)     at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1333)     at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:906)     at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:535)     at javax.mail.Transport.send0(Transport.java:151)     at javax.mail.Transport.send(Transport.java:80)     at practical.Mailer.main(Mailer.java:37) QUIT com.sun.mail.smtp.SMTPSendFailedException: 530 authentication required (#5.7.1) … Continue reading →

Posted in Java, Troubleshoot | 23 Comments

Google Toolbar – Field yellow background issue in mozilla

Posted on December 30, 2007 by admin

What is the Issue? If you're a web developer you may have faced this problem at one time or another. If you haven't yet, you most likely will see it at some point. It's the mysterious yellow input fields. On … Continue reading →

Posted in Troubleshoot | 4 Comments

org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class ‘org.hsqldb.jdbcDriver’

Posted on November 3, 2007 by nitingautam

Problem  org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.hsqldb.jdbcDriver'     at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:766)     at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)     at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:81)     at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84)     at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009)     at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)     at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:805)     at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:745)     at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:134)     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1143)     at … Continue reading →

Posted in Troubleshoot | 1 Comment

Ant within Eclipse: switching JDKs and finding tools.jar – com.sun.tools.javac.Main is not on the classpath.

Posted on October 11, 2007 by nitingautam

I've been doing quite a lot of work creating new Ant build processes and grokking Eclipse (installing and reinstalling on different machines), and this is a problem that keeps recurring. This morning I cleaned up vast amounts of garbage on … Continue reading →

Posted in Troubleshoot | 4 Comments

SEVERE: Error reading tld listeners java.lang.NullPointerException

Posted on October 4, 2007 by admin

SEVERE: Error reading tld listeners java.lang.NullPointerException, the error appears to come from log4j. I came across this error when reloading a context in Tomcat 5.5.23. The solution appeared to be to remove commons-logging from WEB-INF/lib of my web app. I’d … Continue reading →

Posted in Articles, Troubleshoot | 1 Comment