I add a dependency in my eclipse maven project pom.xml file, and when I save the project, eclipse downloads all the dependency required jar files under the eclipse project —> Maven Dependencies folder. But when expand the Maven Dependencies folder I found all the dependency required jar files are grayed out. And the class in …
How To Fix Issue Eclipse Maven Dependencies Jar Files Grayed Out Read More »
Recently I installed some eclipse plugins and after that my eclipse is crashed. When I restart the eclipse again, it shows a popup dialog with the error message An error has occurred. See the log file C:\Users\zhaosong\eclipse-workspace\.metadata\.log. This article will tell you how to fix this error.
Oracle cloud provide an always free service for virtual machine, database and network creation & usage. It is a very good news because of free usage. This article will tell you how to register oracle always free cloud account and how to create virtual machine instance in it, it also tell you how to setup …
This article will tell you how to install/uninstall multiple java versions on mac os both use homebrew or manually. It also shows you how to set JAVA_HOME & PATH system environment variable to make your installed JDK as the default JDK. We recommend you to use homebrew because it provides a lot of easy-to-use tools.
Apache James is a popular open source mail server. It support both SMTP, POP3 and IMAP protocol. This article will tell you how to install Apache James both on Windows and Linux, how to create user account on it and how to use free email client tool Thunderbird to connect to it to send and …
How To Connect Localhost Apache James With Thunderbird Read More »
In my recent spring boot example project, i use spring boot data JPA to operate MySQL server table. And when i invoke the CrudRepository’s save method to implement insert action to the table, it shows below error, the error message is “table ‘dev2qa_example.hibernate_sequence’ doesn’t exist”. This error cost me some time to fix, and i …
Resolve Spring Boot JPA Table ‘dbname.hibernate_sequence’ Doesn’t Exist Error Read More »
