If you face following exception while deploying your application in tomcat:org.apache.catalina.lifecycleexception: failed to start component [standardengine [catalina].standardhost ...

Since using Spring Batch 5.0, I have an issue when running my app (ToolnameApplication). I can't find out why because I didn't used any of BatchConfigurer methods. Here's the error: ...

Could not find or load main class com.android.sdklib.tool.sdkmanager.SdkManagerCli SdkManager is part of the Android development tools. I don't know why this would not be found. Two things to check: ...

Don't let the occurrence of a RuntimeException in Java bring your code to a standstill. Here are 10 examples of how to avoid runtime exceptions in Java.

Here's a quick look at the three types of class loaders and everything you need to know to work with them in your Java programs.