Today we’ll bite off another morsel from our delicious and mildly satiating Java Exception Handling series with a close look at the java.util.ConcurrentModificationException. The java.util.ConcurrentModificationException is typically thrown when code attempts to modify a data collection while that collection is actively in use, such as being iterated. We’ll take the… continue reading →

Today we continue our adventure through the Java Exception Handling series with a close look at the java.lang.NoClassDefFoundError. In most cases, a java.lang.NoClassDefFoundError is thrown when a class reference was available during compile time, but has since disappeared (for whatever reason) during execution. In this article we’ll explore the java.lang.NoClassDefFoundError… continue reading →

Today we start the journey through our Java Exception Handling series with a deep dive into the java.lang.NullPointerException. A java.lang.NullPointerException is thrown there’s an attempt to use null anywhere an object is actually required, such as trying to directly modify a null object. In this article we’ll look at where… continue reading →

All objects within the Java exception class hierarchy extend from the Throwable superclass. Only instances of Throwable (or an inherited subclass) are indirectly thrown by the Java Virtual Machine (JVM), or can be directly thrown via a throw statement. Additionally, only Throwables (or an inherited subclass) can be caught via… continue reading →