Debugging helps find and fix bugs, analyze code, add logging, and change behavior on the fly.
The JPDA consists of the Java Debug Interface (JDI), the Java Debug Wire Protocol (JDWP), and the JVM Tool Interface (JVMTI) to connect an IDE to a JVM.
Use remote debugging to connect to any JVM and leverage on-demand features like starting a debug session when a specific exception is thrown.
The JDWP facilitates communication between the debugger and the JVM through a series of requests, events, and replies to manage state and execution.
Since the JVM lacks native support, IDEs emulate conditional breakpoints by suspending the thread at every hit and evaluating the condition on the client side.
Improve performance by embedding complex conditions in the code or a separate method, and be aware that setting any breakpoint de-optimizes the method.
Features like HotSwap, setting values, and forcing returns are implemented using specific JDWP commands that directly instruct the JVM to modify its state.
A summary of debugging best practices is followed by a Q&A session covering topics like cross-language debugging and future trends like Project Loom.
tree-IT GmbH
Bad Neustadt an der Saale, Germany
50:10Aicha Laafia
55:30Christian Woerz
57:45Jonathan Vila
45:30Michael Inden
37:45Daniel Strmečki
1:11:05Mohamed Taman
56:49Jens Happe
57:55Jakov Semenski
Jobs that call for the skills explored in this talk.
DIS AG
Dresden, Germany
