What are Java command line options to set to allow JVM to be remotely debugged

Question

I know there s some JAVA OPTS to set to remotely debug a Java program   What are they and what do they mean

User · Accepted Answer

I have this article bookmarked on setting this up for Java 5 and below.

-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1044

For Java 5 and above, run it with:

-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=1044

User · Answer

Before Java 5 0  use -Xdebug and -Xrunjdwp arguments  These options will still work in later versions  but it will run in interpreted mode instead of JIT  which will be slower   From Java 5 0  it is better to use the -agentlib jdwp single option   -agentlib jdwp transport dt socket server y suspend n address 1044   Options on -Xrunjdwp or agentlib jdwp arguments are     transport dt socket   means the way used to connect to JVM  socket is a good choice  it can be used to debug a distant computer  address 8000   TCP IP port exposed  to connect from the debugger   suspend y   if  y   tell the JVM to wait until debugger is attached to begin execution  otherwise  if  n    starts execution right away

User · Answer

-agentlib jdwp transport dt socket server y suspend y address PORT NUMBER   Here we just use a Socket Attaching Connector  which is enabled by default when the dt socket transport is configured and the VM is running in the server debugging mode   For more details u can refer to   https   stackify com java-remote-debugging

User · Answer

java  java -Xdebug -Xrunjdwp transport dt socket server y address 8001 suspend y -jar target cxf-boot-simple-0 0 1-SNAPSHOT jar   address specifies the port at which it will allow to debug  Maven    Debug Spring Boot app with Maven   mvn spring-boot run -Drun jvmArguments    -Xdebug -Xrunjdwp transport dt socket server y suspend y address 8001

User · Answer

Before Java 5 0  use -Xdebug and -Xrunjdwp arguments  These options will still work in later versions  but it will run in interpreted mode instead of JIT  which will be slower   From Java 5 0  it is better to use the -agentlib jdwp single option   -agentlib jdwp transport dt socket server y suspend n address 1044   Options on -Xrunjdwp or agentlib jdwp arguments are     transport dt socket   means the way used to connect to JVM  socket is a good choice  it can be used to debug a distant computer  address 8000   TCP IP port exposed  to connect from the debugger   suspend y   if  y   tell the JVM to wait until debugger is attached to begin execution  otherwise  if  n    starts execution right away

User · Answer

Here is the easiest solution   There are a lot of environment special configurations needed if you are using Maven  So  if you start your program from maven  just run the mvnDebug command instead of mvn  it will take care of starting your app with remote debugging configurated  Now you can just attach a debugger on port 8000    It ll take care of all the environment problems for you

User · Answer

Since Java 9 0 JDWP supports only local connections by default  http   www oracle com technetwork java javase 9-notes-3745703 html JDK-8041435  For remote debugging one should run program with    in address   -agentlib jdwp transport dt socket server y suspend n address   8000

User · Answer

For java 1 5 or greater    java -agentlib jdwp transport dt socket server y suspend n address 5005  lt YourAppName gt    For java 1 4   java -Xdebug -Xrunjdwp transport dt socket server y suspend n address 5005  lt YourAppName gt    For java 1 3    java -Xnoagent -Djava compiler NONE -Xdebug -Xrunjdwp transport dt socket server y suspend n address 5005  lt YourAppName gt    Here is output from a simple program   java -Xdebug -Xrunjdwp transport dt socket server y suspend n address 1044 HelloWhirled Listening for transport dt socket at address  1044 Hello whirled

User · Answer

Command Line  -Xdebug -Xrunjdwp transport dt socket server y suspend n address PORT NUMBER   Gradle  gradle bootrun --debug-jvm   Maven  mvn spring-boot run -Drun jvmArguments  -Xdebug -Xrunjdwp transport dt socket server y suspend y address PORT NUMBER

[java] What are Java command line options to set to allow JVM to be remotely debugged?

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