CODEWITHSUNDEEP
springspring-bootspring-mvc
Vishal
Vishal

Reputation: 1414

Print Statement is getting executed twice which is present before run method invoke in Spring boot

Print Statement is getting executed twice which is present before run method invoke in Spring boot

After run method invoke, one more print statement is present which is getting executed once as expected.

enter image description here

It seems that control is hitting the main method twice but why not later one print statement is getting executed twice.

Note - I have dev-tools configure in pom.xml

Could someone help me to understand the flow behind that use case.

Thank you.

Upvotes: 1

Views: 423

Answers (1)

Martin Theiss
Martin Theiss

Reputation: 1010

This behaviour is normal, if you have DevTools on your classpath. If you look at the Stack, you will see, that the second execution is under the hood of the RestartLauncher.

---------------- START ----------------
java.lang.Exception
    at de.solitics.overwatch.app.OverwatchApplication.main(OverwatchApplication.java:37)
---------------- START ----------------
java.lang.Exception
    at de.solitics.overwatch.app.OverwatchApplication.main(OverwatchApplication.java:37)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)

Upvotes: 2

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