Debugging with jdb: transport err 202 get addrinfo

Asked Mar 09 '19 at 23:36

Active Mar 09 '19 at 23:36

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I'm to use the Java debugger in the terminal for Mac, and it seems to let me use it randomly. Sometimes it works, but other times it gives me this message: run run Lab5 commands1.txt VM start exception: VM initialization failed for: /Library/Java/JavaVirtualMachines/jdk-11.0.2.jdk/Contents/Home/bin/java -Xdebug -Xrunjdwp:transport=dt_socket,address=Uzomas-MacBook-Air.local:49188,suspend=y Lab5 commands1.txt

ERROR: transport error 202: getaddrinfo: unknown host ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510) JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [:732]

I've researched solutions for this but never understood how to implement them, and I don't have enough reputation to comment so this is my only way

asked Mar 09 '19 at 23:36

Uzoma Ohajekwe

Check [this answer](https://stackoverflow.com/a/50372800/2834978). – LMC Mar 11 '19 at 00:52
Possible duplicate of [Java JDB: ERROR: transport error 202: gethostbyname: unknown host](https://stackoverflow.com/questions/50344957/java-jdb-error-transport-error-202-gethostbyname-unknown-host) – LMC Mar 11 '19 at 00:53
I'm wondering how you actually do the solution? – Uzoma Ohajekwe Mar 12 '19 at 15:26
It's explained in [this answer](https://stackoverflow.com/a/50372800/2834978). – LMC Mar 12 '19 at 17:36
Yes, but how do you actually "Add the hostname mapping on hosts file keeping other names configured for that IP"? Do you simply type the statement below to the terminal, or is their something else you have to do? – Uzoma Ohajekwe Mar 19 '19 at 01:27
You have to edit `/etc/hosts` file and add the mapping there. It's more related to OS administration (networking) than programming, that's why I didn't added the complete explanation. – LMC Mar 19 '19 at 01:54
How would you go about completing the second solution? – Uzoma Ohajekwe Mar 21 '19 at 03:36
Depends on how you launch the jvm. Look at your IDE configuration for that. – LMC Mar 21 '19 at 14:04
Are you familiar with Intellij? – Uzoma Ohajekwe Mar 21 '19 at 19:17
Never used it, sorry. – LMC Mar 22 '19 at 13:26

Debugging with jdb: transport err 202 get addrinfo

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