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Last active October 17, 2023 14:30
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How to monitor http/https traffic in JVM #jvm #java #http #https #intellij
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README.md

How to monitor http/https traffic in JVM

Download Fiddler

Download Fiddler - the Free Web Debugging Proxy

JVM (VM) settings

-DproxySet=true -DproxyHost=127.0.0.1 
-DproxyPort=8888 
-Djavax.net.ssl.trustStore="C:\Windows\System32\FiddlerKeystore" 
-Djavax.net.ssl.trustStorePassword="YourFiddlerKeyStorePassword"

Generate Fiddler certificate

  • Check to Tools > Options > HTTPS > Decrypt HTTPS traffic
  • Go to http://127.0.0.1:8888/ and download FiddlerRoot Certificate

Create a JVM keystore, using the certificate

  • Run `"C:\Program Files\Java\jdk1.8.0_144\bin\keytool.exe" -import -file "C:\Users\YourUserName\Desktop\FiddlerRoot.cer" -keystore FiddlerKeystore -alias Fiddler
  • Provide a password
  • Keystore will be generated in C:\Windows\System32\FiddlerKeystore

Enable JVM proxy and provide keystore using the configuration above

  • In IntelliJ Idea: Run/Debug Configurations > VM options
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