We experience this issue at the time of running the AEM jar file. Everything is fine or even using a valid command we are unable to start the AEM service then look and follow.Error:
java -jar aem-sdk-quickstart-author-p4502.jar -debug 30303
Loading quickstart properties: default
Loading quickstart properties: instance
Low-memory action set to fork
Using 64bit VM settings, min.heap=1024MB, min permgen=256MB, default fork arguments=[-Xmx1024m, -XX:MaxPermSize=256m]
The JVM reports a heap size of 4014 MB, meets our expectation of 1024 MB +/- 20
Debugging requested on port 30303, forcing fork
Preparing to fork JVM, OS name=Windows 10, isWindows=true
Forking JVM: [C:\Program Files\Java\jdk-11.0.15\bin\java.exe, -agentlib:jdwp=transport=dt_socket,address=30303,server=y,suspend=n, -Xmx1024m, -XX:MaxPermSize=256m, -jar, C:/Users/mohammad_r/Downloads/aem-sdk/aem-sdk-quickstart-author-p4502.jar, -nofork, -pt, CHILD]
Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
Listening for transport dt_socket at address: 30303
Loading quickstart properties: default
Loading quickstart properties: instance
Low-memory action set to fork
Using 64bit VM settings, min.heap=1024MB, min permgen=256MB, default fork arguments=[-Xmx1024m, -XX:MaxPermSize=256m]
The JVM reports a heap size of 1024 MB, meets our expectation of 1024 MB +/- 20
Setting properties from filename 'C:/Users/jorvee/Downloads/aem-sdk/aem-sdk-quickstart-author-p4502.jar'
Option '-quickstart.server.port' set to '4502' from filename aem-sdk-quickstart-author-p4502.jar
Verbose option not active, closing stdin and redirecting stdout and stderr
Redirecting stdout to C:\Users\jorvee\Downloads\aem-sdk\crx-quickstart\logs\stdout.log
Redirecting stderr to C:\Users\jorvee\Downloads\aem-sdk\crx-quickstart\logs\stderr.log
Forked JVM process exited with exit code 1
Main JVM process exiting
MAIN process: shutdown hook
MAIN process: exiting
Log file stderr
Low-memory action set to fork
Using 64bit VM settings, min.heap=1024MB, min permgen=256MB, default fork arguments=[-Xmx1024m, -XX:MaxPermSize=256m]
The JVM reports a heap size of 1024 MB, meets our expectation of 1024 MB +/- 20
Setting properties from filename 'C:/Users/mohammad_r/Downloads/aem-sdk/aem-sdk-quickstart-author-p4502.jar'
Option '-quickstart.server.port' set to '4502' from filename aem-sdk-quickstart-author-p4502.jar
Verbose option not active, closing stdin and redirecting stdout and stderr
Redirecting stdout to C:\Users\jorvee\Downloads\aem-sdk\crx-quickstart\logs\stdout.log
Redirecting stderr to C:\Users\jorvee\Downloads\aem-sdk\crx-quickstart\logs\stderr.log
ResourceProvider paths=[/gui, /gui/default]
java.io.IOException: Did not find an available server port, tried 4502
at com.adobe.granite.quickstart.base.impl.exec.PortSelector.selectPort(PortSelector.java:74)
at com.adobe.granite.quickstart.base.impl.Quickstart.<init>(Quickstart.java:147)
at com.adobe.granite.quickstart.base.impl.Main.<init>(Main.java:911)
at com.adobe.granite.quickstart.base.impl.Main.main(Main.java:980)
Quickstart: aborting
CHILD process: shutdown hook
CHILD process: exiting
Resolution
Port 4502 is not available and is being consumed by any other service.