Using JDK 11 to develop apps with the Atlassian SDK is not yet supported
Platform notice: Server and Data Center only. This article only applies to Atlassian products on the server and data center platforms.
Summary
Using JDK 11 with the Atlassian SDK is not yet supported - see - AMPS-1541Getting issue details... STATUS
Environment
Atlassian SDK <= 8.2 ( as of this article, see bug report for eventual version supporting JDK 11 )
.
Diagnosis
Attempting to compile with the Atlassian SDK and JDK 11 results in the following:
$ rm -rf target && atlas-package
[INFO] Project POM found
Executing:
/Applications/Atlassian/atlassian-plugin-sdk-8.2.6/apache-maven-3.5.4/bin/mvn
package -gs
/Applications/Atlassian/atlassian-plugin-sdk-8.2.6/apache-maven-3.5.4/conf/settings.xml
Exception in thread "main" java.lang.NullPointerException
at java.base/java.io.Reader.<init>(Reader.java:167)
at java.base/java.io.InputStreamReader.<init>(InputStreamReader.java:72)
at org.twdata.maven.trap.Dispatcher.getInterceptorsResourceBufferedReader(Dispatcher.java:67)
at org.twdata.maven.trap.Dispatcher.getMavenInterceptors(Dispatcher.java:45)
at org.twdata.maven.trap.Dispatcher.main(Dispatcher.java:21)
at org.twdata.maven.trap.App.main(App.java:18)
Solution
Continue using JDK 8 to compile. The resulting app should work in JDK 11 without issue