Using JDK 11 to develop apps with the Atlassian SDK is not yet supported
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Using JDK 11 with the Atlassian SDK is not yet supported - AMPS-1541.
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:
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$ 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
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