NullPointerException if apiSource/outputFormats is not present

[cidus]

Caught this updating from 3.1.6 to 3.1.8

Caused by: java.lang.NullPointerException
at com.github.kongchen.swagger.docgen.AbstractDocumentSource.toSwaggerDocuments (AbstractDocumentSource.java:203)
at com.github.kongchen.swagger.docgen.mavenplugin.ApiDocumentMojo.execute (ApiDocumentMojo.java:130)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)

Full stacktrace: https://pastebin.com/Yp57y2Xs

[msangel]

Thanks! You save my day!

[ricardojlrufino]

thank !

please put this in examples of readme to avoid mistakes.

[ankit--sethi]

what is the workaround?