Infinite loop when generating template

[mthyman]

I got an infinite loop generating the Swagger template for my project.

After some time i managed to isolate the issue. If the model contains a circular dependency between classes OuputTemplate.addDataType adds the same classes over and over.

Simple example:

public class Parent {
public Child getChild() {
return new Child();
}
}

public class Child extends Parent {}

Using either the Parent or Child class as responseClass in a service will cause the problem to occur.

Partial stacktrace:

Exception in thread "main" java.lang.StackOverflowError
at java.util.regex.Pattern$Branch.match(Pattern.java:4502)
at java.util.regex.Pattern$GroupHead.match(Pattern.java:4556)
at java.util.regex.Pattern$Begin.match(Pattern.java:3472)
at java.util.regex.Matcher.search(Matcher.java:1199)
at java.util.regex.Matcher.find(Matcher.java:592)
at com.github.kongchen.swagger.docgen.TypeUtils.getTrueType(TypeUtils.java:31)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:50)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:54)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:54)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:54)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:54)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:54)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:54)
at com.github.kongchen.swagger.docgen.mustache.OutputTemplate.addDateType(OutputTemplate.java:54)

[kongchen]

Thanks for report, it was a bug now.