Please consider filing a bug report here, that will be the best way to make 
sure the issue is tracked:
https://source.android.com/setup/contribute/report-bugs

On Monday, July 20, 2020 at 2:13:10 PM UTC-7, Dean Wheatley wrote:
>
> AOSP version: master
>
> Stack:
>
> javadoc: error - In doclet class com.google.doclava.Doclava,  method start 
> has thrown an exception java.lang.reflect.InvocationTargetException
> java.lang.NullPointerException
>         at 
> jdk.javadoc/com.sun.tools.javadoc.main.ExecutableMemberDocImpl.position(ExecutableMemberDocImpl.java:285)
>         at 
> com.google.doclava.Converter.convertParameters(Converter.java:291)
>         at com.google.doclava.Converter.access$700(Converter.java:48)
>         at com.google.doclava.Converter$2.make(Converter.java:467)
>         at com.google.doclava.Converter$Cache.obtain(Converter.java:736)
>         at com.google.doclava.Converter.obtainMethod(Converter.java:447)
>         at com.google.doclava.Converter.access$500(Converter.java:48)
>         at com.google.doclava.Converter$8.make(Converter.java:717)
>         at com.google.doclava.Converter$Cache.obtain(Converter.java:736)
>         at 
> com.google.doclava.Converter.obtainAnnotationInstance(Converter.java:705)
>         at 
> com.google.doclava.Converter.convertAnnotationInstances(Converter.java:698)
>         at com.google.doclava.Converter.access$800(Converter.java:48)
>         at com.google.doclava.Converter$2.make(Converter.java:498)
>         at com.google.doclava.Converter$Cache.obtain(Converter.java:736)
>         at com.google.doclava.Converter.obtainMethod(Converter.java:447)
>         at com.google.doclava.Converter.convertMethods(Converter.java:424)
>         at com.google.doclava.Converter.initClass(Converter.java:138)
>         at com.google.doclava.Converter.makeInfo(Converter.java:71)
>         at com.google.doclava.Doclava.start(Doclava.java:426)
>         at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method)
>         at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>         at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>         at 
> jdk.javadoc/com.sun.tools.javadoc.main.DocletInvoker.invoke(DocletInvoker.java:333)
>         at 
> jdk.javadoc/com.sun.tools.javadoc.main.DocletInvoker.start(DocletInvoker.java:212)
>         at 
> jdk.javadoc/com.sun.tools.javadoc.main.Start.parseAndExecute(Start.java:446)
>         at 
> jdk.javadoc/com.sun.tools.javadoc.main.Start.begin(Start.java:238)
>         at 
> jdk.javadoc/com.sun.tools.javadoc.main.Start.begin(Start.java:224)
>         at jdk.javadoc/com.sun.tools.javadoc.Main.execute(Main.java:174)
>         at 
> jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:419)
>         at 
> jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:344)
>         at jdk.javadoc/jdk.javadoc.internal.tool.Main.execute(Main.java:63)
>         at jdk.javadoc/jdk.javadoc.internal.tool.Main.main(Main.java:52)
> 1 error
>
> Steps to reproduce:
>
> $ make <droiddoc module in vendor/>
>
> droiddoc {
>     name: "com.vendor.component-api-docs",
>     custom_template: vendor_droiddoc_template,
>     srcs: [
>         ":vendor_component_source_files",
>     ],
>     libs: [vendor_module],
>     args: "-stubpackages com.vendor.component -showAnnotation 
> com.vendor.component.SuppressAutoDoc",
>     installable: false,
> }
>
>
> This error did not occur in Android 10.
>
> I have looked into the differences in the Android 10 and Android master 
> commands:
> * Android 10 uses JDK9 and master uses JDK11. Changing JDK11 to JDK9 does 
> not fix problem.
> * I reverted external/doclava to the Android 10 SHA but this did not fix 
> the issue either.
>
> There's been a lot of changes to build/soong/java/droiddoc.go between Q 
> and master.
>
> Thanks,
>
>
>

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