[HADOOP-15574] Suppress build error if there are no docs after excluding private annotations

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.0, 3.1.1
• Target Version/s: 3.2.0, 3.1.1
• Hadoop Flags: Reviewed
• Assignee: Takanobu Asanuma
• Reporter: Takanobu Asanuma
• Created: 28/Jun/18 10:51
• Updated: 02/Jul/18 00:58
• Resolved: 01/Jul/18 11:48

Description

Seen in hadoop-ozone when building with the Maven hdds profile enabled.

$ mvn clean install -DskipTests -DskipShade -Phdds -Pdist --projects hadoop-ozone/ozonefs
...
[INFO] --- maven-javadoc-plugin:3.0.0-M1:jar (module-javadocs) @ hadoop-ozone-filesystem ---
[INFO]
ExcludePrivateAnnotationsStandardDoclet
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 13.223 s
[INFO] Finished at: 2018-06-28T19:46:49+09:00
[INFO] Final Memory: 122M/1196M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:3.0.0-M1:jar (module-javadocs) on project hadoop-ozone-filesystem: MavenReportException: Error while generating Javadoc:
[ERROR] Exit code: 1 - Picked up _JAVA_OPTIONS: -Duser.language=en
[ERROR] java.lang.ArrayIndexOutOfBoundsException: 0
[ERROR] 	at com.sun.tools.doclets.formats.html.ConfigurationImpl.setTopFile(ConfigurationImpl.java:537)
[ERROR] 	at com.sun.tools.doclets.formats.html.ConfigurationImpl.setSpecificDocletOptions(ConfigurationImpl.java:309)
[ERROR] 	at com.sun.tools.doclets.internal.toolkit.Configuration.setOptions(Configuration.java:560)
[ERROR] 	at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.startGeneration(AbstractDoclet.java:134)
[ERROR] 	at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.start(AbstractDoclet.java:82)
[ERROR] 	at com.sun.tools.doclets.formats.html.HtmlDoclet.start(HtmlDoclet.java:80)
[ERROR] 	at com.sun.tools.doclets.standard.Standard.start(Standard.java:39)
[ERROR] 	at org.apache.hadoop.classification.tools.ExcludePrivateAnnotationsStandardDoclet.start(ExcludePrivateAnnotationsStandardDoclet.java:41)
[ERROR] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR] 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[ERROR] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[ERROR] 	at java.lang.reflect.Method.invoke(Method.java:498)
[ERROR] 	at com.sun.tools.javadoc.DocletInvoker.invoke(DocletInvoker.java:310)
[ERROR] 	at com.sun.tools.javadoc.DocletInvoker.start(DocletInvoker.java:189)
[ERROR] 	at com.sun.tools.javadoc.Start.parseAndExecute(Start.java:366)
[ERROR] 	at com.sun.tools.javadoc.Start.begin(Start.java:219)
[ERROR] 	at com.sun.tools.javadoc.Start.begin(Start.java:205)
[ERROR] 	at com.sun.tools.javadoc.Main.execute(Main.java:64)
[ERROR] 	at com.sun.tools.javadoc.Main.main(Main.java:54)