FULL PRODUCT VERSION :


ADDITIONAL OS VERSION INFORMATION :
Linux 2.6.32-696.20.1.el6.x86_64 #1 SMP Fri Jan 12 15:07:59 EST 2018 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
javadoc: error - An exception occurred while building a component: MethodSubHeader
(java.lang.NullPointerException)
Please file a bug against the javadoc tool via the Java bug reporting page
(http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com)
for duplicates. Include error messages and the following diagnostic in your report. Thank you.
java.lang.NullPointerException
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getLineNumber(Utils.java:2272)
at jdk.javadoc/jdk.javadoc.internal.doclets.formats.html.SourceToHTMLConverter.getAnchorName(SourceToHTMLConverter.java:310)
at jdk.javadoc/jdk.javadoc.internal.doclets.formats.html.HtmlDocletWriter.addSrcLink(HtmlDocletWriter.java:1178)
at jdk.javadoc/jdk.javadoc.internal.doclets.formats.html.MethodWriterImpl.getSignature(MethodWriterImpl.java:151)
at jdk.javadoc/jdk.javadoc.internal.doclets.formats.html.HtmlSerialMethodWriter.addMemberHeader(HtmlSerialMethodWriter.java:124)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.buildMethodSubHeader(SerializedFormBuilder.java:323)
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:564)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:157)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.buildChildren(AbstractBuilder.java:200)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.buildSerializableMethods(SerializedFormBuilder.java:296)
at jdk.internal.reflect.GeneratedMethodAccessor88.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:157)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.buildChildren(AbstractBuilder.java:200)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.buildClassContent(SerializedFormBuilder.java:276)
at jdk.internal.reflect.GeneratedMethodAccessor87.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:157)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.buildChildren(AbstractBuilder.java:200)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.buildClassSerializedForm(SerializedFormBuilder.java:240)
at jdk.internal.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:157)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.buildChildren(AbstractBuilder.java:200)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.buildPackageSerializedForm(SerializedFormBuilder.java:205)
at jdk.internal.reflect.GeneratedMethodAccessor91.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:157)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.buildChildren(AbstractBuilder.java:200)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.buildSerializedFormSummaries(SerializedFormBuilder.java:180)
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:564)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:157)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.buildChildren(AbstractBuilder.java:200)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.buildSerializedForm(SerializedFormBuilder.java:163)
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:564)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:157)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.SerializedFormBuilder.build(SerializedFormBuilder.java:142)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.AbstractDoclet.generateOtherFiles(AbstractDoclet.java:230)
at jdk.javadoc/jdk.javadoc.internal.doclets.formats.html.HtmlDoclet.generateOtherFiles(HtmlDoclet.java:116)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.AbstractDoclet.startGeneration(AbstractDoclet.java:213)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.AbstractDoclet.run(AbstractDoclet.java:117)
at jdk.javadoc/jdk.javadoc.doclet.StandardDoclet.run(StandardDoclet.java:72)
at jdk.javadoc/jdk.javadoc.internal.tool.Start.parseAndExecute(Start.java:574)
at jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:423)
at jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:340)
at jdk.javadoc/jdk.javadoc.internal.tool.Main.execute(Main.java:63)
at jdk.javadoc/jdk.javadoc.internal.tool.Main.main(Main.java:52)

REGRESSION. Last worked in version 8u162


REPRODUCIBILITY :
This bug can be reproduced always.