Javadoc complains about bad class file, while compile and execution work fine

FULL PRODUCT VERSION :
java version "9.0.1"
Java(TM) SE Runtime Environment (build 9.0.1+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.1+11, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Linux 4.10.0-42-generic #46-Ubuntu SMP Mon Dec 4 14:38:01 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
Compiling the example, then running javadoc throws an error:

Loading source file example/Foo.java...
Constructing Javadoc information...
Standard Doclet version 9.0.1
Building tree for all the packages and classes...
Generating ./example/Foo.html...
Generating ./example/package-frame.html...
Generating ./example/package-summary.html...
Generating ./example/package-tree.html...
Generating ./constant-values.html...
javadoc: error - An exception occurred while building a component: Contents
(com.sun.tools.javac.code.ClassFinder$BadClassFile: bad class file: ./example/Foo$1.class
  class file contains malformed variable arity method: (java.lang.Object[],example.Foo)
  Please remove or make sure it appears in the correct subdirectory of the classpath.)
Please file a bug against the javadoc tool via the Java bug reporting page
(http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com)
for duplicates. Include error messages and the following diagnostic in your report. Thank you.
com.sun.tools.javac.code.ClassFinder$BadClassFile: bad class file: ./example/Foo$1.class
  class file contains malformed variable arity method: (java.lang.Object[],example.Foo)
  Please remove or make sure it appears in the correct subdirectory of the classpath.
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.badClassFile(ClassReader.java:278)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readMethod(ClassReader.java:2402)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClass(ClassReader.java:2641)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClassBuffer(ClassReader.java:2706)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClassFile(ClassReader.java:2719)
at jdk.compiler/com.sun.tools.javac.code.ClassFinder.fillIn(ClassFinder.java:348)
at jdk.compiler/com.sun.tools.javac.code.ClassFinder.complete(ClassFinder.java:285)
at jdk.compiler/com.sun.tools.javac.code.Symbol.complete(Symbol.java:633)
at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1314)
at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.flags(Symbol.java:1248)
at jdk.compiler/com.sun.tools.javac.code.Symbol$TypeSymbol.getEnclosedElements(Symbol.java:800)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems0(Utils.java:2468)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems0(Utils.java:2463)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.recursiveGetItems(Utils.java:2451)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils$16.visitPackage(Utils.java:2436)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils$16.visitPackage(Utils.java:2432)
at jdk.compiler/com.sun.tools.javac.code.Symbol$PackageSymbol.accept(Symbol.java:1166)
at java.compiler@9.0.1/javax.lang.model.util.AbstractElementVisitor6.visit(AbstractElementVisitor6.java:106)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems(Utils.java:2445)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getClasses(Utils.java:2182)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getAllClasses(Utils.java:2355)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.ConstantsSummaryBuilder.hasConstantField(ConstantsSummaryBuilder.java:258)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.ConstantsSummaryBuilder.buildContents(ConstantsSummaryBuilder.java:171)
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.ConstantsSummaryBuilder.buildConstantSummary(ConstantsSummaryBuilder.java:156)
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.ConstantsSummaryBuilder.build(ConstantsSummaryBuilder.java:136)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.AbstractDoclet.generateOtherFiles(AbstractDoclet.java:228)
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)
1 error


REGRESSION. Last worked in version 8u152

ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_152"
Java(TM) SE Runtime Environment (build 1.8.0_152-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.152-b16, mixed mode)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create example/Foo.java:

--------
package example;

public abstract class Foo {
    abstract boolean apply(Object input);

    Foo(Object... params) {
    }

    static Foo from(final Foo other) {
        return new Foo() {
            @Override
            public boolean apply(Object input) {
                return other.apply(input);
            }
        };
    }
}
--------

Compile:
> javac example/Foo.java
Javadoc:
> javadoc example/Foo.java

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Successful creation of the Javadoc
ACTUAL -
Error:

Loading source file example/Foo.java...
Constructing Javadoc information...
Standard Doclet version 9.0.1
Building tree for all the packages and classes...
Generating ./example/Foo.html...
Generating ./example/package-frame.html...
Generating ./example/package-summary.html...
Generating ./example/package-tree.html...
Generating ./constant-values.html...
javadoc: error - An exception occurred while building a component: Contents
(com.sun.tools.javac.code.ClassFinder$BadClassFile: bad class file: ./example/Foo$1.class
  class file contains malformed variable arity method: (java.lang.Object[],example.Foo)
  Please remove or make sure it appears in the correct subdirectory of the classpath.)
Please file a bug against the javadoc tool via the Java bug reporting page
(http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com)
for duplicates. Include error messages and the following diagnostic in your report. Thank you.
com.sun.tools.javac.code.ClassFinder$BadClassFile: bad class file: ./example/Foo$1.class
  class file contains malformed variable arity method: (java.lang.Object[],example.Foo)
  Please remove or make sure it appears in the correct subdirectory of the classpath.
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.badClassFile(ClassReader.java:278)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readMethod(ClassReader.java:2402)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClass(ClassReader.java:2641)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClassBuffer(ClassReader.java:2706)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClassFile(ClassReader.java:2719)
at jdk.compiler/com.sun.tools.javac.code.ClassFinder.fillIn(ClassFinder.java:348)
at jdk.compiler/com.sun.tools.javac.code.ClassFinder.complete(ClassFinder.java:285)
at jdk.compiler/com.sun.tools.javac.code.Symbol.complete(Symbol.java:633)
at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1314)
at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.flags(Symbol.java:1248)
at jdk.compiler/com.sun.tools.javac.code.Symbol$TypeSymbol.getEnclosedElements(Symbol.java:800)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems0(Utils.java:2468)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems0(Utils.java:2463)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.recursiveGetItems(Utils.java:2451)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils$16.visitPackage(Utils.java:2436)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils$16.visitPackage(Utils.java:2432)
at jdk.compiler/com.sun.tools.javac.code.Symbol$PackageSymbol.accept(Symbol.java:1166)
at java.compiler@9.0.1/javax.lang.model.util.AbstractElementVisitor6.visit(AbstractElementVisitor6.java:106)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems(Utils.java:2445)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getClasses(Utils.java:2182)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getAllClasses(Utils.java:2355)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.ConstantsSummaryBuilder.hasConstantField(ConstantsSummaryBuilder.java:258)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.ConstantsSummaryBuilder.buildContents(ConstantsSummaryBuilder.java:171)
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.ConstantsSummaryBuilder.buildConstantSummary(ConstantsSummaryBuilder.java:156)
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.ConstantsSummaryBuilder.build(ConstantsSummaryBuilder.java:136)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.AbstractDoclet.generateOtherFiles(AbstractDoclet.java:228)
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)
1 error


ERROR MESSAGES/STACK TRACES THAT OCCUR :
Loading source file example/Foo.java...
Constructing Javadoc information...
Standard Doclet version 9.0.1
Building tree for all the packages and classes...
Generating ./example/Foo.html...
Generating ./example/package-frame.html...
Generating ./example/package-summary.html...
Generating ./example/package-tree.html...
Generating ./constant-values.html...
javadoc: error - An exception occurred while building a component: Contents
(com.sun.tools.javac.code.ClassFinder$BadClassFile: bad class file: ./example/Foo$1.class
  class file contains malformed variable arity method: (java.lang.Object[],example.Foo)
  Please remove or make sure it appears in the correct subdirectory of the classpath.)
Please file a bug against the javadoc tool via the Java bug reporting page
(http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com)
for duplicates. Include error messages and the following diagnostic in your report. Thank you.
com.sun.tools.javac.code.ClassFinder$BadClassFile: bad class file: ./example/Foo$1.class
  class file contains malformed variable arity method: (java.lang.Object[],example.Foo)
  Please remove or make sure it appears in the correct subdirectory of the classpath.
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.badClassFile(ClassReader.java:278)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readMethod(ClassReader.java:2402)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClass(ClassReader.java:2641)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClassBuffer(ClassReader.java:2706)
at jdk.compiler/com.sun.tools.javac.jvm.ClassReader.readClassFile(ClassReader.java:2719)
at jdk.compiler/com.sun.tools.javac.code.ClassFinder.fillIn(ClassFinder.java:348)
at jdk.compiler/com.sun.tools.javac.code.ClassFinder.complete(ClassFinder.java:285)
at jdk.compiler/com.sun.tools.javac.code.Symbol.complete(Symbol.java:633)
at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1314)
at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.flags(Symbol.java:1248)
at jdk.compiler/com.sun.tools.javac.code.Symbol$TypeSymbol.getEnclosedElements(Symbol.java:800)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems0(Utils.java:2468)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems0(Utils.java:2463)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.recursiveGetItems(Utils.java:2451)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils$16.visitPackage(Utils.java:2436)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils$16.visitPackage(Utils.java:2432)
at jdk.compiler/com.sun.tools.javac.code.Symbol$PackageSymbol.accept(Symbol.java:1166)
at java.compiler@9.0.1/javax.lang.model.util.AbstractElementVisitor6.visit(AbstractElementVisitor6.java:106)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getItems(Utils.java:2445)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getClasses(Utils.java:2182)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.util.Utils.getAllClasses(Utils.java:2355)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.ConstantsSummaryBuilder.hasConstantField(ConstantsSummaryBuilder.java:258)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.builders.ConstantsSummaryBuilder.buildContents(ConstantsSummaryBuilder.java:171)
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.ConstantsSummaryBuilder.buildConstantSummary(ConstantsSummaryBuilder.java:156)
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.ConstantsSummaryBuilder.build(ConstantsSummaryBuilder.java:136)
at jdk.javadoc/jdk.javadoc.internal.doclets.toolkit.AbstractDoclet.generateOtherFiles(AbstractDoclet.java:228)
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)
1 error


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
example/Foo.java
--------
package example;

public abstract class Foo {
    abstract boolean apply(Object input);

    Foo(Object... params) {
    }

    static Foo from(final Foo other) {
        return new Foo() {
            @Override
            public boolean apply(Object input) {
                return other.apply(input);
            }
        };
    }
}
--------
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Create an inner class

--------
package example;

public abstract class Foo {
    abstract boolean apply(Object input);

    Foo(Object... params) {
    }

    static Foo from(final Foo other) {
        return new MyFoo(other);
    }

    private static class MyFoo extends Foo {
        private final Foo other;

        public MyFoo(Foo other) {
            this.other = other;
        }

        @Override
        public boolean apply(Object input) {
            return other.apply(input);
        }
    }
}
--------