public class T extends Throwable {}
javadoc -d . T.java
Everything seems to be generated, but get this exception:

f:\ws\pit\12_10_03\javadoc>javadoc -d . T.java
Loading source file T.java...
Constructing Javadoc information...
Standard Doclet version 1.5.0-auto-tiger
Building tree for all the packages and classes...
Generating .\T.html...
Generating .\package-frame.html...
Generating .\package-summary.html...
Generating .\package-tree.html...
Generating .\constant-values.html...
Generating .\serialized-form.html...
java.lang.ClassCastException: com.sun.tools.doclets.formats.html.SerializedFormWriterImpl
        at com.sun.tools.doclets.formats.html.TagletWriterImpl.seeTagOutput(TagletWriterImpl.java:145)
        at com.sun.tools.doclets.internal.toolkit.taglets.SeeTaglet.getTagletOutput(SeeTaglet.java:54)
        at com.sun.tools.doclets.internal.toolkit.taglets.TagletWriter.genTagOuput(TagletWriter.java:167)
        at com.sun.tools.doclets.formats.html.HtmlSerialFieldWriter.writeMemberTags(HtmlSerialFieldWriter.java:138)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.buildFieldInfo(SerializedFormBuilder.ja
va:446)
        at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.invokeMethod(SerializedFormBuilder.java
:131)
        at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.buildSerializableFields(SerializedFormB
uilder.java:482)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.invokeMethod(SerializedFormBuilder.java
:131)
        at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.buildClassSerializedForm(SerializedForm
Builder.java:185)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.invokeMethod(SerializedFormBuilder.java
:131)
        at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.buildPackageSerializedForm(SerializedFo
rmBuilder.java:167)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.invokeMethod(SerializedFormBuilder.java
:131)
        at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.buildSerializedFormSummaries(Serialized
FormBuilder.java:148)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.invokeMethod(SerializedFormBuilder.java
:131)
        at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.buildSerializedForm(SerializedFormBuild
er.java:116)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.invokeMethod(SerializedFormBuilder.java
:131)
        at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
        at com.sun.tools.doclets.internal.toolkit.builders.SerializedFormBuilder.build(SerializedFormBuilder.java:101)
        at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.generateOtherFiles(AbstractDoclet.java:137)
        at com.sun.tools.doclets.formats.html.HtmlDoclet.generateOtherFiles(HtmlDoclet.java:66)
        at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.startGeneration(AbstractDoclet.java:122)
        at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.start(AbstractDoclet.java:64)
        at com.sun.tools.doclets.formats.html.HtmlDoclet.start(HtmlDoclet.java:42)
        at com.sun.tools.doclets.standard.Standard.start(Standard.java:16)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at com.sun.tools.javadoc.DocletInvoker.invoke(DocletInvoker.java:211)
        at com.sun.tools.javadoc.DocletInvoker.start(DocletInvoker.java:91)
        at com.sun.tools.javadoc.Start.parseAndExecute(Start.java:333)
        at com.sun.tools.javadoc.Start.begin(Start.java:127)
        at com.sun.tools.javadoc.Main.execute(Main.java:41)
        at com.sun.tools.javadoc.Main.main(Main.java:31)
Building index for all the packages and classes...
Generating .\overview-tree.html...
Generating .\index-all.html...
Generating .\deprecated-list.html...
Building index for all classes...
Generating .\allclasses-frame.html...
Generating .\allclasses-noframe.html...
Generating .\index.html...
Generating .\help-doc.html...
Generating .\stylesheet.css...