I corrected the jdk1.1 javadoc so it had lib/properties and lib/dtds (see 1263687)
and then ran it through our documentation. I got:

calterra% /net/wombat/export/archive/pelegri/JDK1.1NIGHTLY/solaris/bin/javadoc -classpath ../classes:.:/net/wombat/export/archive/pelegri/JDK1.1NIGHTLY/solaris/lib/classes.zip -doctype MIF -d mif java/beans/*.java
[Parsed DTD html2 in 607ms]
Read dtd
generating documentation for interface java.beans.PropertyChangeListener
sun.tools.java.CompilerError: getSuperClass java.lang.Object
at sun.tools.java.ClassDefinition.getSuperClass(ClassDefinition.java:113)
at sun.tools.javadoc.MIFDocumentationGenerator.genClassIndex(MIFDocumentationGenerator.java:295)
at sun.tools.javadoc.MIFDocumentationGenerator.genClassDocumentation(MIFDocumentationGenerator.java:183)
at sun.tools.javadoc.MIFDocumentationGenerator.genClassDocumentation(MIFDocumentationGenerator.java:131)
at sun.tools.javadoc.Main.main(Main.java:269)
error: An error has occurred in the compiler; please file a bug report (###@###.###).