The source code for TreeDemo [1], TreeIconDemo [2], and TreeIconDemo2 [3] contain sample HTML files (which are used for a mini-file browser) that have the following content:

blah, blah, blah, blah, blah...

(See bloch,html for an example.)

Could you replace this content with something more informal?

[1] http://closedjdk.us.oracle.com/sedocs/tutorial/file/401e3d700d08/uiswing/examples/components/TreeDemoProject/src/components
[2] http://closedjdk.us.oracle.com/sedocs/tutorial/file/401e3d700d08/uiswing/examples/components/TreeIconDemoProject/src/components
[3] http://closedjdk.us.oracle.com/sedocs/tutorial/file/401e3d700d08/uiswing/examples/components/TreeIconDemo2Project/src/components