How to make LibreOffice 3.3.0 run on modern Ubuntu linix?

I want to regression-test a bug in LO 3.3.0 as it suggests doing at QA/BugTriage - The Document Foundation Wiki (step 7). I’m running Ununtu 26.04 LTS.

However problems with JRE have stymied me.

I unpacked LO 3.3.0.4 from https://downloadarchive.documentfoundation.org/libreoffice/old/3.3.0.4/deb/x86_64/LibO_3.3.0_Linux_x86-64_install-deb_en-US.tar.gz. It complained that no Java Runtime Environment was available (I had several installed including the old java-8-openjdk-amd64). strace revealed a segfault occurring in (instdir)/libreoffice_3.3.0.4/bin/javaldx as LO probed each java installation. So the javaldx shipped with LO must have a binary API incompatibility with modern jdk builds.

But Oracle JRE 6u45 downloaded from Oracle seemed to work: LO let me select it in Tools->Options->Java. So far, so good.

But then: I can open a trivial .doc file; but SaveAs in .uot format (which I want to test) gives a “JRE is Defective” popup and the terminal shows:

[Java framework]sunjavaplugin.so could not load Java runtime library:
file:///home/admin/opt/jdk-special/jre1.6.0_45/lib/amd64/server/libjvm.so

[BTW, I’ve verified that all the parts are 64-bit code, not 32-bit x86]

What’s the solution?
If anyone is able to run LO 3.3.0 on a modern Linux distribution, please chime in!

P.S. Is there a .AppImage or similar thing which is completely self-contained?

How does the “bibisect” system` test that version (or does it)?