Heroku fails to bundle python-javabridge (javahome not found)

I am trying to deploy my first plotly-dash app (written in Python) to Heroku. I am having trouble with bundling up all the packages to compile the app, currently with python-javabridge.

When I try to deploy my app, even after deleting python-javabridge from the requirements.txt, it still tries to bundle it, giving me the following error:

remote:        Collecting jeepney>=0.4.2; sys_platform == "linux"
remote:          Downloading jeepney-0.6.0-py3-none-any.whl (45 kB)
remote:        Collecting importlib-resources; python_version < "3.7"
remote:          Downloading importlib_resources-4.1.1-py3-none-any.whl (22 kB)
remote:        Collecting python-javabridge==4.0.0
remote:          Downloading python-javabridge-4.0.0.tar.gz (1.3 MB)
remote:            ERROR: Command errored out with exit status 1:
remote:             command: /app/.heroku/python/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-qllzoihk/python-javabridge/setup.py'"'"'; __file__='"'"'/tmp/pip-install-qllzoihk/python-javabridge/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-xeh4coov
remote:                 cwd: /tmp/pip-install-qllzoihk/python-javabridge/
remote:            Complete output (11 lines):
remote:            Traceback (most recent call last):
remote:              File "<string>", line 1, in <module>
remote:              File "/tmp/pip-install-qllzoihk/python-javabridge/setup.py", line 412, in <module>
remote:                ext_modules=ext_modules(),
remote:              File "/tmp/pip-install-qllzoihk/python-javabridge/setup.py", line 96, in ext_modules
remote:                java_home = find_javahome()
remote:              File "/tmp/pip-install-qllzoihk/python-javabridge/javabridge/locate.py", line 133,
in find_javahome
remote:                java_bin = get_out(["bash", "-c", "type -p java"])
remote:              File "/tmp/pip-install-qllzoihk/python-javabridge/javabridge/locate.py", line 130,
in get_out
remote:                raise Exception("Error finding javahome on linux: %s" % cmd)
remote:            Exception: Error finding javahome on linux: ['bash', '-c', 'type -p java']
remote:            ----------------------------------------
remote:        ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
remote:  !     Push rejected, failed to compile Python app.
remote:
remote:  !     Push failed

What I have done:

Just running pip install javabridge works perfectly, no problems.

I added JAVA_HOME to my system variables and to path, didn't help. Writing javac or java --version on the cmd outputs the version as expected.

I use Windows 10, Python 3.7, Anaconda3, Spyder terminal to run the commands

from Heroku fails to bundle python-javabridge (javahome not found)