Also fix the path to the sdkmanager (the old one was removed in the latest
images and the incorrect path caused a weird sudo error) and install
Java 17 as that's necessary for newer versions of the Gradle plugin.
Ubuntu 22.04 ships OpenSSL 3, which requires debug symbols so we can
whitelist leaks because we don't deinitialize the library. And because
the shipped library is not built with `-fno-omit-frame-pointer`, the
build with AddressSanitizer can't use its fast stack unwind method.
However, the previous workaround for DTLS handling with glibc apparently
isn't necessary anymore.
In the custom OpenSSL build we drop no-stdio as that lets the configure
check for libldns fail because ERR_print_errors_fp@OPENSSL_3.0.0 is not
found.
For ccache, the default path to the cache directory has changed.
Also simplified the NM tests as there is only one build since
085daf4743 ("nm: Remove old libnm-glib compat stuff").
According to the documentation for actions/cache, the lookup is already
scoped to the current branch (with fallback to any base branch including
the default branch).
On travis-ci.com (travis-ci.org will be discontinued by the end of the
year) we are now charged for each minute. We only got 10000 credits in
a trial plan, which we used up with a few builds. Minutes also cost a
different amount of credits on different platforms: 10 on Linux,
but 50 on macOS (installing the dependencies on macOS alone took 12-15
minutes on Travis for some reason, takes about half on Github's runners).
No native Windows build yet as we have the same issue as on AppVeyor where
threading/streaming tests might get stuck. And there is also only a
single Windows platform to test on. Plus building/testing on Windows is
very slow (and getting ccache to work seems tricky).
The 'sw_collector' test case had to be disabled because we can't access
/usr/local/share on the Github build hosts (the process is just blocked
in readdir() and eventually times out).
Unfortunately, we can't test on different architectures anymore (in
particular ARM and the big-endian IBM Z/x390x).
Tobias Brunner