I work in an organization that has bought support for Java (11, I think). Your comment is technically correct, but doesn't capture the whole situation I believe.
We use OpenJDK11 currently. The reason we're buying support is because bug fixes and backports END for JDK11 once JDK12 is (already was) released. If you want security/bug fixes, you'll need to upgrade your application to the new JDK every 6 months. For a team like ours (~8) people, it's simply not viable for us to be in a state of continual upgrading. We wouldn't get anything else accomplished. Our job is to provide value to the business, not be stuck in perpetual runtime upgrades. Buying the license allows us time between upgrading JDK versions so that we can target jdk11 for new applications.
For quite some time after jdk11 was released there was also a prevalent opinion by some of the more senior members on the team that Oracle was going to be gimping the OpenJDK release in some way or another. Even after being shown that that wasn't the case we had _multiple_ meetings where it was discussed that we shouldn't migrate to OpenJDK because of bugs that "existed in there, that don't in Oracle build". This is most certainly due to historical reasons, and I don't blame them for thinking it.
I can't speak to why we don't rely on other LTS options, I was not a part of the meetings that decided our actions. Ideally, we would rely on something like adoptopenjdk, but the powers that be decided to pay Oracle instead.
We use OpenJDK11 currently. The reason we're buying support is because bug fixes and backports END for JDK11 once JDK12 is (already was) released. If you want security/bug fixes, you'll need to upgrade your application to the new JDK every 6 months. For a team like ours (~8) people, it's simply not viable for us to be in a state of continual upgrading. We wouldn't get anything else accomplished. Our job is to provide value to the business, not be stuck in perpetual runtime upgrades. Buying the license allows us time between upgrading JDK versions so that we can target jdk11 for new applications.
For quite some time after jdk11 was released there was also a prevalent opinion by some of the more senior members on the team that Oracle was going to be gimping the OpenJDK release in some way or another. Even after being shown that that wasn't the case we had _multiple_ meetings where it was discussed that we shouldn't migrate to OpenJDK because of bugs that "existed in there, that don't in Oracle build". This is most certainly due to historical reasons, and I don't blame them for thinking it.
I can't speak to why we don't rely on other LTS options, I was not a part of the meetings that decided our actions. Ideally, we would rely on something like adoptopenjdk, but the powers that be decided to pay Oracle instead.