The hate comes from more of the system's administration side. Back in the early days, I've spent long long hours on an all day calls due to a product being down

The hate comes from more of the system's administration side. Back in the early days, I've spent long long hours on an all day calls due to a product being down arguing with Java Developers that their is nothing wrong with the server and it's their code and the release they didn't test as well as they thought. Eventually a day or two later a "fix" is released but that releases change log is usually worded in a why to throw us under the bus further and save face with the C levels. As IT was considered a cost center vs the Developers that added features that made the company money, it was insanely harder to convince a C level that it was not something that changed on your side. I have had to put together charts, graphs and PowerPoint RCA's just to prove a point. Do that 100 times, over a 10 year period and it'll make anyone hate a specific language or technology. I don't hate Java like I use to and it has definitely got better over the years, but it's not the first tool I reach for or consider for new projects because of past experiences. I understand that a lot of the issues were because people were not "leaving their ego at the door" but regardless it still created a negative experience that followed me for years.