我一直在尝试安装 Java 15。几周后，我在 Elementary OS 上顺利安装了它。今天我切换到 Ubuntu 并尝试再次安装它，但这个错误让我抓狂：
download failed
Oracle JDK 15 is NOT installed.
dpkg: error processing package oracle-java15-installer (--configure):
installed oracle-java15-installer package post-installation script subprocess
returned error exit status 1
Errors were encountered while processing:
oracle-java15-installer
E: Sub-process /usr/bin/dpkg returned an error code (1)
我使用了以下命令：
sudo add-apt-repository ppa:linuxuprising/java
sudo apt update
sudo apt install oracle-java15-installer