My Arch system is up to date. I thought I'd try out pycharm today but running it dies with the subject error:

pc:~ sudo pacman -S pycharm-community-edition
resolving dependencies...
looking for conflicting packages...

Packages (3) jre8-openjdk-8.u144-1 jre8-openjdk-headless-8.u144-1 pycharm-community-edition-2017.3.3-2

Total Installed Size: 365.71 MiB

:: Proceed with installation? [Y/n]
(3/3) checking keys in keyring [##############################################################################] 100%
(3/3) checking package integrity [##############################################################################] 100%
(3/3) loading package files [##############################################################################] 100%
(3/3) checking for file conflicts [##############################################################################] 100%
(3/3) checking available disk space [##############################################################################] 100%
:: Processing package changes...
(1/3) installing jre8-openjdk-headless [##############################################################################] 100%
Default Java environment is already set to 'java-7-openjdk/jre'
See 'archlinux-java help' to change it
Optional dependencies for jre8-openjdk-headless
java-rhino: for some JavaScript support [installed]
(2/3) installing jre8-openjdk [##############################################################################] 100%
Default Java environment is already set to 'java-7-openjdk/jre'
See 'archlinux-java help' to change it
when you use a non-reparenting window manager,
set _JAVA_AWT_WM_NONREPARENTING=1 in /etc/profile.d/jre.sh
Optional dependencies for jre8-openjdk
icedtea-web: web browser plugin + Java Web Start
alsa-lib: for basic sound support [installed]
gtk2: for the Gtk+ look and feel - desktop usage [installed]
java-openjfx: for JavaFX GUI components support
(3/3) installing pycharm-community-edition [##############################################################################] 100%
Optional dependencies for pycharm-community-edition
ipython2: IPython integration for Python 2
ipython: IPython integration for Python 3 [installed]
python2: Python 2 support [installed]
python: Python 3 support [installed]
:: Running post-transaction hooks...
(1/2) Arming ConditionNeedsUpdate...
(2/2) Updating the desktop file MIME type cache...
pc:~ pycharm
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/intellij/idea/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:803)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:442)
at java.net.URLClassLoader.access$100(URLClassLoader.java:64)
at java.net.URLClassLoader$1.run(URLClassLoader.java:354)
at java.net.URLClassLoader$1.run(URLClassLoader.java:348)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:347)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:312)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)