Can't start Pycharm

Same here arch linux:

pycharm
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.intellij.ide.ClassUtilCore to field sun.net.www.protocol.jar.JarFileFactory.fileCache
WARNING: Please consider reporting this to the maintainers of com.intellij.ide.ClassUtilCore
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Start Failed: Internal error. Please report to http://jb.gg/ide/critical-startup-errors

java.lang.RuntimeException: com.intellij.ide.plugins.PluginManager$StartupAbortedException: Fatal error initializing 'com.intellij.ide.ui.LafManager'
    at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:216)
    at com.intellij.idea.IdeaApplication.lambda$initApplication$0(IdeaApplication.java:75)
    at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
    at java.desktop/java.awt.EventQueue.access$600(EventQueue.java:97)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:361)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: com.intellij.ide.plugins.PluginManager$StartupAbortedException: Fatal error initializing 'com.intellij.ide.ui.LafManager'
    at com.intellij.ide.plugins.PluginManager.handleComponentError(PluginManager.java:257)
    at com.intellij.openapi.components.impl.PlatformComponentManagerImpl.handleInitComponentError(PlatformComponentManagerImpl.java:43)
    at com.intellij.openapi.components.impl.ComponentManagerImpl$ComponentConfigComponentAdapter.getComponentInstance(ComponentManagerImpl.java:506)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.createComponents(ComponentManagerImpl.java:107)
    at com.intellij.openapi.application.impl.ApplicationImpl.lambda$createComponents$9(ApplicationImpl.java:446)
    at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:157)
    at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:580)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:525)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:85)
    at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:144)
    at com.intellij.openapi.application.impl.ApplicationImpl.createComponents(ApplicationImpl.java:453)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.init(ComponentManagerImpl.java:91)
    at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:405)
    at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:391)
    at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:209)
    ... 16 more
Caused by: java.lang.NoClassDefFoundError: com/sun/java/swing/plaf/windows/WindowsLookAndFeel
    at com.intellij.ide.ui.laf.IdeaLaf.initIdeaDefaults(IdeaLaf.java:81)
    at com.intellij.ide.ui.laf.IdeaLaf.initComponentDefaults(IdeaLaf.java:28)
    at java.desktop/javax.swing.plaf.basic.BasicLookAndFeel.getDefaults(BasicLookAndFeel.java:150)
    at java.desktop/javax.swing.plaf.metal.MetalLookAndFeel.getDefaults(MetalLookAndFeel.java:1560)
    at com.intellij.ide.ui.laf.darcula.DarculaLaf.getDefaults(DarculaLaf.java:95)
    at java.desktop/javax.swing.UIManager.setLookAndFeel(UIManager.java:587)
    at com.intellij.ide.ui.laf.LafManagerImpl.setCurrentLookAndFeel(LafManagerImpl.java:395)
    at com.intellij.ide.ui.laf.LafManagerImpl.initComponent(LafManagerImpl.java:191)
    at com.intellij.openapi.components.impl.ComponentManagerImpl$ComponentConfigComponentAdapter.getComponentInstance(ComponentManagerImpl.java:488)
    ... 28 more
Caused by: java.lang.ClassNotFoundException: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
    at com.intellij.util.lang.UrlClassLoader.findClass(UrlClassLoader.java:224)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:566)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
    ... 37 more

Please switch to a bundled JDK: https://intellij-support.jetbrains.com/hc/en-us/articles/206544879