Incompatible Java version 53

[MightyPork]

After upgrading the plugin I got this crash, had to disable through the IDE internal error dialog.

runtime is the bundled from jetbrains.

com.intellij.diagnostic.PluginException: While loading class net.seesharpsoft.intellij.plugins.csv.CsvFileTypeOverrider: net/seesharpsoft/intellij/plugins/csv/CsvFileTypeOverrider has been compiled by a more recent version of the Java Runtime (class file version 53.0), this version of the Java Runtime only recognizes class file versions up to 52.0 [Plugin: net.seesharpsoft.intellij.plugins.csv]
	at com.intellij.ide.plugins.cl.PluginClassLoader.loadClassInsideSelf(PluginClassLoader.java:262)
	at com.intellij.ide.plugins.cl.PluginClassLoader.tryLoadingClass(PluginClassLoader.java:205)
	at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:113)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:348)
	at com.intellij.openapi.extensions.impl.ExtensionComponentAdapter.getImplementationClass(ExtensionComponentAdapter.java:80)
	at com.intellij.openapi.extensions.impl.ExtensionComponentAdapter.createInstance(ExtensionComponentAdapter.java:39)
	at com.intellij.openapi.extensions.impl.XmlExtensionAdapter.createInstance(XmlExtensionAdapter.java:68)
	at com.intellij.openapi.extensions.impl.ExtensionPointImpl.processAdapter(ExtensionPointImpl.java:446)
	at com.intellij.openapi.extensions.impl.ExtensionPointImpl.processAdapter(ExtensionPointImpl.java:433)
	at com.intellij.openapi.extensions.impl.ExtensionPointImpl.access$100(ExtensionPointImpl.java:38)
	at com.intellij.openapi.extensions.impl.ExtensionPointImpl$1.next(ExtensionPointImpl.java:336)
	at com.intellij.openapi.extensions.impl.ExtensionProcessingHelper.computeSafeIfAny(ExtensionProcessingHelper.java:39)
	at com.intellij.openapi.extensions.ExtensionPointName.computeSafeIfAny(ExtensionPointName.java:59)
	at com.intellij.openapi.fileTypes.impl.FileTypeManagerImpl.getFileTypeByFile(FileTypeManagerImpl.java:746)
	at com.intellij.openapi.fileTypes.impl.FileTypeManagerImpl.getFileTypeByFile(FileTypeManagerImpl.java:740)
	at com.intellij.openapi.vfs.VirtualFile.getFileType(VirtualFile.java:330)
	at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.getFileType(VirtualFileSystemEntry.java:460)
	at com.intellij.psi.templateLanguages.TemplateDataLanguagePusher.acceptsFile(TemplateDataLanguagePusher.java:82)
	at com.intellij.openapi.roots.impl.FilePropertyPusher.acceptsFile(FilePropertyPusher.java:64)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.doApplyPushersToFile(PushedFilePropertiesUpdaterImpl.java:366)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.lambda$applyPushersToFile$14(PushedFilePropertiesUpdaterImpl.java:351)
	at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:869)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.applyPushersToFile(PushedFilePropertiesUpdaterImpl.java:348)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.lambda$null$9(PushedFilePropertiesUpdaterImpl.java:293)
	at com.intellij.openapi.roots.impl.FileIndexBase$1.visitFileEx(FileIndexBase.java:58)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:304)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:336)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:336)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:336)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:336)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:336)
	at com.intellij.openapi.roots.impl.FileIndexBase.iterateContentUnderDirectory(FileIndexBase.java:39)
	at com.intellij.openapi.roots.impl.ModuleFileIndexImpl.iterateContentUnderDirectory(ModuleFileIndexImpl.java:16)
	at com.intellij.openapi.roots.impl.ModuleFileIndexImpl.iterateContent(ModuleFileIndexImpl.java:30)
	at com.intellij.openapi.roots.impl.FileIndexBase.iterateContent(FileIndexBase.java:32)
	at com.intellij.openapi.roots.impl.ModuleFileIndexImpl.iterateContent(ModuleFileIndexImpl.java:16)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.lambda$null$10(PushedFilePropertiesUpdaterImpl.java:292)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.invokeConcurrentlyIfPossible(PushedFilePropertiesUpdaterImpl.java:306)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.doPushAll(PushedFilePropertiesUpdaterImpl.java:300)
	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.pushAllPropertiesNow(PushedFilePropertiesUpdaterImpl.java:155)
	at com.intellij.util.indexing.UnindexedFilesUpdater.updateUnindexedFiles(UnindexedFilesUpdater.java:65)
	at com.intellij.util.indexing.UnindexedFilesUpdater.performInDumbMode(UnindexedFilesUpdater.java:137)
	at com.intellij.openapi.project.DumbServiceImpl.lambda$runSingleTask$10(DumbServiceImpl.java:756)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:166)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:627)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:572)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:61)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:153)
	at com.intellij.openapi.project.DumbServiceImpl.runSingleTask(DumbServiceImpl.java:749)
	at com.intellij.openapi.project.DumbServiceImpl.runBackgroundProcess(DumbServiceImpl.java:726)
	at com.intellij.openapi.project.DumbServiceImpl.access$500(DumbServiceImpl.java:71)
	at com.intellij.openapi.project.DumbServiceImpl$7.run(DumbServiceImpl.java:680)
	at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:932)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcessWithProgressAsync$5(CoreProgressManager.java:434)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$null$3(ProgressRunner.java:233)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:166)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:627)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:572)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:61)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:153)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$4(ProgressRunner.java:233)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.UnsupportedClassVersionError: net/seesharpsoft/intellij/plugins/csv/CsvFileTypeOverrider has been compiled by a more recent version of the Java Runtime (class file version 53.0), this version of the Java Runtime only recognizes class file versions up to 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
	at com.intellij.util.lang.UrlClassLoader._defineClass(UrlClassLoader.java:380)
	at com.intellij.util.lang.UrlClassLoader.defineClass(UrlClassLoader.java:376)
	at com.intellij.util.lang.UrlClassLoader._findClass(UrlClassLoader.java:340)
	at com.intellij.ide.plugins.cl.PluginClassLoader.loadClassInsideSelf(PluginClassLoader.java:259)
	... 66 more

IDE

PhpStorm 2020.1.1
Build #PS-201.7223.96, built on April 30, 2020
Runtime version: 11.0.6+8-b765.40 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Linux 5.6.8-arch1-1
GC: ParNew, ConcurrentMarkSweep
Memory: 1960M
Cores: 4
Registry: run.processes.with.pty=TRUE
Non-Bundled Plugins: com.jetbrains.ChooseRuntime, de.santiv.fastscrolling, de.espend.idea.laravel, ru.adelf.idea.dotenv
Current Desktop: KDE

[sgri]

I have the same issue.

[SeeSharpSoft]

@MightyPork @sgri You have to make sure using Java 9 or above. Please double check your system: https://intellij-support.jetbrains.com/hc/en-us/articles/206544879-Selecting-the-JDK-version-the-IDE-will-run-under https://www.baeldung.com/java-lang-unsupportedclassversion

For the feature of a custom separator since v2.11.0, I had to switch to Java 9 (53) due to a new dependency. I can't compile the latest version with Java8 (52) (see https://travis-ci.com/github/SeeSharpSoft/intellij-csv-validator/jobs/333366033)