Error running under IDEA 2020.1 + Java 8 runtime

[putypuruty]

Hello,

I tried using the SpotBugs plugin under IDEA 2020.1 but I get an exception and the only way to have a working IDE again is to uninstall/disable the plugin.

As you can see in the stacktrace, the problem is that the plugin seems to be compiled with Java 11.

If I run IDEA with a Java 11 runtime, the plugin works just fine but I don't think that this should be required, it should also work with a Java 8 runtime.

2020-04-14 09:04:36,143 [ 6836] ERROR - m.PlatformProjectOpenProcessor - Fatal error initializing plugin org.jetbrains.plugins.spotbugs com.intellij.ide.plugins.StartupAbortedException: Fatal error initializing plugin org.jetbrains.plugins.spotbugs at com.intellij.serviceContainer.ComponentManagerImplKt.handleComponentError(ComponentManagerImpl.kt:952) at com.intellij.serviceContainer.ComponentManagerImpl.handleInitComponentError(ComponentManagerImpl.kt:333) at com.intellij.serviceContainer.ComponentManagerImpl.registerComponents(ComponentManagerImpl.kt:198) at com.intellij.serviceContainer.ComponentManagerImpl.registerComponents(ComponentManagerImpl.kt:157) at com.intellij.openapi.project.ProjectLoadHelper$Companion.registerComponents(projectLoader.kt:29) at com.intellij.openapi.project.ProjectLoadHelper.registerComponents(projectLoader.kt) at com.intellij.openapi.project.impl.ProjectManagerImpl.initProject(ProjectManagerImpl.java:318) at com.intellij.platform.PlatformProjectOpenProcessorKt.convertAndLoadProject(PlatformProjectOpenProcessor.kt:413) at com.intellij.platform.PlatformProjectOpenProcessorKt.prepareProject(PlatformProjectOpenProcessor.kt:308) at com.intellij.platform.PlatformProjectOpenProcessorKt.access$prepareProject(PlatformProjectOpenProcessor.kt:1) at com.intellij.platform.PlatformProjectOpenProcessor$Companion$openExistingProject$$inlined$runInAutoSaveDisabledMode$lambda$1.invoke(PlatformProjectOpenProcessor.kt:181) at com.intellij.platform.PlatformProjectOpenProcessor$Companion$openExistingProject$$inlined$runInAutoSaveDisabledMode$lambda$1.invoke(PlatformProjectOpenProcessor.kt:58) at com.intellij.platform.ProjectUiFrameAllocator$run$1$$special$$inlined$createModalTask$1.run(progress.kt:37) at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:930) at com.intellij.openapi.progress.impl.CoreProgressManager$4.run(CoreProgressManager.java:480) at com.intellij.openapi.progress.impl.ProgressRunner.lambda$new$0(ProgressRunner.java:77) at com.intellij.openapi.progress.impl.ProgressRunner.lambda$null$3(ProgressRunner.java:233) at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:164) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:625) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:570) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:61) at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:151) at com.intellij.openapi.progress.impl.ProgressRunner.lambda$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: com.intellij.diagnostic.PluginException: While loading class org.jetbrains.plugins.spotbugs.core.FindBugsCompileAfterHook: org/jetbrains/plugins/spotbugs/core/FindBugsCompileAfterHook has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 [Plugin: org.jetbrains.plugins.spotbugs] [Plugin: org.jetbrains.plugins.spotbugs] ... 27 more Caused by: com.intellij.diagnostic.PluginException: While loading class org.jetbrains.plugins.spotbugs.core.FindBugsCompileAfterHook: org/jetbrains/plugins/spotbugs/core/FindBugsCompileAfterHook has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 [Plugin: org.jetbrains.plugins.spotbugs] 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.serviceContainer.ComponentManagerImpl.registerComponent(ComponentManagerImpl.kt:288) at com.intellij.serviceContainer.ComponentManagerImpl.registerComponents(ComponentManagerImpl.kt:194) ... 24 more Caused by: java.lang.UnsupportedClassVersionError: org/jetbrains/plugins/spotbugs/core/FindBugsCompileAfterHook has been compiled by a more recent version of the Java Runtime (class file version 55.0), 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) ... 31 more 2020-04-14 09:04:36,146 [ 6839] ERROR - m.PlatformProjectOpenProcessor - IntelliJ IDEA 2020.1 Build #IU-201.6668.121 2020-04-14 09:04:36,146 [ 6839] ERROR - m.PlatformProjectOpenProcessor - JDK: 1.8.0_171; VM: Java HotSpot(TM) 64-Bit Server VM; Vendor: Oracle Corporation 2020-04-14 09:04:36,146 [ 6839] ERROR - m.PlatformProjectOpenProcessor - OS: Linux 2020-04-14 09:04:36,147 [ 6840] ERROR - m.PlatformProjectOpenProcessor - Plugin to blame: SpotBugs version: 1.1.0

[amaembo]

Why are you using IDEA on Java 8 runtime? It's bundled with Java 11 runtime by default.

[putypuruty]

I've installed IDEA a long time ago without JBR and I'm just installing the updates as they come, I never got asked if I want to use JBR 11/was never "migrated" automatically to it.

I haven't seen anywhere that this plugin requires Java 11+ to run. Maybe it would be a good idea to explicitly mention it somewhere.

But as you also support IDEA 2019.3 which works with JBR 8, shouldn't the plugin work under Java 8, too? Just asking ;)

[amaembo]

@putypuruty default downloads for IDEA 2019.3 already bundle JBR 11. JBR 8 version is provided as a fallback in case of any problems. It's very likely that IDEA 2020.2 will not work on JDK 8 at all, so to me, it looks questionable to spend time supporting JDK 8 now, only for a few months.

Btw using non-bundled JDK you miss many UI-related fixes that are available in JBR. It's highly recommended to use bundled JBR, unless you have strong reasons to avoid it (e.g. it crashes on your particular system).

[putypuruty]

Thank you for the clarifications! I see your point why it's no longer worth supporting a Java 8 version of the plugin ;)

I've meanwhile used the steps described here to install JBR 11 and erverything seems to work OK so far.

Thank you once again for your time!

[simonrob]

Just to add another viewpoint to this discussion - I'd like to use SpotBugs with Android Studio (which is based on IDEA), but even the very latest version (4.0) still uses Java 8. Changing the runtime just causes a different error (see below).

Could you consider supporting SpotBugs for Android Studio?

Error:Internal error: (java.lang.ClassNotFoundException) com.google.wireless.android.sdk.stats.IntellijIndexingStats$Index
java.lang.ClassNotFoundException: com.google.wireless.android.sdk.stats.IntellijIndexingStats$Index
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
	at com.intellij.util.indexing.counters.IndexCounters.<clinit>(IndexCounters.java:34)
	at com.intellij.util.indexing.impl.MapReduceIndex.<init>(MapReduceIndex.java:92)
	at com.intellij.util.indexing.impl.MapReduceIndex.<init>(MapReduceIndex.java:108)
	at org.jetbrains.jps.backwardRefs.index.CompilerReferenceIndex$CompilerMapReduceIndex.<init>(CompilerReferenceIndex.java:274)
	at org.jetbrains.jps.backwardRefs.index.CompilerReferenceIndex.<init>(CompilerReferenceIndex.java:110)
	at org.jetbrains.jps.backwardRefs.JavaCompilerBackwardReferenceIndex.<init>(JavaCompilerBackwardReferenceIndex.java:13)
	at org.jetbrains.jps.backwardRefs.JavaBackwardReferenceIndexWriter.initialize(JavaBackwardReferenceIndexWriter.java:80)
	at org.jetbrains.jps.incremental.java.JavaBuilder.buildStarted(JavaBuilder.java:152)
	at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:361)
	at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:178)
	at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:140)
	at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:297)
	at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:130)
	at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:232)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

[amaembo]

Oh, I see. And which IntelliJ IDEA version Android Studio is based on? Downgrading to Java 8 is probably easy, but downgrading from 2019.3 to a lower version would be harder as we already using some new APIs.

[simonrob]

According to the release announcement, Android Studio 4.0 has been updated with improvements from IntelliJ IDEA 2019.3 and 2019.3.3 releases. Whether this means it is based on 2019.3+ or just includes fixes is not 100% clear though.

Here's the about screen information in case that helps:

Android Studio 4.0
Build #AI-193.6911.18.40.6514223, built on May 20, 2020
Runtime version: 1.8.0_242-release-1644-b3-6222593 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o

[amaembo]

Java 1.8 should be supported since version 1.2.0. Please check

[simonrob]

Thanks for this. I've updated, and the plugin now installs and shows up in the IDE using the default runtime.

However, when trying to actually scan a project, I get the same error as reported in my earlier comment. Incidentally, the existing (deprecated) FindBugs plugin gives the same error.

Is there anything I can do to help figure out why this is happening?

[amaembo]

I get the same error as reported in my earlier comment

Sorry, I don't understand which comment exactly you are referring to. Please paste the new error stack trace (even if the message is the same line numbers could be different now). Thanks.

[amaembo]

Btw some workarounds are mentioned here spotbugs/spotbugs#931 (comment)

[simonrob]

Thanks! (Should have spotted that myself, sorry.)

There are lots of suggestions there that don't seem like they could be related (keystore; eclipse; runtime), but what does work is to disable Compile affected files before analyze as suggested in spotbugs/spotbugs#931 (comment).

If there's anything else I can do to help you figure out why compiling is fine normally but fails when initiated by SpotBugs I'm happy to help.