[ 
https://issues.apache.org/jira/browse/NETBEANS-1179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Michael Bauland resolved NETBEANS-1179.
---------------------------------------
    Resolution: Fixed

Updating my Java to the latest release: Java SE Development Kit 8u191 fixed the 
problem.

> javadoc code completion not working
> -----------------------------------
>
>                 Key: NETBEANS-1179
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-1179
>             Project: NetBeans
>          Issue Type: Bug
>          Components: editor - Completion & Templates
>    Affects Versions: 9.0, 10.0
>         Environment: Windows 10
>            Reporter: Michael Bauland
>            Priority: Critical
>         Attachments: ui.log
>
>
> When I use the code completion (Ctrl+Space), the available methods and 
> variables are listed, however the corresponding javadoc (normally shown in a 
> second pop-up next to it) is missing.
> The corresponding setting (Options -> Editor -> Code Completion: Auto Popup 
> Documentation Window ) is active, but does not seem to have an effect.
> The following exception occurs whenever code completion popup opens:
> java.lang.invoke.LambdaConversionException: Type mismatch for lambda argument 
> 1: interface javax.lang.model.element.ExecutableElement is not convertible to 
> interface javax.lang.model.element.ExecutableElement
>     at 
> java.lang.invoke.AbstractValidatingLambdaMetafactory.validateMetafactoryArgs(AbstractValidatingLambdaMetafactory.java:267)
>     at 
> java.lang.invoke.LambdaMetafactory.metafactory(LambdaMetafactory.java:303)
>     at java.lang.invoke.CallSite.makeSite(CallSite.java:289)
> Caused: java.lang.BootstrapMethodError: call site initialization exception
>     at java.lang.invoke.CallSite.makeSite(CallSite.java:328)
>     at 
> java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:296)
>     at 
> org.netbeans.api.java.source.ui.ElementJavadoc.getElementDocFromSource(ElementJavadoc.java:882)
>     at 
> org.netbeans.api.java.source.ui.ElementJavadoc.lambda$getElementDocFromSource$16(ElementJavadoc.java:849)
>     at 
> org.netbeans.api.java.source.ui.ElementJavadoc$$Lambda$431/40162588.run(Unknown
>  Source)
>     at 
> org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:501)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
>     at 
> org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:130)
>     at 
> org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:114)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178)
>     at 
> org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
>     at 
> org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
>     at 
> org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
>     at 
> org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)
>     at 
> org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:81)
>     at 
> org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:451)
>     at 
> org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:422)
>     at 
> org.netbeans.api.java.source.ui.ElementJavadoc.getElementDocFromSource(ElementJavadoc.java:845)
>     at 
> org.netbeans.api.java.source.ui.ElementJavadoc.getElementDoc(ElementJavadoc.java:742)
>     at 
> org.netbeans.api.java.source.ui.ElementJavadoc.<init>(ElementJavadoc.java:369)
>     at 
> org.netbeans.api.java.source.ui.ElementJavadoc.create(ElementJavadoc.java:172)
>     at 
> org.netbeans.modules.editor.java.JavaCompletionProvider$JavaCompletionQuery$3.create(JavaCompletionProvider.java:235)
>     at 
> org.netbeans.modules.editor.java.JavaCompletionProvider$JavaCompletionQuery$3.create(JavaCompletionProvider.java:231)
>     at 
> org.netbeans.modules.java.completion.JavaDocumentationTask.resolve(JavaDocumentationTask.java:90)
>     at org.netbeans.modules.java.completion.BaseTask.run(BaseTask.java:93)
>     at 
> org.netbeans.modules.java.completion.JavaDocumentationTask.run(JavaDocumentationTask.java:41)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
>     at 
> org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:130)
>     at 
> org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:114)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178)
>     at 
> org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
>     at 
> org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
>     at 
> org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
>     at 
> org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)
>     at 
> org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:81)
>     at 
> org.netbeans.modules.editor.java.JavaCompletionProvider$JavaCompletionQuery.query(JavaCompletionProvider.java:243)
>     at 
> org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:198)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
> [catch] at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)



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