[NETBEANS-1423] IllegalArgumentException when searching for possible code writing/completion.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 10.0
• Component/s: editor - Completion & Templates
• Labels: editor

Environment

Windows 10, Incubator NetBeans Linux 893, Java 11.0.1

• Assignee: ARUNAVA SINHA
• Reporter: Michal Rama
• Created: 15/Oct/18 11:03
• Updated: 03/Nov/19 20:04
• Resolved: 01/Nov/18 20:16

Description

Hello,

When I start writing a code (such as a class name), it says "please wait" and then a list of possible classes is displayed.

Or, if I write a dot after the object name, the same is done, and then a list of related methods and fields is displayed.

Sometimes it happens that "please wait" is displayed for a few seconds and then it will throw an error.

A java.lang.RuntimeException exception has occurred.
However, the system should continue working without further problems.

Clicking Show Details will appear.

java.lang.IllegalArgumentException: Argument compositeType cannot be null.
 at java.management/javax.management.openmbean.CompositeDataSupport.<init>(CompositeDataSupport.java:206)
 at java.management/javax.management.openmbean.CompositeDataSupport.<init>(CompositeDataSupport.java:118)
 at java.management/sun.management.ThreadInfoCompositeData.getCompositeData(ThreadInfoCompositeData.java:130)
 at java.management/sun.management.ThreadInfoCompositeData.toCompositeData(ThreadInfoCompositeData.java:72)
Caused: java.lang.reflect.InvocationTargetException
 at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.base/java.lang.reflect.Method.invoke(Method.java:566)
 at org.netbeans.modules.sampler.SamplesOutputStream.toCompositeData(SamplesOutputStream.java:178)
Caused: java.lang.RuntimeException
 at org.netbeans.modules.sampler.SamplesOutputStream.toCompositeData(SamplesOutputStream.java:184)
 at org.netbeans.modules.sampler.SamplesOutputStream.access$400(SamplesOutputStream.java:44)
 at org.netbeans.modules.sampler.SamplesOutputStream$Sample.writeToStream(SamplesOutputStream.java:285)
 at org.netbeans.modules.sampler.SamplesOutputStream$Sample.access$300(SamplesOutputStream.java:253)
 at org.netbeans.modules.sampler.SamplesOutputStream.close(SamplesOutputStream.java:202)
 at org.netbeans.modules.sampler.Sampler.stopSampling(Sampler.java:231)
 at org.netbeans.modules.sampler.Sampler.stopAndWriteTo(Sampler.java:197)
[catch] at org.netbeans.modules.editor.completion.CompletionImplProfile.stopImpl(CompletionImplProfile.java:84)
 at org.netbeans.modules.editor.completion.CompletionImplProfile.access$000(CompletionImplProfile.java:29)
 at org.netbeans.modules.editor.completion.CompletionImplProfile$1.run(CompletionImplProfile.java:59)
 at org.openide.util.RequestProcessor$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)
 at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)

Sometimes he does it only once, sometimes several times in a row.

Additionally, each error will add Saving snapshot,

which can not be canceled. (Only by closing the application)

This bug does not limit me, but it is quite annoying.

Please repair

Thank you

Issue Links

• Is contained by: NETBEANS-1654 Slow Code Completion Detected under JDK 12