Develop Reference

Eclipse 202003 javaIO error during build project

Has anyone encountered with the following error during use Eclipse latest version: 202003?
I've downloaded it, update Java 1.8 to the latest Java version, start eclipse, add my PHP project and during the building or validation or DLTK indexing I got an Internal error.
Part from eclipse .log file:
!ENTRY org.eclipse.dltk.core.index.lucene 1 1 2020-04-30 16:33:01.599
!MESSAGE Recovering index storage: Y:\.metadata\.plugins\org.eclipse.dltk.core.index.lucene\index\4b74b979-df85-4fb0-bd11-ad91f89ae355\timestamps
!ENTRY org.eclipse.dltk.core.index.lucene 4 4 2020-04-30 16:33:01.617
!MESSAGE Index writer could not be created, index data might be corrupted.
!STACK 0
java.io.IOException: The request is not supported
at sun.nio.ch.FileDispatcherImpl.lock0(Native Method)
at sun.nio.ch.FileDispatcherImpl.lock(Unknown Source)
at sun.nio.ch.FileChannelImpl.tryLock(Unknown Source)
at java.nio.channels.FileChannel.tryLock(Unknown Source)
at org.apache.lucene.store.NativeFSLockFactory.obtainFSLock(NativeFSLockFactory.java:126)
at org.apache.lucene.store.FSLockFactory.obtainLock(FSLockFactory.java:41)
at org.apache.lucene.store.BaseDirectory.obtainLock(BaseDirectory.java:45)
at org.apache.lucene.store.SleepingLockWrapper.obtainLock(SleepingLockWrapper.java:84)
at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:729)
at org.eclipse.dltk.internal.core.index.lucene.IndexContainer.createWriter(IndexContainer.java:139)
at org.eclipse.dltk.internal.core.index.lucene.IndexContainer.getWriter(IndexContainer.java:146)
at org.eclipse.dltk.internal.core.index.lucene.IndexContainer.getTimestampsWriter(IndexContainer.java:167)
at org.eclipse.dltk.internal.core.index.lucene.IndexRecovery.tryRecover(IndexRecovery.java:62)
at org.eclipse.dltk.internal.core.index.lucene.IndexContainer.getWriter(IndexContainer.java:149)
at org.eclipse.dltk.internal.core.index.lucene.IndexContainer.getTimestampsWriter(IndexContainer.java:167)
at org.eclipse.dltk.internal.core.index.lucene.IndexRecovery.tryRecover(IndexRecovery.java:62)
at org.eclipse.dltk.internal.core.index.lucene.IndexContainer.getWriter(IndexContainer.java:149)
at org.eclipse.dltk.internal.core.index.lucene.IndexContainer.getTimestampsWriter(IndexContainer.java:167)
........
I've no idea what is going wrong? WTF?
Java version is: jre1.8.0_251 and I've also tried reinstall previous java version what I used. This was: 1.8.0_202...but I got the same error again, and again, and again :(
I would like upgrade my Eclipse because of Symfony plugin...
Previous used java version: 1.8.0_191. I've reinstalled it and got back the error:
An internal error occurred during: "Build Modules".
java.lang.StackOverflowError
Building process stop at 49% :(
Can anybody help me?

Hi this is problem with DLTK 6.1 + PDT 7.1. We already fixed this: no more async and FS locks. Please update to recent snapshots or try Eclipse 2020-06 M2 or newest: https://www.eclipse.org/downloads/packages/release/2020-06/m2

Error: Eclipse 4.5 MARS NullPointerException (JUnit-Tests)

I do have a problem with Eclipse 4.5 when building a JUnit Test Class.
I can build all tests with the help of ant in its repository.
I think it is a configuration problem in Eclipse.
I already followed a lot of solutions in this forum:
Cleaning the path of eclipse itself
restarting eclipse
try to compile with JUnit3
try to compile with JUnit4
try another JRE
start the project in a different workspace
The reason why I haven't updated my Eclipse is because my company only uses Eclipse 4.5. So I can't accept an answer to update it.
The error log:
!ENTRY org.eclipse.core.jobs 4 2 2019-09-09 17:55:58.495
!MESSAGE An internal error occurred during: "Launching JUnitEntityDBUtility".
!STACK 0
java.lang.NullPointerException
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.localURL(JUnitLaunchConfigurationDelegate.java:429)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.entryString(JUnitLaunchConfigurationDelegate.java:418)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.addEntry(JUnitLaunchConfigurationDelegate.java:405)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.localizeClasspath(JUnitLaunchConfigurationDelegate.java:396)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate.getClasspath(JUnitLaunchConfigurationDelegate.java:373)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate.launch(JUnitLaunchConfigurationDelegate.java:147)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:885)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:739)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1039)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1256)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Delete and recreate your JUnitEntityDBUtility launch configuration.
The stack trace can be found here and here. At the second finding you will find the explanation and a workaround by Moritz Eysholdt for your issue as follows (highlighting by me):
That NPE occurs if you execute a test's launch config in an Eclipse
that does not have the plugin org.eclipse.jdt.junit4.runtime.patch
installed when the launch config was created by an Eclipse that did
actually have org.eclipse.jdt.junit4.runtime.patch installed.
Workaround: Install org.eclipse.jdt.junit4.runtime.patch via the Xpect
update site or delete+recreate your launch configuration.
[...]

Eclipse shows empty error message with Java 9

I have installed the Java 9 plugin. My project hasn't changed, but when I try to run, I get this:
If you need anything else, feel free to comment that you don't have enough info.
My .log file: https://pastebin.com/SQXZVcQk

Seems like a configuration issue as per my understanding. There are two possible causes/solution to it:
From the logs:
Root exception:
java.lang.ExceptionInInitializerError
at com.jniwrapper.util.ProcessorInfo.b(SourceFile:95)
Caused by: com.jniwrapper.LibraryNotFoundException: Cannot find JNIWrapper native library (jniwrap64.dll) in java.library.path:
Eclipse is not able to configure the java.library.path properly, in which case you can try setting the VM argument using the following on the command line:
-Djava.library.path="${workspace_loc:project}\lib;${env_var:PATH}"
Check out How to add native library to "java.library.path" with Eclipse launch (instead of overriding it) for further details and platform specific solutions.
&& make sure you include the path to jdk-9 early access build that should ideally be a must for the plugin used based out of Java9.
Also, the log reads
!ENTRY org.eclipse.ui 4 0 2017-08-27 09:22:31.358
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.ArrayIndexOutOfBoundsException: -1
at es.org.chemi.games.snake.ui.GameField.createGameField(GameField.java:217)
at es.org.chemi.games.snake.ui.GameField$1.controlResized(GameField.java:99)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:236)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4428)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079)
For the pertaining code, you might want to look into the implementation of
createGameField at GameField.java:217. If this wasn't specifically occurring on previous java version for you then solving (1) should get rid of this or else you might want to give the solutions at Eclipse Bug: Unhandled event loop exception No more handles a try.

On receiving the same error in eclipse I fixed it by selecting this option instead of the default (highlighted by the red arrow in the snapshot)

Lombok Eclipse issue: "Requesting Java AST from selection"

I have Lombok plugin installed in my Eclipse. It was working fine till now since many days. All of a sudden I am frequently getting a popup in my Eclipse with the following details:
An error has occurred. See error log for more details.
lombok/launch/PatchFixesHider$PatchFixes
An internal error occurred during: "Requesting Java AST from selection".
lombok/launch/PatchFixesHider$PatchFixes
The Eclipse error log has this:
!ENTRY org.eclipse.ui.workbench 4 2 2016-08-29 13:18:38.631
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.lang.LinkageError: lombok/launch/PatchFixesHider$PatchFixes
at org.eclipse.jdt.internal.ui.search.OccurrencesFinder.addUsage(OccurrencesFinder.java)
at org.eclipse.jdt.internal.ui.search.OccurrencesFinder.visit(OccurrencesFinder.java:158)
at org.eclipse.jdt.core.dom.QualifiedName.accept0(QualifiedName.java:168)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2711)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2759)
at org.eclipse.jdt.core.dom.PackageDeclaration.accept0(PackageDeclaration.java:225)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2711)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2759)
Eclipse version :
Eclipse Java EE IDE for Web Developers.
Version: Neon Release (4.6.0)
Build id: 20160613-1800
This popup is occurring quite frequently and its very annoying.Does anyone knows the solution to fix this?

Removed older jar and updated with latest lombok jar (version 1.16.10).. restarted my system. this fixed this issue. Not sure what was the cause of this issue though.

Had the same issue, restarting Eclipse was sufficient for me.

SonarQube Eclipse integration throwing NoSuchMethodError on Synchronize Issues

My maven project is properly associated with the project on our Sonar server. When I try to use the Eclipse "Analyze Project" option, it brings up a Problem Occurred window with
"'Synchronize issues' has encountered a problem.
An internal error occurred during: "Synchronize issues".
The details dropdown has
An internal error occurred during: "Synchronize issues".
org.apache.commons.lang.StringUtils.defaultIfBlank(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
If I look in the Eclipse log, I see
!ENTRY org.eclipse.core.jobs 4 2 2015-07-13 14:07:23.716
!MESSAGE An internal error occurred during: "Synchronize issues".
!STACK 0
java.lang.NoSuchMethodError: org.apache.commons.lang.StringUtils.defaultIfBlank(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
at org.sonar.ide.eclipse.core.internal.jobs.AnalyseProjectJob.(AnalyseProjectJob.java:88)
at org.sonar.ide.eclipse.core.internal.jobs.SynchronizeAllIssuesJob.scheduleIncrementalAnalysis(SynchronizeAllIssuesJob.java:100)
at org.sonar.ide.eclipse.core.internal.jobs.SynchronizeAllIssuesJob.run(SynchronizeAllIssuesJob.java:79)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Strangely enough, I installed the plugin on another machine today and Analyze Project works fine. Any ideas what could be causing this?