Eclipse freezes while showing hover suggestions like method suggestions in class, method info etc

Question

When I enter a dot operator after entering the class name, Eclipse will show method suggestions auto complete, at that time Eclipse hangs and gets closed automatically.

It also happens when showing method info. Can someone help with this?

When I checked Eclipse log, I saw these exceptions

eclipse.buildId=4.13.0.I20190916-1045
java.version=1.8.0_312
java.vendor=Private Build
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_IN
Framework arguments:  -product org.eclipse.epp.package.jee.product
Command-line arguments:  -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.jee.product

!ENTRY org.brainwy.liclipsetext.editor 4 0 2022-05-13 14:48:14.576
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Could not resolve module: org.brainwy.liclipsetext.editor [93]
  Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=11))"
  Unresolved requirement: Require-Bundle: org.brainwy.liclipsetext.shared_core; bundle-version="[2.3.0,2.3.1)"
    -> Bundle-SymbolicName: org.brainwy.liclipsetext.shared_core; bundle-version="2.3.0.202104291051"
       org.brainwy.liclipsetext.shared_core [94]
         Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=11))"
  Unresolved requirement: Require-Bundle: org.brainwy.liclipsetext.shared_ui
    -> Bundle-SymbolicName: org.brainwy.liclipsetext.shared_ui; bundle-version="2.3.0.202104291051"; singleton:="true"
       org.brainwy.liclipsetext.shared_ui [95]
         Unresolved requirement: Require-Bundle: org.brainwy.liclipsetext.shared_core; bundle-version="[2.3.0,2.3.1)"
           -> Bundle-SymbolicName: org.brainwy.liclipsetext.shared_core; bundle-version="2.3.0.202104291051"

    at org.eclipse.osgi.container.Module.start(Module.java:462)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$2.run(ModuleContainer.java:1844)
    at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$2$1.execute(EquinoxContainerAdaptor.java:150)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1837)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1778)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1742)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1664)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:345)

!ENTRY org.brainwy.liclipsetext.shared_core 4 0 2022-05-13 14:48:14.579
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Could not resolve module: org.brainwy.liclipsetext.shared_core [94]
  Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=11))"

    at org.eclipse.osgi.container.Module.start(Module.java:462)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$2.run(ModuleContainer.java:1844)
    at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$2$1.execute(EquinoxContainerAdaptor.java:150)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1837)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1778)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1742)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1664)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:345)

!ENTRY org.brainwy.liclipsetext.shared_ui 4 0 2022-05-13 14:48:14.580
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Could not resolve module: org.brainwy.liclipsetext.shared_ui [95]
  Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=11))"
  Unresolved requirement: Require-Bundle: org.brainwy.liclipsetext.shared_core; bundle-version="[2.3.0,2.3.1)"
    -> Bundle-SymbolicName: org.brainwy.liclipsetext.shared_core; bundle-version="2.3.0.202104291051"
       org.brainwy.liclipsetext.shared_core [94]
         Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=11))"

    at org.eclipse.osgi.container.Module.start(Module.java:462)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$2.run(ModuleContainer.java:1844)
    at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$2$1.execute(EquinoxContainerAdaptor.java:150)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1837)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1778)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1742)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1664)
    at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:345)

Answer 1

Thanks @greg-449 for your comment.

The errors say that you have installed a plug-in which requires at least Java 11 but you are using Java 8 on Eclipse 2019-09 (4.13) which is now 3 years and 10 releases old. Try running on the current Eclipse 2022-03 (4.23).

It resolved after uninstalling the plugin which requires at least Java 11