Open declaration results in ClassCastException: LocalDeclaration cannot be cast to LambdaExpression #1195

Bananeweizen · 2023-06-28T09:01:21Z

Eclipse 2023-06, reproducer:

package reproducer;

import java.util.function.Predicate;

public class Reproducer {

    private final Predicate<Object> predicate =
            input -> (input instanceof String withoutThisVariableNameThereIsNoError);
}

Using F3 on "predicate" will lead to the below exception.

Removing the variable name after the instanceof check fixes the issue, therefore the root cause of the bug might be related to changes for pattern matching with instanceof.

Caused by: java.lang.ClassCastException: class org.eclipse.jdt.internal.compiler.ast.LocalDeclaration cannot be cast to class org.eclipse.jdt.internal.compiler.ast.LambdaExpression (org.eclipse.jdt.internal.compiler.ast.LocalDeclaration and org.eclipse.jdt.internal.compiler.ast.LambdaExpression are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @21a1554)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeLambdaExpression(Parser.java:9156)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.consumeLambdaExpression(SelectionParser.java:874)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeRule(Parser.java:7951)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13180)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13435)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.parse(SelectionParser.java:1665)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13392)
	at org.eclipse.jdt.internal.compiler.parser.Parser.dietParse(Parser.java:11778)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.dietParse(SelectionParser.java:1489)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:994)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:167)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:389)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:382)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter.codeResolve(SelectionConverter.java:270)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter$1CodeResolveRunnable.run(SelectionConverter.java:254)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)

EDIT: I later found another exception in the log, which might be related. However, I cannot say which piece of source triggered this one:

java.lang.ClassCastException: class org.eclipse.jdt.internal.codeassist.select.SelectionOnLocalName cannot be cast to class org.eclipse.jdt.internal.compiler.ast.LambdaExpression (org.eclipse.jdt.internal.codeassist.select.SelectionOnLocalName is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @40d0bff1; org.eclipse.jdt.internal.compiler.ast.LambdaExpression is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @21a1554)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeLambdaExpression(Parser.java:9156)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.consumeLambdaExpression(SelectionParser.java:874)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeRule(Parser.java:7951)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13180)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13435)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.parse(SelectionParser.java:1665)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13392)
	at org.eclipse.jdt.internal.compiler.parser.Parser.dietParse(Parser.java:11778)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.dietParse(SelectionParser.java:1489)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:994)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:167)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:389)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:382)
	at org.eclipse.jdt.internal.ui.text.java.hover.AbstractJavaEditorTextHover.getJavaElementsAt(AbstractJavaEditorTextHover.java:121)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.internalGetHoverInfo(JavadocHover.java:667)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo2(JavadocHover.java:663)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:163)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:130)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo2(JavaEditorTextHoverProxy.java:89)
	at org.eclipse.jface.text.TextViewerHoverManager$1.run(TextViewerHoverManager.java:155)

The text was updated successfully, but these errors were encountered:

iloveeclipse · 2023-06-28T09:43:06Z

Still in latest master, but now only with one error:

eclipse.buildId=4.29.0.I20230627-1800
java.version=17.0.6
java.vendor=Eclipse Adoptium
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments:  -product org.eclipse.sdk.ide -pluginCustomization /home/aloskuto/tmp/pluginCustomization.ini
Command-line arguments:  -product org.eclipse.sdk.ide -data /data/4x_platform_workspace/../runtime-Java_17 -dev file:/data/4x_platform_workspace/.metadata/.plugins/org.eclipse.pde.core/Java_17/dev.properties -os linux -ws gtk -arch x86_64 -consoleLog -pluginCustomization /home/aloskuto/tmp/pluginCustomization.ini

org.eclipse.jdt.ui
Error
Wed Jun 28 11:42:28 CEST 2023
Internal Error

java.lang.reflect.InvocationTargetException
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:395)
	at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:470)
	at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:230)
	at org.eclipse.ui.internal.progress.ProgressManager.lambda$26(ProgressManager.java:836)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
	at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:869)
	at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:845)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter.performForkedCodeResolve(SelectionConverter.java:261)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter.codeResolveForked(SelectionConverter.java:173)
	at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:164)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:278)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:252)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
	at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:121)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:97)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:309)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:243)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:173)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:488)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:485)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:213)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:308)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:580)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:655)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:439)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:96)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1953)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1528)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1555)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1538)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1577)
	at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:937)
	at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:4049)
	at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:931)
	at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2507)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:6883)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:6163)
	at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_do_event(Native Method)
	at org.eclipse.swt.widgets.Display.eventProc(Display.java:1597)
	at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_iteration_do(Native Method)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4514)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:643)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:550)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:171)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1459)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1432)
Caused by: java.lang.ClassCastException: class org.eclipse.jdt.internal.compiler.ast.LocalDeclaration cannot be cast to class org.eclipse.jdt.internal.compiler.ast.LambdaExpression (org.eclipse.jdt.internal.compiler.ast.LocalDeclaration and org.eclipse.jdt.internal.compiler.ast.LambdaExpression are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @30fa8a6b)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeLambdaExpression(Parser.java:9159)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.consumeLambdaExpression(SelectionParser.java:874)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeRule(Parser.java:7954)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13183)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13438)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.parse(SelectionParser.java:1665)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13395)
	at org.eclipse.jdt.internal.compiler.parser.Parser.dietParse(Parser.java:11781)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.dietParse(SelectionParser.java:1489)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:994)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:170)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:389)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:382)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter.codeResolve(SelectionConverter.java:270)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter$1CodeResolveRunnable.run(SelectionConverter.java:254)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
Root exception:
java.lang.ClassCastException: class org.eclipse.jdt.internal.compiler.ast.LocalDeclaration cannot be cast to class org.eclipse.jdt.internal.compiler.ast.LambdaExpression (org.eclipse.jdt.internal.compiler.ast.LocalDeclaration and org.eclipse.jdt.internal.compiler.ast.LambdaExpression are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @30fa8a6b)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeLambdaExpression(Parser.java:9159)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.consumeLambdaExpression(SelectionParser.java:874)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeRule(Parser.java:7954)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13183)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13438)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.parse(SelectionParser.java:1665)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13395)
	at org.eclipse.jdt.internal.compiler.parser.Parser.dietParse(Parser.java:11781)
	at org.eclipse.jdt.internal.codeassist.select.SelectionParser.dietParse(SelectionParser.java:1489)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:994)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:170)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:389)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:382)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter.codeResolve(SelectionConverter.java:270)
	at org.eclipse.jdt.internal.ui.actions.SelectionConverter$1CodeResolveRunnable.run(SelectionConverter.java:254)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)

srikanth-sankaran · 2023-06-28T12:20:16Z

I'll take a look.

srikanth-sankaran · 2023-06-29T00:40:19Z

Proving to be a popular bug

See also
https://bugs.eclipse.org/bugs/show_bug.cgi?id=573257
https://bugs.eclipse.org/bugs/show_bug.cgi?id=572975
https://bugs.eclipse.org/bugs/show_bug.cgi?id=576794
https://bugs.eclipse.org/bugs/show_bug.cgi?id=578594 and
#769
#35
#1263

jukzi · 2023-08-10T11:05:26Z

i got similar error:

java.lang.ClassCastException: class org.eclipse.jdt.internal.compiler.ast.LocalDeclaration cannot be cast to class org.eclipse.jdt.internal.compiler.ast.ForeachStatement (org.eclipse.jdt.internal.compiler.ast.LocalDeclaration and org.eclipse.jdt.internal.compiler.ast.ForeachStatement are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @6c3627c)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeEnhancedForStatement(Parser.java:3435)
	at org.eclipse.jdt.internal.compiler.parser.Parser.consumeRule(Parser.java:8471)
	at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13145)
	at org.eclipse.jdt.internal.codeassist.impl.AssistParser.parseBlockStatements(AssistParser.java:2139)
	at org.eclipse.jdt.internal.codeassist.impl.AssistParser.parseBlockStatements(AssistParser.java:1979)
	at org.eclipse.jdt.internal.codeassist.impl.Engine.parseBlockStatements(Engine.java:349)
	at org.eclipse.jdt.internal.codeassist.impl.Engine.parseBlockStatements(Engine.java:312)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:1081)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:167)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:389)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:382)
	at org.eclipse.jdt.internal.ui.text.java.hover.AbstractJavaEditorTextHover.getJavaElementsAt(AbstractJavaEditorTextHover.java:121)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.internalGetHoverInfo(JavadocHover.java:667)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo2(JavadocHover.java:663)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:163)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:130)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo2(JavaEditorTextHoverProxy.java:89)
	at org.eclipse.jface.text.TextViewerHoverManager$1.run(TextViewerHoverManager.java:155)

srikanth-sankaran · 2023-08-10T11:49:07Z

i got similar error:


java.lang.ClassCastException: class org.eclipse.jdt.internal.compiler.ast.LocalDeclaration cannot be cast to class

Is pattern matching instanceof used in the vicinity ??

jukzi · 2023-08-11T04:26:42Z

Is pattern matching instanceof used in the vicinity ??

It happens when hovering for example anything in line 99-118 of org.eclipse.jdt.internal.launching.DetectVMInstallationsJob
There is no pattern matching but an old school instanceof in line 88! The error goes away if i delete lines 88-92.

srikanth-sankaran · 2023-09-12T06:45:13Z

Is pattern matching instanceof used in the vicinity ??

It happens when hovering for example anything in line 99-118 of org.eclipse.jdt.internal.launching.DetectVMInstallationsJob There is no pattern matching but an old school instanceof in line 88! The error goes away if i delete lines 88-92.

I wish you had copied and pasted the lines involved instead of quoting line numbers! :)

I think what you encountered is pretty much the same problem as #1263 which will be fixed by #1349

I do see there is a instanceof with a pattern binding variable in line 90 in the present state of affairs.

jukzi · 2023-09-12T07:00:25Z

I wish you had copied and pasted the lines involved instead of quoting line numbers! :)

https://github.com/eclipse-jdt/eclipse.jdt.debug/blob/66e4636f7f6755a9714472a706e5c53b479c9765/org.eclipse.jdt.launching/launching/org/eclipse/jdt/internal/launching/DetectVMInstallationsJob.java#L102
hover "CANCEL_STATUS"

srikanth-sankaran · 2023-09-12T07:03:31Z

I wish you had copied and pasted the lines involved instead of quoting line numbers! :)

https://github.com/eclipse-jdt/eclipse.jdt.debug/blob/66e4636f7f6755a9714472a706e5c53b479c9765/org.eclipse.jdt.launching/launching/org/eclipse/jdt/internal/launching/DetectVMInstallationsJob.java#L102 hover "CANCEL_STATUS"

Thank you, but line 91 and 112 both have a pattern matching instanceof - In fact I don't see a "classic" instanceof at all in this file.

This is a substantial reimplementation of the code selection support for pattern matching constructs. By using auxiliary stacks to record the state of the parser and by using that state to drive the bottom up context recovery and parse tree construction, we now rebuild the parse tree to sufficient detail to ascertain liveness of pattern binding variables at the point of selection. Fixes #1195 Fixes #769 Fixes #1263 Fixes #1360 Fixes #1364 Fixes #1278 Fixes #1288 Verifies https://bugs.eclipse.org/bugs/show_bug.cgi?id=573257 Verifies https://bugs.eclipse.org/bugs/show_bug.cgi?id=572975 Verifies https://bugs.eclipse.org/bugs/show_bug.cgi?id=576794

srikanth-sankaran · 2023-11-03T07:25:58Z

The fix made here also addresses #860

…e-jdt#1349) This is a substantial reimplementation of the code selection support for pattern matching constructs. By using auxiliary stacks to record the state of the parser and by using that state to drive the bottom up context recovery and parse tree construction, we now rebuild the parse tree to sufficient detail to ascertain liveness of pattern binding variables at the point of selection. Fixes eclipse-jdt#1195 Fixes eclipse-jdt#769 Fixes eclipse-jdt#1263 Fixes eclipse-jdt#1360 Fixes eclipse-jdt#1364 Fixes eclipse-jdt#1278 Fixes eclipse-jdt#1288 Verifies https://bugs.eclipse.org/bugs/show_bug.cgi?id=573257 Verifies https://bugs.eclipse.org/bugs/show_bug.cgi?id=572975 Verifies https://bugs.eclipse.org/bugs/show_bug.cgi?id=576794

iloveeclipse added the bug Something isn't working label Jun 28, 2023

srikanth-sankaran changed the title ~~LocalDeclaration cannot be cast to LambdaExpression~~ Open declaration results in ClassCastException: LocalDeclaration cannot be cast to LambdaExpression Jun 28, 2023

srikanth-sankaran self-assigned this Jun 28, 2023

srikanth-sankaran added this to the 4.29 M1 milestone Jun 28, 2023

srikanth-sankaran mentioned this issue Jun 28, 2023

Open Declaration(F3) broken in pattern instanceof #769

Closed

srikanth-sankaran mentioned this issue Jun 29, 2023

JavaAllCompletionProposalComputer IfStatement cannot be cast to class LambdaExpression #1163

Open

This was referenced Aug 4, 2023

CCE: LocalDeclaration cannot be cast to class ForeachStatement #1263

Closed

NPE below LambdaExpression.copy() #1264

Closed

srikanth-sankaran mentioned this issue Aug 16, 2023

Open Declaration (F3) sometimes not working for "Pattern Matching for instanceof" #1288

Closed

srikanth-sankaran removed this from the 4.29 M1 milestone Aug 16, 2023

srikanth-sankaran mentioned this issue Sep 5, 2023

Code selection support for pattern matching constructs # 1195 #1349

Merged

3 tasks

This was referenced Sep 12, 2023

SelectionParser behavior erratic wrt to live pattern variables upon loop exit #1364

Closed

Wrong method redirect #1278

Closed

SelectionParser/CompletionParser miscomputes type of variable #1360

Closed

srikanth-sankaran closed this as completed in #1349 Sep 14, 2023

jukzi mentioned this issue Sep 14, 2023

ClassCastException during hover #1377

Closed

jjohnstn mentioned this issue Oct 30, 2023

Errors hovering, opening declaration, type hierarchy and call hierarchy eclipse-jdt/eclipse.jdt.ui#888

Closed

srikanth-sankaran mentioned this issue Nov 3, 2023

Field assignment to anonymous type breaks selection #860

Closed

srikanth-sankaran mentioned this issue Nov 3, 2023

Field assignment to anonymous type breaks selection #863

Closed

3 tasks

srikanth-sankaran mentioned this issue Jan 26, 2024

Parser changes for JEP 443 #1517

Merged

3 tasks

srikanth-sankaran mentioned this issue May 21, 2024

ArrayStoreException in SelectionParser.buildMoreCompletionContext #2463

Merged

3 tasks

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Open declaration results in ClassCastException: LocalDeclaration cannot be cast to LambdaExpression #1195

Open declaration results in ClassCastException: LocalDeclaration cannot be cast to LambdaExpression #1195

Bananeweizen commented Jun 28, 2023 •

edited

Loading

iloveeclipse commented Jun 28, 2023

srikanth-sankaran commented Jun 28, 2023

srikanth-sankaran commented Jun 29, 2023 •

edited

Loading

jukzi commented Aug 10, 2023

srikanth-sankaran commented Aug 10, 2023

jukzi commented Aug 11, 2023

srikanth-sankaran commented Sep 12, 2023

jukzi commented Sep 12, 2023

srikanth-sankaran commented Sep 12, 2023

srikanth-sankaran commented Nov 3, 2023

Open declaration results in ClassCastException: LocalDeclaration cannot be cast to LambdaExpression #1195

Open declaration results in ClassCastException: LocalDeclaration cannot be cast to LambdaExpression #1195

Comments

Bananeweizen commented Jun 28, 2023 • edited Loading

iloveeclipse commented Jun 28, 2023

srikanth-sankaran commented Jun 28, 2023

srikanth-sankaran commented Jun 29, 2023 • edited Loading

jukzi commented Aug 10, 2023

srikanth-sankaran commented Aug 10, 2023

jukzi commented Aug 11, 2023

srikanth-sankaran commented Sep 12, 2023

jukzi commented Sep 12, 2023

srikanth-sankaran commented Sep 12, 2023

srikanth-sankaran commented Nov 3, 2023

Bananeweizen commented Jun 28, 2023 •

edited

Loading

srikanth-sankaran commented Jun 29, 2023 •

edited

Loading