367046 – StackOverflowError in Egl2MofStatement

Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.

Bug 367046 - StackOverflowError in Egl2MofStatement

Summary: StackOverflowError in Egl2MofStatement

Status:	CLOSED FIXED

Alias:	None

Product:	z_Archived
Classification:	Eclipse Foundation
Component:	EDT (show other bugs)
Version:	unspecified
Hardware:	PC Windows XP

Importance:	P2 major (vote)
Target Milestone:	---
Assignee:	Project Inbox
QA Contact:

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2011-12-18 22:19 EST by Will Smythe
Modified:	2017-02-23 14:15 EST (History)
CC List:	4 users (show)

See Also:

Attachments
EGL source file that appears to be causing stack overflow (11.75 KB, application/octet-stream) 2011-12-18 22:19 EST, Will Smythe	no flags	Details
Workspace log file (832.93 KB, application/octet-stream) 2011-12-18 22:20 EST, Will Smythe	no flags	Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Will Smythe

2011-12-18 22:19:38 EST

Created attachment 208529 [details]
EGL source file that appears to be causing stack overflow

See attached EGL source file,which contains a lot of errors. When trying to edit/save this file in EWDT 0.7, I get a popup dialog that indicates there is a StackOverflowError. This bug may be related to bug 367045. 

java.lang.StackOverflowError
	at java.lang.Exception.<init>(Unknown Source)
	at java.lang.reflect.InvocationTargetException.<init>(Unknown Source)
	at sun.reflect.GeneratedConstructorAccessor175.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
	at java.lang.reflect.Constructor.newInstance(Unknown Source)
	at java.lang.Class.newInstance0(Unknown Source)
	at java.lang.Class.newInstance(Unknown Source)v
	at org.eclipse.edt.compiler.internal.egl2mof.Egl2MofStatement.getGeneratorFor(Egl2MofStatement.java:784)
	at org.eclipse.edt.compiler.internal.egl2mof.Egl2MofStatement.visit(Egl2MofStatement.java:514)
	at org.eclipse.edt.compiler.core.ast.GetByPositionStatement.accept(GetByPositionStatement.java:340)
	at org.eclipse.edt.compiler.internal.egl2mof.AbstractIOStatementGenerator.genGetByPositionStatement(AbstractIOStatementGenerator.java:126)
	at org.eclipse.edt.compiler.internal.egl2mof.Egl2MofStatement.visit(Egl2MofStatement.java:515)
	at org.eclipse.edt.compiler.core.ast.GetByPositionStatement.accept(GetByPositionStatement.java:340)
	at org.eclipse.edt.compiler.internal.egl2mof.AbstractIOStatementGenerator.genGetByPositionStatement(AbstractIOStatementGenerator.java:126)
	at org.eclipse.edt.compiler.internal.egl2mof.Egl2MofStatement.visit(Egl2MofStatement.java:515)
	at org.eclipse.edt.compiler.core.ast.GetByPositionStatement.accept(GetByPositionStatement.java:340)
	at org.eclipse.edt.compiler.internal.egl2mof.AbstractIOStatementGenerator.genGetByPositionStatement(AbstractIOStatementGenerator.java:126)
	at org.eclipse.edt.compiler.internal.egl2mof.Egl2MofStatement.visit(Egl2MofStatement.java:515)
	at org.eclipse.edt.compiler.core.ast.GetByPositionStatement.accept(GetByPositionStatement.java:340)
	at org.eclipse.edt.compiler.internal.egl2mof.AbstractIOStatementGenerator.genGetByPositionStatement(AbstractIOStatementGenerator.java:126)
	at org.eclipse.edt.compiler.internal.egl2mof.Egl2MofStatement.visit(Egl2MofStatement.java:515)

Comment 1 Will Smythe

2011-12-18 22:20:19 EST

Created attachment 208530 [details]
Workspace log file

Comment 2 Will Smythe

2011-12-28 10:25:06 EST

I am seeing this same error/exception in the all-in-one 0.7 IDE.

Comment 3 Paul Harmon

2012-01-17 14:09:52 EST

The problem was caused by the presence of a GetByPosition statement in the testcase. Since this type of statement is not supported by the sql dataSource, the statement generator didnt know what to do with it, so it threw it into an infinite loop.

I have added a validator for this statement, so that an error is thrown that indicates that this type of GET statement is not allowed. I also fixed the IR generator to not go into an infinite loop. 

The following files have been updated:

	IProblemRequestor
	EGLValidationResource.properties
	FunctionValidator
	MoveStatementValidator
	AbstractIOStatementGenerator
	EGL2MofStatement
	IOStatementGenerator
	SQLActionStatementGenerator
	SQLActionStatementValidator
	GetByPositionStatementValidator
	SqlFactory
	SqlFactoryImpl

Comment 4 Will Smythe

2012-02-21 08:02:02 EST

Verified.