I have inherited a large amount to F77 code which does not use IMPLICIT NONE. Is there a tool to automatically add IMPLICIT NONE and the relevant variable definitions to all the source?
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Polyhedron's SPAG can do this and more.
However, just adding declarations using a tool will not do away with the need for manual intervention to detect and remove unused variables, incorrect declarations or slightly misspelled variable names.
However, just adding declarations using a tool will not do away with the need for manual intervention to detect and remove unused variables, incorrect declarations or slightly misspelled variable names.
Hi
This is probably not "diplomatically correct" -- but check-out refactoring tools provided by Photran 6.0. You can do quite a few things including adding implicit none and removal of unused variables. Of course, no-one (including SPAG other such tools) gives 100% guarantee.
Abhi
This is probably not "diplomatically correct" -- but check-out refactoring tools provided by Photran 6.0. You can do quite a few things including adding implicit none and removal of unused variables. Of course, no-one (including SPAG other such tools) gives 100% guarantee.
Abhi
Using Visual Studio's Find in Files for entire solution for "subroutine"
Insert IMPLICIT NONE in the first appropriate file
Copy to Paste buffer
Then click on next file, look and conditionally paste.
The do the same thing for "function".
You should be able to do this in under 5 seconds per occurance.
720 subroutines/functions per hour.
Also, the walk-though may be beneficial for noticing additional conversion/maintenance issues.
I'd suggest putting comment markers in a side file (issues file)as you detect issues. Use a unique comment indicator, perhaps your nameinitials plus sequence number. Paste a copy of the new comment into the source file for use later.
The when prior issue detected simply copy and paste the comment into the file as you perform the insertion of IMPLICIT NONE.
When you have the IMPLICIT NONE pass complete, save your comments file.
I would suggest attempting a Build before addressing the additional issues in the issues file.
Note, your first issue might read"
! Ferrad 001 - Insert IMPLICIT NONE in subroutines and functions (copy and paste from following line)
IMPLICIT NONE
! Ferrad 002 - Move COMMON to Module
! Ferrad 002 - ...
and so on.
Jim
Insert IMPLICIT NONE in the first appropriate file
Copy to Paste buffer
Then click on next file, look and conditionally paste.
The do the same thing for "function".
You should be able to do this in under 5 seconds per occurance.
720 subroutines/functions per hour.
Also, the walk-though may be beneficial for noticing additional conversion/maintenance issues.
I'd suggest putting comment markers in a side file (issues file)as you detect issues. Use a unique comment indicator, perhaps your nameinitials plus sequence number. Paste a copy of the new comment into the source file for use later.
The when prior issue detected simply copy and paste the comment into the file as you perform the insertion of IMPLICIT NONE.
When you have the IMPLICIT NONE pass complete, save your comments file.
I would suggest attempting a Build before addressing the additional issues in the issues file.
Note, your first issue might read"
! Ferrad 001 - Insert IMPLICIT NONE in subroutines and functions (copy and paste from following line)
IMPLICIT NONE
! Ferrad 002 - Move COMMON to Module
! Ferrad 002 - ...
and so on.
Jim
You could also look at the fntcheck tool for Fortran 77, or the various f77 to f90 free tools.
Or write a small utility in (say) Basic to open all your .f?? files and write IMPLICIT NONE after the first PROGRAM, SUBROUTINE or FUNCTION statements - you may want to check for multi-line statements ...
Or write a small utility in (say) Basic to open all your .f?? files and write IMPLICIT NONE after the first PROGRAM, SUBROUTINE or FUNCTION statements - you may want to check for multi-line statements ...
I tried SPAG but unfortunately it does not look (consistently) inside USE'd modules for variables and inserts declarations in the SUBROUTINE as well, so I end up with vast amounts of duplicate variables.
I am not sure what you tried; perhaps you can show a small example for which your SPAG run produced duplicate variables. Secondly, modules are an extension to Fortran 77, so there is a question as to which extension of Fortran-77 you use.
Nevertheless, given the input
Nevertheless, given the input
[fortran] module mymod
integer a,b
end
c
program myprog
use mymod
a = 15
b = a+20
write(*,*)a,b
end[/fortran] the command[bash]spag 4=2 ferrad.f[/bash]produces the output (with SPAG-added comments removed)
[fxfortran] MODULE MYMOD
IMPLICIT NONE
INTEGER a , b
END
c
PROGRAM MYPROG
USE MYMOD
IMPLICIT NONE
a = 15
b = a + 20
WRITE (*,*) a , b
END[/fxfortran]
The problem appears to be caused by modules which USE other modules. Example below:
ALLMODU.FOR:
module MaxMaterialCodes
INTEGER, PARAMETER :: NNMATC = 10
end module MaxMaterialCodes
MODULE PROBOL
USE MaxMaterialCodes
INTEGER NNIN
END MODULE PROBOL
REDMATC.FOR:
SUBROUTINE REDMATC
USE PROBOL
IMPLICIT REAL(8) (A-H,O-Z)
DO 100 j = 1 , NU
DO 50 i = 1 , nnmatc
NCUmp = NCOmp+1
50 CONTINUE
100 CONTINUE
RETURN
END
SPAG *.for returns:
ALLMODU.SPG:
!*==MAXMATERIALCODES.spg processed by SPAG 6.60Dc at 13:36 on 13 Sep 2010
MODULE MAXMATERIALCODES
IMPLICIT NONE
!*--MAXMATERIALCODES4
INTEGER , PARAMETER :: NNMATC = 10
END
!*==PROBOL.spg processed by SPAG 6.60Dc at 13:36 on 13 Sep 2010
c
MODULE PROBOL
USE MAXMATERIALCODES
IMPLICIT NONE
!*--PROBOL12
INTEGER nnin
END
REDMATC.SPG:
!*==REDMATC.spg processed by SPAG 6.60Dc at 13:36 on 13 Sep 2010
C
SUBROUTINE REDMATC
USE PROBOL
IMPLICIT NONE
!*--REDMATC7
C*** Start of declarations inserted by SPAG
INTEGER i , j , ncomp , ncump , nnmatc , nu
C*** End of declarations inserted by SPAG
DO 100 j = 1 , nu
DO 50 i = 1 , nnmatc
ncump = ncomp + 1
50 CONTINUE
100 CONTINUE
RETURN
END
Note NNMATC is declared twice resulting in a compilation error.
ALLMODU.FOR:
module MaxMaterialCodes
INTEGER, PARAMETER :: NNMATC = 10
end module MaxMaterialCodes
MODULE PROBOL
USE MaxMaterialCodes
INTEGER NNIN
END MODULE PROBOL
REDMATC.FOR:
SUBROUTINE REDMATC
USE PROBOL
IMPLICIT REAL(8) (A-H,O-Z)
DO 100 j = 1 , NU
DO 50 i = 1 , nnmatc
NCUmp = NCOmp+1
50 CONTINUE
100 CONTINUE
RETURN
END
SPAG *.for returns:
ALLMODU.SPG:
!*==MAXMATERIALCODES.spg processed by SPAG 6.60Dc at 13:36 on 13 Sep 2010
MODULE MAXMATERIALCODES
IMPLICIT NONE
!*--MAXMATERIALCODES4
INTEGER , PARAMETER :: NNMATC = 10
END
!*==PROBOL.spg processed by SPAG 6.60Dc at 13:36 on 13 Sep 2010
c
MODULE PROBOL
USE MAXMATERIALCODES
IMPLICIT NONE
!*--PROBOL12
INTEGER nnin
END
REDMATC.SPG:
!*==REDMATC.spg processed by SPAG 6.60Dc at 13:36 on 13 Sep 2010
C
SUBROUTINE REDMATC
USE PROBOL
IMPLICIT NONE
!*--REDMATC7
C*** Start of declarations inserted by SPAG
INTEGER i , j , ncomp , ncump , nnmatc , nu
C*** End of declarations inserted by SPAG
DO 100 j = 1 , nu
DO 50 i = 1 , nnmatc
ncump = ncomp + 1
50 CONTINUE
100 CONTINUE
RETURN
END
Note NNMATC is declared twice resulting in a compilation error.
Hi ferrad01
Did you try Photran? Below are two sample results.
Abhi
======
Case 1:
Subroutine Test
do i=1,N
NC = NC + 1
end do
End Subroutine Test
Refactoring (Introduce Implicit None) gives
Subroutine Test
implicit none
integer :: i
integer :: n
integer :: nc
do i=1,N
NC = NC + 1
end do
End Subroutine Test
------
Case 2:
Module OM
Integer :: N
End Module OM
Subroutine Test
Use OM
do i=1,N
NC = NC + 1
end do
End Subroutine Test
Refactoring yields--
Module OM
Integer :: N
End Module OM
Subroutine Test
implicit none
integer :: i
integer :: nc
Use OM
do i=1,N
NC = NC + 1
end do
End Subroutine Test
Did you try Photran? Below are two sample results.
Abhi
======
Case 1:
Subroutine Test
do i=1,N
NC = NC + 1
end do
End Subroutine Test
Refactoring (Introduce Implicit None) gives
Subroutine Test
implicit none
integer :: i
integer :: n
integer :: nc
do i=1,N
NC = NC + 1
end do
End Subroutine Test
------
Case 2:
Module OM
Integer :: N
End Module OM
Subroutine Test
Use OM
do i=1,N
NC = NC + 1
end do
End Subroutine Test
Refactoring yields--
Module OM
Integer :: N
End Module OM
Subroutine Test
implicit none
integer :: i
integer :: nc
Use OM
do i=1,N
NC = NC + 1
end do
End Subroutine Test
Hi ferrad
Below is the result of another test and your sample.
Abhi
---
Module Water
Integer :: N
End Module Water
Module Earth
Use Water
Integer :: M
End Module Earth
Subroutine Test
Use Earth
do j=1,M
do i=1,N
NC = NC + (i+j)
end do
end do
End Subroutine Test
Reactoring gives =>
Module Water
Integer :: N
End Module Water
Module Earth
Use Water
Integer :: M
End Module Earth
Subroutine Test
Use Earth
implicit none
integer :: i
integer :: j
integer :: nc
do j=1,M
do i=1,N
NC = NC + (i+j)
end do
end do
End Subroutine Test
(In the test, if use Earth is commented out then M and N are added as well.)
====
Your sample gets refactored to =>
module MaxMaterialCodes
INTEGER, PARAMETER :: NNMATC = 10
end module MaxMaterialCodes
MODULE PROBOL
USE MaxMaterialCodes
INTEGER NNIN
END MODULE PROBOL
SUBROUTINE REDMATC
USE PROBOL
implicit none
integer :: i
integer :: j
integer :: ncomp
integer :: ncump
integer :: nu
DO 100 j = 1 , NU
DO 50 i = 1 , nnmatc
NCUmp = NCOmp+1
50 CONTINUE
100 CONTINUE
RETURN
END
Below is the result of another test and your sample.
Abhi
---
Module Water
Integer :: N
End Module Water
Module Earth
Use Water
Integer :: M
End Module Earth
Subroutine Test
Use Earth
do j=1,M
do i=1,N
NC = NC + (i+j)
end do
end do
End Subroutine Test
Reactoring gives =>
Module Water
Integer :: N
End Module Water
Module Earth
Use Water
Integer :: M
End Module Earth
Subroutine Test
Use Earth
implicit none
integer :: i
integer :: j
integer :: nc
do j=1,M
do i=1,N
NC = NC + (i+j)
end do
end do
End Subroutine Test
(In the test, if use Earth is commented out then M and N are added as well.)
====
Your sample gets refactored to =>
module MaxMaterialCodes
INTEGER, PARAMETER :: NNMATC = 10
end module MaxMaterialCodes
MODULE PROBOL
USE MaxMaterialCodes
INTEGER NNIN
END MODULE PROBOL
SUBROUTINE REDMATC
USE PROBOL
implicit none
integer :: i
integer :: j
integer :: ncomp
integer :: ncump
integer :: nu
DO 100 j = 1 , NU
DO 50 i = 1 , nnmatc
NCUmp = NCOmp+1
50 CONTINUE
100 CONTINUE
RETURN
END
It just fails when I try my full project. I get:
An unexpected exception occurred during condition checking. See the error
log for more details.
See the error log for more details
The error log is not at all helpful.
An unexpected exception occurred during condition checking. See the error
log for more details.
See the error log for more details
The error log is not at all helpful.
I apologize that I am perhaps taking too much liberty to discuss the issues not exactly related to IVF --
Ferrad01, what does it complain about? Java parsing error or something else? Do you get something like unexpected character in column 1 line 3? Is it possible to give some more details of the error log?
Abhi
Ferrad01, what does it complain about? Java parsing error or something else? Do you get something like unexpected character in column 1 line 3? Is it possible to give some more details of the error log?
Abhi
Can you post the error log?
Some tips, related to eclipse/photran, that might help:
- The latest version of eclipse tends to misbehave when installed to a read-only location ---Not sure if that might be your problem, though.
- Try increasing the maximum amount of memory java can use ---in the past, the "implicit none" feature required about 3 GB per every 5000 lines of code (not sure if that has improved).
- photran uses its own dialect of fpp (i.e., it gives errors for things Intel's fpp and GNU's cpp accept without problem), so that might complicate things.
!ENTRY org.eclipse.ltk.ui.refactoring 4 10000 2010-09-14 08:24:22.721
!MESSAGE Internal Error
!STACK 0
java.lang.reflect.InvocationTargetException
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:421)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275)
at org.eclipse.ui.internal.progress.ProgressManager$5.run(ProgressManager.java:960)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:995)
at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:970)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.checkInitialConditions(RefactoringWizardOpenOperation.java:205)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.access$0(RefactoringWizardOpenOperation.java:200)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation$1.run(RefactoringWizardOpenOperation.java:163)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:192)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:115)
at org.eclipse.rephraserengine.internal.ui.actions.RefactoringAction.run(RefactoringAction.java:140)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275)
at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1162)
at org.eclipse.ui.internal.progress.ProgressManager$RunnableWithStatus.run(ProgressManager.java:1346)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.progress.ProgressManager$7.run(ProgressManager.java:1184)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:179)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4584)
at org.eclipse.ui.internal.progress.ProgressManager.runInUI(ProgressManager.java:1182)
at org.eclipse.rephraserengine.internal.ui.actions.RefactoringAction.run(RefactoringAction.java:116)
at org.eclipse.rephraserengine.internal.ui.actions.RefactoringAction.run(RefactoringAction.java:99)
at org.eclipse.rephraserengine.ui.menus.RefactorMenu$ResourceRefactoringContributionItem$1.widgetSelected(RefactorMenu.java:282)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
Caused by: java.lang.NullPointerException
at org.eclipse.photran.internal.core.analysis.binding.BindingCollector.bind(BindingCollector.java:142)
at org.eclipse.photran.internal.core.analysis.binding.BindingCollector.bindAsParam(BindingCollector.java:162)
at org.eclipse.photran.internal.core.analysis.binding.ReferenceCollector.visitASTSubroutineStmtNode(ReferenceCollector.java:862)
at org.eclipse.photran.internal.core.parser.ASTSubroutineStmtNode.accept(ASTSubroutineStmtNode.java:95)
at org.eclipse.photran.internal.core.parser.ASTVisitor.traverseChildren(ASTVisitor.java:21)
at org.eclipse.photran.internal.core.parser.ASTVisitor.visitASTSubroutineSubprogramNode(ASTVisitor.java:359)
at org.eclipse.photran.internal.core.parser.ASTSubroutineSubprogramNode.accept(ASTSubroutineSubprogramNode.java:100)
at org.eclipse.photran.internal.core.parser.ASTVisitor.traverseChildren(ASTVisitor.java:21)
at org.eclipse.photran.internal.core.parser.ASTVisitor.visitASTListNode(ASTVisitor.java:26)
at org.eclipse.photran.internal.core.parser.ASTListNode.accept(ASTListNode.java:130)
at org.eclipse.photran.internal.core.parser.ASTVisitor.traverseChildren(ASTVisitor.java:21)
at org.eclipse.photran.internal.core.parser.ASTVisitor.visitASTExecutableProgramNode(ASTVisitor.java:176)
at org.eclipse.photran.internal.core.parser.ASTExecutableProgramNode.accept(ASTExecutableProgramNode.java:61)
at org.eclipse.photran.internal.core.FortranAST.accept(FortranAST.java:53)
at org.eclipse.photran.internal.core.analysis.binding.Binder.bind(Binder.java:55)
at org.eclipse.photran.internal.core.vpg.PhotranVPGBuilder.populateVPG(PhotranVPGBuilder.java:468)
at org.eclipse.photran.internal.core.vpg.PhotranVPGBuilder.populateVPG(PhotranVPGBuilder.java:1)
at org.eclipse.rephraserengine.core.vpg.VPG.computeEdgesAndAnnotations(VPG.java:203)
at org.eclipse.rephraserengine.core.vpg.VPG.acquireTransientAST(VPG.java:147)
at org.eclipse.rephraserengine.core.vpg.VPG.forceRecomputationOfEdgesAndAnnotations(VPG.java:292)
at org.eclipse.rephraserengine.core.vpg.eclipse.EclipseVPG.indexIfNotUpToDate(EclipseVPG.java:406)
at org.eclipse.rephraserengine.core.vpg.eclipse.EclipseVPG$WorkspaceSyncResourceVisitor.index(EclipseVPG.java:207)
at org.eclipse.rephraserengine.core.vpg.eclipse.EclipseVPG.ensureVPGIsUpToDate(EclipseVPG.java:132)
at org.eclipse.rephraserengine.core.vpg.refactoring.VPGRefactoring.checkInitialConditions(VPGRefactoring.java:63)
at org.eclipse.ltk.core.refactoring.CheckConditionsOperation.run(CheckConditionsOperation.java:83)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Root exception:
java.lang.NullPointerException
at org.eclipse.photran.internal.core.analysis.binding.BindingCollector.bind(BindingCollector.java:142)
at org.eclipse.photran.internal.core.analysis.binding.BindingCollector.bindAsParam(BindingCollector.java:162)
at org.eclipse.photran.internal.core.analysis.binding.ReferenceCollector.visitASTSubroutineStmtNode(ReferenceCollector.java:862)
at org.eclipse.photran.internal.core.parser.ASTSubroutineStmtNode.accept(ASTSubroutineStmtNode.java:95)
at org.eclipse.photran.internal.core.parser.ASTVisitor.traverseChildren(ASTVisitor.java:21)
at org.eclipse.photran.internal.core.parser.ASTVisitor.visitASTSubroutineSubprogramNode(ASTVisitor.java:359)
at org.eclipse.photran.internal.core.parser.ASTSubroutineSubprogramNode.accept(ASTSubroutineSubprogramNode.java:100)
at org.eclipse.photran.internal.core.parser.ASTVisitor.traverseChildren(ASTVisitor.java:21)
at org.eclipse.photran.internal.core.parser.ASTVisitor.visitASTListNode(ASTVisitor.java:26)
at org.eclipse.photran.internal.core.parser.ASTListNode.accept(ASTListNode.java:130)
at org.eclipse.photran.internal.core.parser.ASTVisitor.traverseChildren(ASTVisitor.java:21)
at org.eclipse.photran.internal.core.parser.ASTVisitor.visitASTExecutableProgramNode(ASTVisitor.java:176)
at org.eclipse.photran.internal.core.parser.ASTExecutableProgramNode.accept(ASTExecutableProgramNode.java:61)
at org.eclipse.photran.internal.core.FortranAST.accept(FortranAST.java:53)
at org.eclipse.photran.internal.core.analysis.binding.Binder.bind(Binder.java:55)
at org.eclipse.photran.internal.core.vpg.PhotranVPGBuilder.populateVPG(PhotranVPGBuilder.java:468)
at org.eclipse.photran.internal.core.vpg.PhotranVPGBuilder.populateVPG(PhotranVPGBuilder.java:1)
at org.eclipse.rephraserengine.core.vpg.VPG.computeEdgesAndAnnotations(VPG.java:203)
at org.eclipse.rephraserengine.core.vpg.VPG.acquireTransientAST(VPG.java:147)
at org.eclipse.rephraserengine.core.vpg.VPG.forceRecomputationOfEdgesAndAnnotations(VPG.java:292)
at org.eclipse.rephraserengine.core.vpg.eclipse.EclipseVPG.indexIfNotUpToDate(EclipseVPG.java:406)
at org.eclipse.rephraserengine.core.vpg.eclipse.EclipseVPG$WorkspaceSyncResourceVisitor.index(EclipseVPG.java:207)
at org.eclipse.rephraserengine.core.vpg.eclipse.EclipseVPG.ensureVPGIsUpToDate(EclipseVPG.java:132)
at org.eclipse.rephraserengine.core.vpg.refactoring.VPGRefactoring.checkInitialConditions(VPGRefactoring.java:63)
at org.eclipse.ltk.core.refactoring.CheckConditionsOperation.run(CheckConditionsOperation.java:83)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
