https://bugs.documentfoundation.org/show_bug.cgi?id=171570
Bug ID: 171570
Summary: Intermittent hang in headless mode during Java UNO
automation
Product: LibreOffice
Version: 26.2.1.2 release
Hardware: x86-64 (AMD64)
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: sdk
Assignee: [email protected]
Reporter: [email protected]
Description:
When executing UNO automation tasks in headless mode via Java (using
JodConverter 4.4.11), LibreOffice intermittently hangs. Once in this state, the
process remains active but becomes unresponsive to any new connection requests.
The issue occurs during a Mail Merge workflow involving a CSV database and an
ODT template.
Steps to Reproduce:
1. Start LibreOffice in headless mode with a listening socket and connect via
Java using the UNO runtime (JodConverter).
2. Execute the following sequence of operations:
- Register a new Data Source using a CSV file.
- Open a template document (ODT) containing mail merge fields.
- Modify merge field properties programmatically.
- Close the ODT document.
- Execute the Mail Merge command.
- Close/Remove the database connection.
Actual Results:
Intermittent hand of LibreOffice
Expected Results:
LibreOffice should be responsive to
Reproducible: Sometimes
User Profile Reset: No
Additional Info:
When the hang occurs, the soffice.bin process remains active in the Task
Manager, showing a constant CPU usage of approximately 6%. The process becomes
a "zombie" state where it no longer accepts incoming UNO connections, forcing a
manual kill of the process to restore service.
----
Version: 26.2.1.2 (X86_64)
Build ID: 620(Build:2)
CPU threads: 16; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Vulkan;
VCL: win
Locale: fr-FR (fr_FR); UI: fr-FR
Calc: threaded
----
Threads
0x72fc 0x0 soffice!main+0x3d4 (00007ff6`477113d4) VCL Main
0xc49c 0x1 ntdll!TppWorkerThread (00007ffb`a0e55b10)
0x914c 0x2 ntdll!TppWorkerThread (00007ffb`a0e55b10)
0xbd1c 0x3 ntdll!TppWorkerThread (00007ffb`a0e55b10)
0x1b88 0x4 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) headless ParentMonitorThread
0x9fdc 0x5 mergedlo!XMLSignatureHelper::SetStorage+0x2aedb0
(00007ffa`561b9930)
0x2cac 0x6 gdiplus!DllRefCountSafeThreadThunk (00007ffb`87bf8510)
0xe94 0x7 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) configmgrWriter
0x6240 0x8 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) PipeIPC
0xcac 0x9 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) URP Acceptor
0xc1dc 0xa combase!CRpcThreadCache::RpcWorkerThreadEntry
(00007ffb`9f2b3e80)
0x709c 0xb ntdll!TppWorkerThread (00007ffb`a0e55b10)
0x51f4 0xc ntdll!TppWorkerThread (00007ffb`a0e55b10)
0xa230 0xd msvcrt!_threadstartex (00007ffb`9f6af100)
0xafd0 0xe msvcrt!_threadstartex (00007ffb`9f6af100)
0x8ee0 0xf amdocl64!clSetKernelExecInfo+0x37990 (00007ffa`7e0f0df0)
0x5e5c 0x10 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) CMtaOleClipboard::oleThreadProc()
0x4188 0x11 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) CMtaOleClipboard::clipboardChangedNotifierThreadProc()
0x1ea4 0x12 ntdll!TppWorkerThread (00007ffb`a0e55b10)
0x92d8 0x13 ntdll!TppWorkerThread (00007ffb`a0e55b10)
0x96d4 0x14 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) SystrayThread
0xa54 0x15 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) binaryurpReader
0x3d90 0x16 ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>
(00007ffb`9e783780) DocumentEventNotifier
0x3464 0x17 amdihk64!NotifyFidelityFXGameVersion+0x37a0 (00007ffb`905d7330)
0x5594 0x18 ntdll!DbgUiRemoteBreakin (00007ffb`a0f12d60)
---
stackframe of VLC Main
[0x0] win32u!NtUserMsgWaitForMultipleObjectsEx+0x14 0xc72a58f3f8
0x7ffb9f1c4648
[0x1] combase!CCliModalLoop::BlockFn+0x110(void * * ahEvent = 0xc72a58f630,
unsigned long cEvents = 0x1, unsigned long * lpdwSignaled = 0xc72a58f638 : 0x0)
0xc72a58f400 0x7ffb9f1d78a5
[0x2] combase!ClassicSTAThreadWaitForHandles+0xa5(unsigned long dwFlags =
0x8, dwTimeout = <unavailable>, unsigned long cHandles = 0x1, void * * pHandles
= 0xc72a58f630, unsigned long * pdwIndex = 0xc72a58f638 : 0x0) 0xc72a58f490
0x7ffb9f1b127b
[0x3] combase!CoWaitForMultipleHandles+0xbb(unsigned long dwFlags = 0x8,
unsigned long dwTimeout = 0xffffffff, unsigned long cHandles = 0x1, void * *
pHandles = 0xc72a58f630, unsigned long * lpdwindex = 0xc72a58f638 : 0x0)
0xc72a58f5b0 0x7ffb6f8fa7e5
[0x4] sal3!osl_waitCondition+0x55 0xc72a58f5f0 0x7ffadcacd997
[0x5] vclplug_winlo+0xd997 0xc72a58f630 0x7ffadcacee5b
[0x6] vclplug_winlo!create_SalInstance+0xb9b 0xc72a58f660 0x7ffa54950a3b
[0x7] mergedlo!Application::Execute+0x15b 0xc72a58f690 0x7ffa54950955
[0x8] mergedlo!Application::Execute+0x75 0xc72a58f6d0 0x7ffa5350ba04
[0x9]
mergedlo!cppu::WeakImplHelper<com::sun::star::container::XChild,com::sun::star::document::XDocumentPropertiesSupplier,com::sun::star::document::XCmisDocument,com::sun::star::rdf::XDocumentMetadataAccess,com::sun::star::document::XDocumentRecovery2,com::sun::star::document::XUndoManagerSupplier,com::sun::star::document::XShapeEventBroadcaster,com::sun::star::document::XDocumentEventBroadcaster,com::sun::star::lang::XEventListener,com::sun::star::document::XEventsSupplier,com::sun::star::document::XEmbeddedScripts,com::sun::star::document::XScriptInvocationContext,com::sun::star::frame::XModel3,com::sun::star::util::XModifiable2,com::sun::star::view::XPrintable,com::sun::star::view::XPrintJobBroadcaster,com::sun::star::frame::XStorable2,com::sun::star::frame::XLoadable,com::sun::star::script::XStarBasicAccess,com::sun::star::document::XViewDataSupplier,com::sun::star::util::XCloseable,com::sun::star::datatransfer::XTransferable,com::sun::star::document::XDocumentSubStorageSupplier,com::sun::star::document::XStorageBasedDocument,com::sun::star::script::provider::XScriptProviderSupplier,com::sun::star::ui::XUIConfigurationManagerSupplier,com::sun::star::embed::XVisualObject,com::sun::star::lang::XUnoTunnel,com::sun::star::frame::XModule,com::sun::star::frame::XTitle,com::sun::star::frame::XTitleChangeBroadcaster,com::sun::star::frame::XUntitledNumbers>::acquire+0x8bc4
0xc72a58f700 0x7ffa54964312
[0xa] mergedlo!ImplSVMain+0x62 0xc72a58f930 0x7ffa5352daac
[0xb] mergedlo!soffice_main+0x2cc 0xc72a58f960 0x7ff64771101b
[0xc] soffice!main+0x1b 0xc72a58fa70 0x7ff6477112d4
[0xd] soffice!main+0x2d4 0xc72a58faa0 0x7ffb9ec6e8d7
[0xe] KERNEL32!BaseThreadInitThunk+0x17 0xc72a58fae0 0x7ffba0e6c48c
[0xf] ntdll!RtlUserThreadStart+0x2c 0xc72a58fb10 0x0
----
stack frame of binaryurpReader
[0x0] vclplug_winlo!dtrans_CWinClipboard_get_implementation+0x3b880
0xc736e5e978 0x7ffa545d3cf8
[0x1] mergedlo!vcl::Window::GetOutDev+0x1ad8 0xc736e5e980 0x7ffa546d0b28
[0x2] mergedlo!OutputDevice::HasMirroredGraphics+0x18 0xc736e5e9b0
0x7ffa545d5dcc
[0x3] mergedlo!vcl::Window::ImplPosSizeWindow+0x38c 0xc736e5e9e0
0x7ffa544c1b72
[0x4] mergedlo!vcl::Window::ImplCalcSymbolRect+0x55c2 0xc736e5eb20
0x7ffa545cb531
[0x5] mergedlo!vcl::Window::queue_resize+0x121 0xc736e5eba0
0x7ffa545cb3a9
[0x6] mergedlo!vcl::Window::SetOutputSizePixel+0xc9 0xc736e5ebf0
0x7ffa545cb44c
[0x7] mergedlo!vcl::Window::queue_resize+0x3c 0xc736e5ec20 0x7ffa545d864c
[0x8] mergedlo!vcl::Window::Show+0x12c 0xc736e5ec70 0x7ffa545d85e1
[0x9] mergedlo!vcl::Window::Show+0xc1 0xc736e5ed20 0x7ffa545d1663
[0xa] mergedlo!vcl::Window::dispose+0x603 0xc736e5edd0 0x7ffa544d77fe
[0xb] mergedlo!VclBuilder::disposeBuilder+0x6e 0xc736e5ee80
0x7ffa544d7685
[0xc] mergedlo!VclBuilder::~VclBuilder+0x25 0xc736e5eed0 0x7ffa549175fe
[0xd] mergedlo!SalInstanceWidget::draw+0x23d5e 0xc736e5ef00
0x7ffa54912bcd
[0xe] mergedlo!SalInstanceWidget::draw+0x1f32d 0xc736e5ef40
0x7ffa54648f51
[0xf] mergedlo!InterimItemWindow::dispose+0x61 0xc736e5ef70
0x7ffa53ec1cce
[0x10] mergedlo!ColorWindow::SelectEntry+0x5abe 0xc736e5efb0
0x7ffa52a12e2e
[0x11]
mergedlo!com_sun_star_comp_framework_ThesaurusMenuController_get_implementation+0x6a1e
0xc736e5f020 0x7ffa52a12068
[0x12]
mergedlo!com_sun_star_comp_framework_ThesaurusMenuController_get_implementation+0x5c58
0xc736e5f0c0 0x7ffa52a2818f
[0x13]
mergedlo!com_sun_star_comp_framework_ThesaurusMenuController_get_implementation+0x1bd7f
0xc736e5f190 0x7ffa52923b1e
[0x14]
mergedlo!com_sun_star_comp_framework_LayoutManager_get_implementation+0x544e
0xc736e5f230 0x7ffa529224f2
[0x15]
mergedlo!com_sun_star_comp_framework_LayoutManager_get_implementation+0x3e22
0xc736e5f2a0 0x7ffa52912b46
[0x16]
mergedlo!com_sun_star_comp_framework_JobExecutor_get_implementation+0x5d36
0xc736e5f2d0 0x7ffa529618bb
[0x17] mergedlo!framework_DispatchHelper_get_implementation+0x7ebb
0xc736e5f410 0x7ffa5295d9cc
[0x18] mergedlo!framework_DispatchHelper_get_implementation+0x3fcc
0xc736e5f490 0x7ffa5295e09d
[0x19] mergedlo!framework_DispatchHelper_get_implementation+0x469d
0xc736e5f560 0x7ffa53493c4f
[0x1a] mergedlo!SfxFrame::DoClose+0x5f 0xc736e5f620 0x7ffa534cfc55
[0x1b] mergedlo!SfxViewFrame::Notify+0x18f5 0xc736e5f670 0x7ffa536d4cf9
[0x1c] mergedlo!SfxBroadcaster::Broadcast+0x59 0xc736e5f7e0
0x7ffa533cf966
[0x1d] mergedlo!SfxFilter::IsEnabled+0xa36 0xc736e5f810 0x7ffa533f3542
[0x1e] mergedlo!SfxBaseModel::close+0x202 0xc736e5f850 0x7ffa76ce13f0
[0x1f] swlo!SwXTextDocument::close+0x150 0xc736e5f900 0x7ffa76cccdf0
[0x20] swlo!SwXMailMerge_get_implementation+0x700 0xc736e5f940
0x7ffa76ccdd63
[0x21] swlo!SwXMailMerge_get_implementation+0x1673 0xc736e5f970
0x7ffa76ccdbfd
[0x22] swlo!SwXMailMerge_get_implementation+0x150d 0xc736e5f9a0
0x7ffb71c5835e
[0x23] mscx_uno!uno_ext_getMapping+0x2d4e 0xc736e5f9d0 0x7ffb584cd7f1
[0x24] cppu3!uno_Environment_isValid+0x3821 0xc736e5fa00 0x7ffb584c9bca
[0x25] cppu3!uno_getCurrentEnvironment+0xa5a 0xc736e5fa70 0x7ffb584c9f16
[0x26] cppu3!uno_Environment_invoke+0x46 0xc736e5fb00 0x7ffb53ef0d24
[0x27] binaryurplo+0x10d24 0xc736e5fb50 0x7ffb53ef0dea
[0x28] binaryurplo+0x10dea 0xc736e5fb80 0x7ffb53ef0dcf
[0x29] binaryurplo+0x10dcf 0xc736e5fbb0 0x7ffb53ef0dcf
[0x2a] binaryurplo+0x10dcf 0xc736e5fbe0 0x7ffb53ef0dcf
[0x2b] binaryurplo+0x10dcf 0xc736e5fc10 0x7ffb53ee5bf3
[0x2c] binaryurplo+0x5bf3 0xc736e5fc40 0x7ffb53f0b7f7
[0x2d]
binaryurplo!com_sun_star_comp_bridge_BridgeFactory_get_implementation+0x142c7
0xc736e5fd30 0x7ffb88cb2e81
[0x2e] salhelper3MSC!salhelper::Thread::run+0x31 0xc736e5fe50
0x7ffb88cb2ac8
[0x2f] salhelper3MSC!salhelper::SimpleReferenceObject::operator delete+0xaf8
0xc736e5fe90 0x7ffb6f91e1d8
[0x30] sal3!osl_getTempDirURL+0x3d8 0xc736e5fec0 0x7ffb9e7837b0
[0x31] ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>+0x30()
0xc736e5fef0 0x7ffb9ec6e8d7
[0x32] KERNEL32!BaseThreadInitThunk+0x17 0xc736e5ff20 0x7ffba0e6c48c
[0x33] ntdll!RtlUserThreadStart+0x2c 0xc736e5ff50 0x0
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