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https://issues.apache.org/jira/browse/CTAKES-151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13620159#comment-13620159
]
Kim Ebert commented on CTAKES-151:
----------------------------------
In my patch I convert the Out to be a local variable, but this still doesn't
allow multiple threads to do a read at the same time.
--- old/sources/gov/nih/nlm/nls/lvg/Api/LvgCmdApi.java 2013-01-09 23:10:44
+0000
+++ new/sources/gov/nih/nlm/nls/lvg/Api/LvgCmdApi.java 2013-01-10 01:05:39
+0000
@@ -43,6 +43,9 @@
public class LvgCmdApi extends SystemOption
{
// public constructor
+
+ Out out = new Out();
+
/**
* Creates an LvgCmdApi object and initiate related data (default).
* This constructor is consider as a preprocess method.
@@ -290,10 +304,10 @@
*/
public String MutateToString(String inTerm) throws Exception
{
- Out.ResetOutString();
+ out.ResetOutString();
// Process the mutation on the input term
Process(inTerm, true);
- return Out.GetOutString();
+ return out.GetOutString();
}
> LVG is not thread safe for multiple instances inside of a single JVM.
> ---------------------------------------------------------------------
>
> Key: CTAKES-151
> URL: https://issues.apache.org/jira/browse/CTAKES-151
> Project: cTAKES
> Issue Type: Sub-task
> Components: ctakes-lvg
> Affects Versions: future enhancement, 3.0-incubating, 3.1-incubating
> Reporter: Kim Ebert
> Priority: Critical
> Attachments: lvg_static_fix.patch
>
>
> The LVG library is not thread safe. It uses global variables, so between
> multiple instances, the data will become corrupted.
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