XCAS operations may slow down when using command line tools
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Key: UIMA-487
URL: https://issues.apache.org/jira/browse/UIMA-487
Project: UIMA
Issue Type: Improvement
Components: InternalTools
Affects Versions: 2.1
Environment: Windows, command line tools in 'bin' folder
Reporter: Lev Kozakov
Problem description:
I run documentAnalyzer tool from command line in Win to process 500KB text file
by using a sample AE, create XMI output and view it in the built-in Java
Viewer. The tool takes about 25 sec to open the output XMI file in the viewer.
For bigger files this time may increase significantly. This happens only in
those Win machines, where WebSphere products are installed.
Problem analysis:
The setUimaClassPath.bat script creates UIMA_CLASSPATH by adding UIMA resources
to the default system CLASSPATH, which may already include 3rd party JARs (like
eglbatchgen.jar in WebSphere products) containing their own implementation of
org.xml.sax packages. Such JAR files may conflict with standard JDK runtime
JARs and slow down XCAS related operations. If I manually modify the
documentAnalyzer.bat script to use 'clear' UIMA CLASSPATH, w/o default system
CLASSPATH, my XMI file opens reasonably fast (< 2 sec).
Possible suggestions:
a) not using default system CLASSPATH in the UIMA_CLASSPATH;
b) create a tool that can identify possible CLASSPATH conflicts and form
UIMA_CLASSPATH accordingly.
-- Lev
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