DSpace Configuration service error when using "dspace" script.
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Key: DS-875
URL: https://jira.duraspace.org/browse/DS-875
Project: DSpace
Issue Type: Bug
Components: DSpace API
Affects Versions: 1.7.1
Reporter: Kevin Van de Velde
Priority: Major
When using the dspace script (located in {dspace.dir}/bin directory) in DSpace
1.7.1 the following error will occur:
java.lang.IllegalArgumentException: Resource path
[{dspace.dir.path}/bin/dspace] does not denote a directory
at
org.springframework.core.io.support.PathMatchingResourcePatternResolver.retrieveMatchingFiles(PathMatchingResourcePatternResolver.java:563)
at
org.springframework.core.io.support.PathMatchingResourcePatternResolver.doFindMatchingFileSystemResources(PathMatchingResourcePatternResolver.java:543)
at
org.springframework.core.io.support.PathMatchingResourcePatternResolver.doFindPathMatchingFileResources(PathMatchingResourcePatternResolver.java:526)
at
org.springframework.core.io.support.PathMatchingResourcePatternResolver.findPathMatchingResources(PathMatchingResourcePatternResolver.java:342)
at
org.springframework.core.io.support.PathMatchingResourcePatternResolver.getResources(PathMatchingResourcePatternResolver.java:276)
at
org.dspace.servicemanager.config.DSpaceConfigurationService.loadInitialConfig(DSpaceConfigurationService.java:390)
at
org.dspace.servicemanager.config.DSpaceConfigurationService.<init>(DSpaceConfigurationService.java:62)
at
org.dspace.servicemanager.DSpaceKernelImpl.start(DSpaceKernelImpl.java:145)
at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:51)
This error in itself is completely harmless since it is actually a log bug,
there is an e.printstacktrace() that should have been a log.error, the
configuration service will just fail to load the dspace config files in the
jars (which is harmless since the configuration service isn't used by DSpace at
the moment).
The reason why the error is thrown lies in the configuration service, the
following method is called when attempting to retrieve .cfg files from the
classpath.
PathMatchingResourcePatternResolver patchMatcher = new
PathMatchingResourcePatternResolver();
Resource[] resources =
patchMatcher.getResources("classpath*:dspace/config-*.cfg");
>From the Spring documentation
>(http://static.springsource.org/spring/docs/2.5.x/reference/resources.html):
Please note that "classpath*:" when combined with Ant-style patterns
will only work reliably with at least one root directory before the
pattern starts, unless the actual target files reside in the file
system. This means that a pattern like "classpath*:*.xml" will not
retrieve files from the root of jar files but rather only from the
root of expanded directories. This originates from a limitation in the
JDK's ClassLoader.getResources() method which only returns file system
locations for a passed-in empty string (indicating potential roots to
search).
>From the dspace script:
FULLPATH=$CLASSPATH:$JARS:$DSPACEDIR/config
java $JAVA_OPTS -classpath $FULLPATH org.dspace.app.launcher.ScriptLauncher "$@"
Conclusion:
The problem is caused by the fact that the JDK is expecting directories or
directories with at least one subdirectory to be passed in the FULLPATH
argument when invoking Java. It is obvious that {dspace.dir}/bin/dspace
violates these requirements, causing the process to throw an exception when
trying to use this location as a directory. In order to solve this, I suggest
removing the $CLASSPATH variable from the FULLPATH argument because I do not
expect it to be of any use when running DSpace processes. I have verified the
behavior of the dspace command after removing the $CLASSPATH variable and all
processes seem to be working fine. However, in case this variable would be
required for a reason I missed, a different solution should be used. The
easiest alternative would be to properly handle the $CLASSPATH argument in
order to avoid the exception.
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