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https://issues.apache.org/jira/browse/NIFI-4685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16620807#comment-16620807
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Imre commented on NIFI-4685:
----------------------------
So, looking at the source, in my case starting Java on the command-line from
the {{C:\Program Files\NiFi}} directory also does not work, because
{{/nifi-bootstrap/src/main/java/org/apache/nifi/bootstrap/RunNiFi.java}} makes
the assumption that the second up parent dir of the bootstrap config file will
be the root (the "workingDir") of all things NiFi. Which in my case is also not
true, as I'm putting the configuration files in a different directory...
{{public void start() throws IOException, InterruptedException {}}
{{...}}
{{final File bootstrapConfigAbsoluteFile =
bootstrapConfigFile.getAbsoluteFile();}}
{{final File binDir = bootstrapConfigAbsoluteFile.getParentFile();}}
{{final File workingDir = binDir.getParentFile();}}
{{...}}
{{}}}
> Hardcoded path when creating Bootstrap ClassLoader in Nifi
> ----------------------------------------------------------
>
> Key: NIFI-4685
> URL: https://issues.apache.org/jira/browse/NIFI-4685
> Project: Apache NiFi
> Issue Type: Bug
> Components: Configuration, Core Framework
> Affects Versions: 1.4.0
> Environment: Windows 7, JRE 1.8.0_144
> Reporter: Sorin Florea
> Priority: Minor
> Labels: easyfix, usability, windows
>
> Found a hardcoded path to {{lib/bootstrap}} in
> [org.apache.nifi.NiFi|https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-runtime/src/main/java/org/apache/nifi/NiFi.java#L3]
> class when calling {{createBootstrapClassLoader()}} :
> {code:java}
> private static ClassLoader createBootstrapClassLoader() throws IOException {
> //Get list of files in bootstrap folder
> final List<URL> urls = new ArrayList<>();
> Files.list(Paths.get({color:red}_"lib/bootstrap"_{color})).forEach(p
> -> {
> try {
> urls.add(p.toUri().toURL());
> } catch (final MalformedURLException mef) {
> LOGGER.warn("Unable to load " + p.getFileName() + " due to "
> + mef, mef);
> }
> });
> //Create the bootstrap classloader
> return new URLClassLoader(urls.toArray(new URL[0]),
> Thread.currentThread().getContextClassLoader());
> }
> {code}
> There are multiple places where the {{.\lib}} directory is defined:
> * {{BOOTSTRAP_LIBS}} or {{%LIB_DIR%}} environment variables in {{nifi.sh}} or
> {{run-nifi.bat}}
> * {{lib.dir}} in {{bootstrap.conf}} is most likely it
> * {{nifi.nar.library.directory}} or {{nifi.web.war.directory}} identify the
> library folder but don't quite refer to the bootstrap
> Perhaps using {{lib.dir}} in {{bootstrap.conf}} or create a new
> {{lib.bootstrap.dir}} property.
> Using different library folders would allow configuring multiple instances of
> Nifi using the same resource. I managed changing the properties and
> environment variables above to point to a common {{lib}} directory but this
> harcoded prevented {{run-nifi.bat}} to run successfully. {{dump-nifi.bat}}
> and {{status-nifi.bat}} ran without issue.
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