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https://issues.apache.org/jira/browse/NIFI-4685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16620727#comment-16620727
]
Imre commented on NIFI-4685:
----------------------------
I just bumped into the same issue. In my case, I'm running on Windows, I
created my own batch file to start NiFi, with the lib directory of NiFi being
installed in {{c:\Program Files\NiFi}}, and all generated files (logs, internal
DB, etc.) pointed to {{C:\ProgramData\NiFi}}. I happened to start the batch
file from somewhere other than the NiFi root dir in {{C:\Program Files\NiFi}},
and I got the following exception (due to the above code):
{{2018-09-19 09:30:25,895 INFO [main] org.apache.nifi.NiFi Launching NiFi...}}
{{2018-09-19 09:30:25,906 ERROR [main] org.apache.nifi.NiFi Failure to launch
NiFi due to java.nio.file.NoSuchFileException: lib\bootstrap}}
{{java.nio.file.NoSuchFileException: lib\bootstrap}}
{{at
sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:79)}}
{{at
sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)}}
{{at
sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)}}
{{at sun.nio.fs.WindowsDirectoryStream.<init>(WindowsDirectoryStream.java:86)}}
{{at
sun.nio.fs.WindowsFileSystemProvider.newDirectoryStream(WindowsFileSystemProvider.java:518)}}
{{at java.nio.file.Files.newDirectoryStream(Files.java:457)}}
{{at java.nio.file.Files.list(Files.java:3451)}}
{{at org.apache.nifi.NiFi.createBootstrapClassLoader(NiFi.java:197)}}
{{at
org.apache.nifi.NiFi.convertArgumentsToValidatedNiFiProperties(NiFi.java:299)}}
{{at org.apache.nifi.NiFi.main(NiFi.java:291)}}
> 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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