Hey, now I see the problem - I had (somehow?!?) managed to copy the JAR file rather than the NAR file
> On 7 Nov 2017, at 5:17 am, Phil H <gippyp...@gmail.com> wrote: > > Thanks Bryan, > > This new NAR does not appear in the extensions directory (my other working > ones do). > > As for your second question > > [phil@localhost JSONCondenser]$ ls ~/nifi-1.3.0/lib/ | grep jar > javax.servlet-api-3.1.0.jar > jcl-over-slf4j-1.7.25.jar > jetty-schemas-3.1.jar > jul-to-slf4j-1.7.25.jar > log4j-over-slf4j-1.7.25.jar > logback-classic-1.2.3.jar > logback-core-1.2.3.jar > nifi-api-1.3.0.jar > nifi-framework-api-1.3.0.jar > nifi-JSONCondenser-processors-0.1.jar > nifi-nar-utils-1.3.0.jar > nifi-properties-1.3.0.jar > nifi-runtime-1.3.0.jar > slf4j-api-1.7.25.jar > > >> On 7 Nov 2017, at 5:13 am, Bryan Bende <bbe...@gmail.com> wrote: >> >> Thanks for the poms. >> >> Can you provide the output of listing >> NIFI_HOME/work/nar/extensions/<your-nar>.nar-unpacked/META-INF/bundled-dependencies/ >> ? >> >> and also the output of listing JARs that are in NiFi's lib directory? >> ls -l NIFI_HOME/lib/ | grep jar >> >> Want to verify that nifi-utils JAR is actually in your NAR and also >> that no other unexpected JARs are in your lib directory. >> >> Thanks, >> >> Bryan >> >> On Mon, Nov 6, 2017 at 12:48 PM, Phil H <gippyp...@gmail.com> wrote: >>> ./pom.xml (Note that this issue occurred BEFORE I added the external JAR >>> dependency, and I have that exact same org.json dependency in a bunch of >>> other processors I have written without issue) >>> >>> <project xmlns="http://maven.apache.org/POM/4.0.0"; >>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >>> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 >>> http://maven.apache.org/xsd/maven-4.0.0.xsd";> >>> <modelVersion>4.0.0</modelVersion> >>> >>> <parent> >>> <groupId>org.apache.nifi</groupId> >>> <artifactId>nifi-nar-bundles</artifactId> >>> <version>1.3.0</version> >>> </parent> >>> >>> <repositories> >>> <repository> >>> <id>project.local</id> >>> <name>projects</name> >>> <url>file:${project.basedir}/repo</url> >>> </repository> >>> </repositories> >>> >>> <groupId>com.jidmu</groupId> >>> <artifactId>JSONCondenser</artifactId> >>> <version>0.1</version> >>> <packaging>pom</packaging> >>> >>> <modules> >>> <module>nifi-JSONCondenser-processors</module> >>> <module>nifi-JSONCondenser-nar</module> >>> </modules> >>> >>> <dependencies> >>> <dependency> >>> <groupId>org.json</groupId> >>> <artifactId>JSON</artifactId> >>> <version>1.0</version> >>> </dependency> >>> </dependencies> >>> >>> </project> >>> >>> >>> >>> ./nifi-JSONCondenser-processors/pom.xml >>> <project xmlns="http://maven.apache.org/POM/4.0.0"; >>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >>> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 >>> http://maven.apache.org/xsd/maven-4.0.0.xsd";> >>> <modelVersion>4.0.0</modelVersion> >>> >>> <parent> >>> <groupId>com.jidmu</groupId> >>> <artifactId>JSONCondenser</artifactId> >>> <version>0.1</version> >>> </parent> >>> >>> <artifactId>nifi-JSONCondenser-processors</artifactId> >>> <packaging>jar</packaging> >>> >>> <dependencies> >>> <dependency> >>> <groupId>org.apache.nifi</groupId> >>> <artifactId>nifi-api</artifactId> >>> </dependency> >>> <dependency> >>> <groupId>org.apache.nifi</groupId> >>> <artifactId>nifi-utils</artifactId> >>> </dependency> >>> <dependency> >>> <groupId>org.apache.nifi</groupId> >>> <artifactId>nifi-mock</artifactId> >>> <scope>test</scope> >>> </dependency> >>> <dependency> >>> <groupId>org.slf4j</groupId> >>> <artifactId>slf4j-simple</artifactId> >>> <scope>test</scope> >>> </dependency> >>> <dependency> >>> <groupId>junit</groupId> >>> <artifactId>junit</artifactId> >>> <scope>test</scope> >>> </dependency> >>> </dependencies> >>> </project> >>> >>> ./nifi-JSONCondenser-nar/pom.xml >>> <project xmlns="http://maven.apache.org/POM/4.0.0"; >>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >>> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 >>> http://maven.apache.org/xsd/maven-4.0.0.xsd";> >>> <modelVersion>4.0.0</modelVersion> >>> >>> <parent> >>> <groupId>com.jidmu</groupId> >>> <artifactId>JSONCondenser</artifactId> >>> <version>0.1</version> >>> </parent> >>> >>> <artifactId>nifi-JSONCondenser-nar</artifactId> >>> <version>0.1</version> >>> <packaging>nar</packaging> >>> <properties> >>> <maven.javadoc.skip>true</maven.javadoc.skip> >>> <source.skip>true</source.skip> >>> </properties> >>> >>> <dependencies> >>> <dependency> >>> <groupId>com.jidmu</groupId> >>> <artifactId>nifi-JSONCondenser-processors</artifactId> >>> <version>0.1</version> >>> </dependency> >>> </dependencies> >>> >>> </project> >>> >>> >>> >>>> On 7 Nov 2017, at 4:39 am, Bryan Bende <bbe...@gmail.com> wrote: >>>> >>>> It is most likely an issue with the Maven configuration in one of your >>>> modules. >>>> >>>> Can you share your project, or the pom files for the processors, NAR, >>>> and bundle? >>>> >>>> Thanks, >>>> >>>> Bryan >>>> >>>> >>>> On Mon, Nov 6, 2017 at 12:20 PM, Phil H <gippyp...@gmail.com> wrote: >>>>> Nifi version is 1.3.0, running on Java 1.8.0_131, running on a >>>>> out-of-the-box CentOS (if that’s relevant) >>>>> >>>>>> On 7 Nov 2017, at 4:17 am, Phil H <gippyp...@gmail.com> wrote: >>>>>> >>>>>> I added the StandardValidators reference back in and the original error >>>>>> reoccurs. The offending code (which compiles fine using the same JDK) >>>>>> is totally standard stuff: >>>>>> >>>>>> public static final PropertyDescriptor ID_PATH = new PropertyDescriptor >>>>>> .Builder().name("ID_PATH") >>>>>> .displayName("JSON ID Path") >>>>>> .description("The path to the JSON attribute that represents the >>>>>> unique ID for the object") >>>>>> .addValidator(StandardValidators.NON_BLANK_VALIDATOR) >>>>>> .required(true) >>>>>> .build(); >>>>>> >>>>>> >>>>>> 2017-11-07 04:13:46,855 ERROR [main] org.apache.nifi.NiFi Failure to >>>>>> launch NiFi due to java.util.ServiceConfigurationError: >>>>>> org.apache.nifi.processor.Processor: Provider >>>>>> com.jidmu.processors.JSONCondenser.JSONCondenser could not be >>>>>> instantiated >>>>>> java.util.ServiceConfigurationError: >>>>>> org.apache.nifi.processor.Processor: Provider >>>>>> com.jidmu.processors.JSONCondenser.JSONCondenser could not be >>>>>> instantiated >>>>>> at java.util.ServiceLoader.fail(ServiceLoader.java:232) >>>>>> at java.util.ServiceLoader.access$100(ServiceLoader.java:185) >>>>>> at >>>>>> java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384) >>>>>> at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404) >>>>>> at java.util.ServiceLoader$1.next(ServiceLoader.java:480) >>>>>> at >>>>>> org.apache.nifi.nar.ExtensionManager.loadExtensions(ExtensionManager.java:138) >>>>>> at >>>>>> org.apache.nifi.nar.ExtensionManager.discoverExtensions(ExtensionManager.java:104) >>>>>> at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:699) >>>>>> at org.apache.nifi.NiFi.<init>(NiFi.java:160) >>>>>> at org.apache.nifi.NiFi.main(NiFi.java:267) >>>>>> Caused by: java.lang.NoClassDefFoundError: >>>>>> org/apache/nifi/processor/util/StandardValidators >>>>>> at >>>>>> com.jidmu.processors.JSONCondenser.JSONCondenser.<clinit>(JSONCondenser.java:58) >>>>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native >>>>>> Method) >>>>>> at >>>>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) >>>>>> at >>>>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) >>>>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:423) >>>>>> at java.lang.Class.newInstance(Class.java:442) >>>>>> at >>>>>> java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380) >>>>>> ... 7 common frames omitted >>>>>> Caused by: java.lang.ClassNotFoundException: >>>>>> org.apache.nifi.processor.util.StandardValidators >>>>>> at java.net.URLClassLoader.findClass(URLClassLoader.java:381) >>>>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:424) >>>>>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) >>>>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:357) >>>>>> ... 14 common frames omitted >>>>>> >>>>>> >>>>>>> On 7 Nov 2017, at 4:02 am, Joe Witt <joe.w...@gmail.com> wrote: >>>>>>> >>>>>>> Can you share the code by chance for a review? Otherwise, you'll want >>>>>>> to add a debugger at runtime and examine the context classloader as it >>>>>>> goes through to see where it goes wonky. >>>>>>> >>>>>>> What version are you on? >>>>>>> >>>>>>> Thanks >>>>>>> >>>>>>> On Mon, Nov 6, 2017 at 11:58 AM, Phil H <gippyp...@gmail.com> wrote: >>>>>>>> Hi guys, >>>>>>>> >>>>>>>> I have just (today) started having issues with a new processor I've >>>>>>>> written where a seemingly random class (e.g.: StandardValidators) >>>>>>>> fails to load when NiFi is initializing. I've created this processor >>>>>>>> like all my others (using the maven archetype) and the VM I'm running >>>>>>>> it on has not changed versions of any software. >>>>>>>> >>>>>>>> I removed any reference to StandardValidators, and the NAR then loaded >>>>>>>> successfully. As I added some more functionality, I then had the same >>>>>>>> ClassNotFoundException occur with a different random class. >>>>>>>> >>>>>>>> Because I have used the maven archetype, all my other processors >>>>>>>> obviously use StandardValidators, so it's not like the class itself is >>>>>>>> somehow corrupted. This feels like either a NiFi or maybe even JVM bug >>>>>>>> (or other issue that is surfacing as this ClassNotFoundException). >>>>>>>> >>>>>>>> Pulling my hair out here - would love some help! >>>>>>>> >>>>>>>> Cheers, >>>>>>>> Phil >>>>>> >>>>> >>> >
