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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 >>>>> >>>> >>
