Adam, Yes, I'm using Java 17. Looks like I need to downgrade the Java to a previous version. Do you have any suggestions ?
Bravo! Hao Wang ________________________________ From: Adam Taft <[email protected]> Sent: Monday, November 29, 2021 1:42 PM To: [email protected] <[email protected]> Subject: Re: How to fix this problem on Windows ? Hao Wang, Are you using Java 17 by chance? This error looks suspiciously like you're running with Java 17, which NiFi doesn't (yet) support. Adam On Sat, Nov 27, 2021 at 9:36 PM Hao Wang <[email protected]<mailto:[email protected]>> wrote: Dear devs : I came across the following error (as shown in nifi-app.log) during my usage of NiFi on Windows : 2021-11-28 12:20:35,059 ERROR [main] org.apache.nifi.NiFi Failure to launch NiFi due to org.xerial.snappy.SnappyError: [FAILED_TO_LOAD_NATIVE_LIBRARY] Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @19e86461 org.xerial.snappy.SnappyError: [FAILED_TO_LOAD_NATIVE_LIBRARY] Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @19e86461 at org.xerial.snappy.SnappyLoader.injectSnappyNativeLoader(SnappyLoader.java:297) at org.xerial.snappy.SnappyLoader.load(SnappyLoader.java:227) at org.xerial.snappy.Snappy.<clinit>(Snappy.java:48) at org.apache.nifi.processors.hive.PutHiveStreaming.<clinit>(PutHiveStreaming.java:158) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:467) at org.apache.nifi.nar.StandardExtensionDiscoveringManager.getClass(StandardExtensionDiscoveringManager.java:330) at org.apache.nifi.documentation.DocGenerator.documentConfigurableComponent(DocGenerator.java:100) at org.apache.nifi.documentation.DocGenerator.generate(DocGenerator.java:65) at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:1139) at org.apache.nifi.NiFi.<init>(NiFi.java:170) at org.apache.nifi.NiFi.<init>(NiFi.java:82) at org.apache.nifi.NiFi.main(NiFi.java:331) 2021-11-28 12:20:35,060 INFO [Thread-0] org.apache.nifi.NiFi Initiating shutdown of Jetty web server... 2021-11-28 12:20:35,060 INFO [Thread-0] org.apache.nifi.NiFi Jetty web server shutdown completed (nicely or otherwise). Please let me know how to fix the error. Bravo ! Hao Wang
