noclassdeffounderror

问题 I am trying to a message to SQS in my Java code as follows: public void pushToSQS(){ String queueURL = "https://sqs.us-east-1.amazonaws.com/205135634997/myQueue.fifo"; try { final AmazonSQS sqs = AmazonSQSClientBuilder.defaultClient(); sqs.sendMessage(new SendMessageRequest(queueURL, "test message")); } catch (final AmazonServiceException e) { log.error("Error: " + e.getMessage()); } } However at line: final AmazonSQS sqs = AmazonSQSClientBuilder.defaultClient(); I get the error: java.lang

问题 I'm just trying to write a message in database, then I have this error when I run the app As I know I already added necesary dependencies in my gradle gradle at module level, I already added Firebase Core, Firebase database and so on: dependencies { implementation fileTree(include: ['*.jar'], dir: 'libs') implementation 'com.android.support:appcompat-v7:28.0.0-rc02' implementation 'com.android.support:design:28.0.0-rc02' implementation 'com.android.support.constraint:constraint-layout:1.1.3'

问题 I'm just trying to write a message in database, then I have this error when I run the app As I know I already added necesary dependencies in my gradle gradle at module level, I already added Firebase Core, Firebase database and so on: dependencies { implementation fileTree(include: ['*.jar'], dir: 'libs') implementation 'com.android.support:appcompat-v7:28.0.0-rc02' implementation 'com.android.support:design:28.0.0-rc02' implementation 'com.android.support.constraint:constraint-layout:1.1.3'

问题 I'm trying to follow this example but when I try to compile it, I have this error: Error: Unable to initialize main class com.amazonaws.services.kinesisanalytics.aws Caused by: java.lang.NoClassDefFoundError: org/apache/flink/streaming/api/functions/source/SourceFunction The error is due this code: private static DataStream<String> createSourceFromStaticConfig(StreamExecutionEnvironment env) { Properties inputProperties = new Properties(); inputProperties.setProperty(ConsumerConfigConstants

问题 I have the following dynamodb.jar structure, where lib/ has a bunch of .jar s. All these nested .jar s are needed by com.mparnisa.dynamodb.table . From another IntelliJ project I am trying to instantiate a class within this dynamodb.jar : try { File file = new File("<path>/dynamo.jar"); URL url = file.toURI().toURL(); URL[] urls = new URL[]{url}; ClassLoader urlClassLoader = new URLClassLoader(urls); String resourceModelClassName = "com.mparnisa.dynamodb.table.ResourceModel"; Class<?>

问题 I have the following dynamodb.jar structure, where lib/ has a bunch of .jar s. All these nested .jar s are needed by com.mparnisa.dynamodb.table . From another IntelliJ project I am trying to instantiate a class within this dynamodb.jar : try { File file = new File("<path>/dynamo.jar"); URL url = file.toURI().toURL(); URL[] urls = new URL[]{url}; ClassLoader urlClassLoader = new URLClassLoader(urls); String resourceModelClassName = "com.mparnisa.dynamodb.table.ResourceModel"; Class<?>

问题 I know that this is somehow similar to this question, but the answer there doesn't seem to help me. But I am also encountering the same issue.. here's a snippet of the logs, java.lang.NoClassDefFoundError: Could not initialize class java.time.zone.ZoneRulesProvider java.time.ZoneRegion.ofId(ZoneRegion.java:120) java.time.ZoneId.of(ZoneId.java:411) java.time.ZoneId.of(ZoneId.java:359) java.time.ZoneId.of(ZoneId.java:315) java.util.TimeZone.toZoneId(TimeZone.java:556) java.time.ZoneId

问题 I know that this is somehow similar to this question, but the answer there doesn't seem to help me. But I am also encountering the same issue.. here's a snippet of the logs, java.lang.NoClassDefFoundError: Could not initialize class java.time.zone.ZoneRulesProvider java.time.ZoneRegion.ofId(ZoneRegion.java:120) java.time.ZoneId.of(ZoneId.java:411) java.time.ZoneId.of(ZoneId.java:359) java.time.ZoneId.of(ZoneId.java:315) java.util.TimeZone.toZoneId(TimeZone.java:556) java.time.ZoneId

问题 I have looked into this similar post here: NoClassDefFoundError ModelAndViewDefiningException on spring+was8.5.5.13, but it had no solutions. I have unpacked my war file, and unpacked a library within it to verify it does contain the class mentioned in the NoClassDefFoundError: spring-webmvc-4.3.6.RELEASE.jar contains org/springframework/web/servlet/ModelAndViewDefiningException.class. These are all my spring-related dependencies: lib/metrics-spring-3.1.0 2 2.jar lib/metrics-spring-3.1.0 2 3

问题 i have a simple Selenium Test Code: public static void main(String[] args) { System.setProperty("webdriver.chrome.driver", "/home/chromedriver"); WebDriver driver= new ChromeDriver(); driver.get("http://google.com"); } And i get this Error: Exception in thread "main" java.lang.NoClassDefFoundError: okhttp3/ConnectionPool | Caused by: java.lang.ClassNotFoundException: okhttp3.ConnectionPool I think the jars and Dependency are ok but i still get this Error 回答1: please check of this jars files