這個問題

Caused by: java.lang.IncompatibleClassChangeError: Implementing class

很不幸，我今天也碰到了

?

直接照抄百度上的方案是無法解決的

依次檢查

①Project structure里面導入的依賴包是否重復導入

②pom.xml中導入的依賴是否重復導入

③上述①和②之間是否重復導入

④上述三條無效的情況下，我們根據報錯信息來排查:

Exception in thread "main" org.apache.flink.table.api.TableException: Could not load service provider for table factories.at org.apache.flink.table.factories.TableFactoryService.discoverFactories(TableFactoryService.java:218)at org.apache.flink.table.factories.TableFactoryService.findAllInternal(TableFactoryService.java:170)at org.apache.flink.table.factories.TableFactoryService.findAll(TableFactoryService.java:125)at org.apache.flink.table.factories.ComponentFactoryService.find(ComponentFactoryService.java:48)at org.apache.flink.table.api.internal.TableEnvironmentImpl.create(TableEnvironmentImpl.java:262)at org.apache.flink.table.api.TableEnvironment.create(TableEnvironment.java:93)at GettingStartedExample.main(GettingStartedExample.java:66) Caused by: java.util.ServiceConfigurationError: org.apache.flink.table.factories.TableFactory: Provider org.apache.flink.table.factories.csv.CsvTableFactory could not be instantiatedat 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 java.util.Iterator.forEachRemaining(Iterator.java:116)at org.apache.flink.table.factories.TableFactoryService.discoverFactories(TableFactoryService.java:214)... 6 more Caused by: java.lang.IncompatibleClassChangeError: Implementing classat java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(ClassLoader.java:763)at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)at java.net.URLClassLoader.access$100(URLClassLoader.java:73)at java.net.URLClassLoader$1.run(URLClassLoader.java:368)at java.net.URLClassLoader$1.run(URLClassLoader.java:362)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:361)at java.lang.ClassLoader.loadClass(ClassLoader.java:424)at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)at java.lang.ClassLoader.loadClass(ClassLoader.java:357)at java.lang.Class.getDeclaredConstructors0(Native Method)at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)at java.lang.Class.getConstructor0(Class.java:3075)at java.lang.Class.newInstance(Class.java:412)at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380)... 10 more

上面信息顯示，這個報錯是由于

GettingStartedExample.java:66

也就是代碼的66行引起的，66行代碼如下:

final TableEnvironment env = TableEnvironment.create(settings);

所以對應的導入依賴語句是:

import org.apache.flink.table.api.TableEnvironment;

和這個語句相關的的pom依賴是：

<dependency><groupId>org.apache.flink</groupId><artifactId>flink-table-common</artifactId><version>1.11.2</version><!--<scope>provided</scope>--> </dependency><dependency><groupId>org.apache.flink</groupId><artifactId>flink-table-planner-blink_2.11</artifactId><version>1.11.2</version> </dependency><dependency><groupId>org.apache.flink</groupId><artifactId>flink-table</artifactId><version>1.11.2</version><!--<type>pom</type>--><!--<scope>provided</scope>--> </dependency><dependency><groupId>org.apache.flink</groupId><artifactId>flink-clients_2.12</artifactId><version>1.11.2</version> </dependency><dependency><groupId>com.alibaba.blink</groupId><artifactId>flink-table_2.11</artifactId><version>blink-3.7.0</version> </dependency>

到底是哪個？

最終發現搞鬼的是這個，刪除就好了

<dependency><groupId>com.alibaba.blink</groupId><artifactId>flink-table_2.11</artifactId><version>blink-3.7.0</version> </dependency>

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