langyan1022 opened a new issue #2098: Oracle JDBC error URL: https://github.com/apache/incubator-skywalking/issues/2098 Please answer these questions before submitting your issue. - Why do you submit this issue? - [X] Question or discussion - [X ] Bug - [ ] Requirement - [ ] Feature or performance improvement ___ ### Question - What do you want to know? Whether Oracle jdbc supports, which version is supported by the highest. I find apm-oracle-10.x-plugin-1.0.0 . If I use it, do I have to delete jdbc-common-plugin. ___ ### Bug - Which version of SkyWalking, OS and JRE? SkyWalking Version:6.0.0-beta OS:linux JRE:oracle 1.8 - Which company or project? - What happen? I can't see the DB information again on the Dashboard. <img width="472" alt="image" src="https://user-images.githubusercontent.com/5259422/50531903-ff963e80-0b4b-11e9-8c3d-a9e3140b1b21.png";> And can't trace any SQL statement information. When I see the log of agent(skywalking-api.log),I found this error log: `InstMethodsInter : class[class oracle.jdbc.OracleDriver] after method[connect] intercept failure java.lang.ClassCastException: oracle.jdbc.driver.T4CConnection cannot be cast to org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance at org.apache.skywalking.apm.plugin.jdbc.JDBCDriverInterceptor.afterMethod(JDBCDriverInterceptor.java:45) at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:105) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156) at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150) at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:786) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1560) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1623) at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2468)`
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