maven - java -v报错 java -version正确

Question

如题：maven打包上传项目时报错
mvn deploy
Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object
因为之前卸载过jdk，所以看看是不是jdk问题
输入java -version正确打印版本号
λ java -version
java version "1.8.0_91"
Java(TM) SE Runtime Environment (build 1.8.0_91-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.91-b15, mixed mode)

输入java -v就报错了
λ java -v
Unrecognized option: -v
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
求大神解惑~

Answer 1

In the help information given by jdk, the -v command is not found.
If you want to view version information, you can only use the -version command.

Answer 2

• Unrecognized option: Unrecognized option

Therefore, there is no -v, only -version

Answer 3

If you type java directly in the console without any parameters, the console will list all java command parameters and descriptions. You find that there is no -v parameter at all. Parameters are common to some libraries, but not to some. When you don't know whether there are parameters for this command, it is recommended that you first enter the library name to view the corresponding parameters, such as java, git, npm, etc. In the list that appears subsequently, some parameters are supported by the library command.

Answer 4

Check whether the jdk version configured in the maven configuration file setting.xml is correct.