<dependency>
<groupId>javax.transaction-api,/
<artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.transaction-api,/
<artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
Tente assim:
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>javax.transaction-api</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>