Consider the following where "exports" has a typo and is spelt "export":

module java.transaction {
  requires java.base;
  resuires javax.interceptor.javax.interceptor.api;
  requires public javax.enterprise.cdi.api;
  requires public java.sql;
  requires public java.rmi;
  export javax.transaction;
}

javac prints

module-info.java:2: error: '}' expected
  requires java.base;