Cannot cast object with class 'java.lang.String' to class 'java.util.map'

Driver23,

the issue seems to relate to Groovy runtime, as nmrao pointed out earlier.

There are different places where Groovy scripts may cause the issue:

• Groovy inline scripts (in requests, properties, etc.)
• Test case/suite startup or teardown scripts
• Groovy test steps or script assertions
• Script library (directory with scripts)

Is the error a startup issue or does it relate to some of the test cases? You can debug that by executing a new simple test case without Groovy.