DBATGenerator.cmd throws "groovy.lang.GroovyRuntimeException: Could not find matching constructor for: org.identityconnectors.common.security.GuardedString(java.lang.String)"

Issue: 
INFO DBATGenerator: Configure the connector
Exception in thread "main" groovy.lang.GroovyRuntimeException: Could not find matching constructor for: org.identityconnectors.common.security.GuardedString(java.lang.String)
        at groovy.lang.MetaClassImpl.invokeConstructor(MetaClassImpl.java:1472)
        at groovy.lang.MetaClassImpl.invokeConstructor(MetaClassImpl.java:1388)
        at org.codehaus.groovy.runtime.callsite.MetaClassConstructorSite.callConstructor(MetaClassConstructorSite.java:46)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:52)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:192)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:200)
        at org.identityconnectors.databasetable.generator.DBATGenerator.setProperty(DBATGenerator.groovy:347)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)
        at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:361)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:66)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:155)
        at org.identityconnectors.databasetable.generator.DBATGenerator$_configure_closure1.doCall(DBATGenerator.groovy:145)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)
        at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)
        at groovy.lang.Closure.call(Closure.java:279)
        at groovy.lang.Closure.call(Closure.java:292)
        at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:1166)
        at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:1142)
        at org.codehaus.groovy.runtime.dgm$99.invoke(Unknown Source)
        at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:270)
        at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
        at org.identityconnectors.databasetable.generator.DBATGenerator.configure(DBATGenerator.groovy:141)
        at org.identityconnectors.databasetable.generator.DBATGenerator$configure.call(Unknown Source)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
        at org.identityconnectors.databasetable.generator.DBATGenerator.main(DBATGenerator.groovy:60)

Cause: 
In DBATConfiguration.groovy file password field is not commented.

      'password' : 'ABCD1234',// never provide passwords to generator

Solution:

Comment password and try to generate the connector package. You should be prompted to enter the password for the database user account.
 
// 'password' : 'ABCD1234', never provide passwords to generator