DescriptorImpl.newInstance() is deprecated since a while and @DataBoundConstructor should be used instead.

Builders not having a @DataBoundConstructor can't be used within Extensions (e.g. BuildWrappers) a using @DataBoundConstructor itself.
Please add a @DataBoundConstructor to

• hudson.plugins.groovy.Groovy
  and
• hudson.plugins.groovy.ScriptSource

Caused by: java.lang.IllegalArgumentException: Failed to instantiate class hudson.plugins.groovy.Groovy from {"groovyName":"(Default)","kind":"hudson.plugins.groovy.Groovy$DescriptorImpl","parameters":"","properties":"","scriptParameters":"","scriptSource":

{"scriptFile":"dummy.groovy","value":"0"}

,"stapler-class":"hudson.plugins.groovy.Groovy"}
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:352)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:552)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:587)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:344)
... 40 more
Caused by: org.kohsuke.stapler.NoStaplerConstructorException: There's no @DataBoundConstructor on any constructor of class hudson.plugins.groovy.Groovy
at org.kohsuke.stapler.RequestImpl.loadConstructorParamNames(RequestImpl.java:461)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:331)

Caused by: java.lang.IllegalArgumentException: Failed to convert the scriptSource parameter of the constructor public hudson.plugins.groovy.SystemGroovy(hudson.plugins.groovy.ScriptSource,java.lang.String,java.lang.String)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:346)
... 43 more
Caused by: java.lang.IllegalArgumentException: Failed to instantiate interface hudson.plugins.groovy.ScriptSource from

{"command":"println(\"hello\")","value":"1"}

at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:352)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:552)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:344)
... 43 more
Caused by: org.kohsuke.stapler.NoStaplerConstructorException: There's no @DataBoundConstructor on any constructor of interface hudson.plugins.groovy.ScriptSource
at org.kohsuke.stapler.RequestImpl.loadConstructorParamNames(RequestImpl.java:461)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:331)

The same already had to be done for 'hudson.tasks.Shell' in the core - see http://hudson.361315.n4.nabble.com/DataBoundConstructor-td2244199.html