create global transformation that adds method - groovy

Question

I created that transformation
package org.global
import groovy.transform.CompileStatic
import org.codehaus.groovy.ast.ASTNode
import org.codehaus.groovy.ast.ClassNode
import org.codehaus.groovy.ast.ClassHelper
import org.codehaus.groovy.ast.MethodNode
import org.codehaus.groovy.ast.Parameter
import org.codehaus.groovy.control.CompilePhase
import org.codehaus.groovy.control.SourceUnit
import org.codehaus.groovy.transform.ASTTransformation
import org.codehaus.groovy.transform.GroovyASTTransformation
import org.codehaus.groovy.ast.stmt.BlockStatement
import org.codehaus.groovy.ast.stmt.ExpressionStatement
import org.codehaus.groovy.ast.expr.MethodCallExpression
import org.codehaus.groovy.ast.expr.VariableExpression
import org.codehaus.groovy.ast.expr.ConstantExpression
import org.codehaus.groovy.ast.expr.ArgumentListExpression
#CompileStatic
#GroovyASTTransformation(phase = CompilePhase.SEMANTIC_ANALYSIS)
public class SayHelloTransformation implements ASTTransformation {
public void visit(ASTNode[] astNodes, SourceUnit sourceUnit) {
BlockStatement statement = new BlockStatement()
statement.addStatement(
new ExpressionStatement (
new MethodCallExpression (
new VariableExpression("this"),
new ConstantExpression("println"),
new ArgumentListExpression(
new ConstantExpression("hello world")
)
)
)
)
MethodNode sayHelloMethod = new MethodNode(
"sayHello", 0x0001, ClassHelper.VOID_TYPE, Parameter.EMPTY_ARRAY,
ClassNode.EMPTY_ARRAY, statement
)
sourceUnit.AST.methods.add(sayHelloMethod)
}
}
I compiled it. Then I added META-INF folder with descriptor
org.global.SayHelloTransformation
So the overall structure looks like this
META-INF\
services\
org.codehaus.groovy.transform.ASTTransformation
org\
global\
SayHelloTransformation.class
SayHelloTransformation.groovy
Then I added SomeClass.groovy to the same folder as SayHelloTransformation.groovy
class SomeClass {
}
And test.groovy file
new SomeClass().sayHello()
But I got this exception
Caught: groovy.lang.MissingMethodException: No signature of method: SomeClass.sayHello() is applicable for argument types: (
) values: []
groovy.lang.MissingMethodException: No signature of method: SomeClass.sayHello() is applicable for argument types: () values
: []
at test.run(test.groovy:2)
The whole structure looks like this
META-INF\
services\
org.codehaus.groovy.transform.ASTTransformation
org\
global\
SayHelloTransformation.class
SayHelloTransformation.groovy
SomeClass.class
SomeClass.groovy
test.groovy