HHH-18693 Fixed name generation for metamodel classes and sources

Author: cigaly

tooling/metamodel-generator/src/test/java/org/hibernate/processor/test/util/CompilationStatement.java

@@ -100,6 +100,9 @@ private List<File> getCompilationUnits(List<Class<?>> classesToCompile, List<Str
 	}
 
 	private String getPathToSource(Class<?> testClass) {
+		if ( testClass.isMemberClass() ) {
+			return getPathToSource( testClass.getDeclaringClass() );
+		}
 		return TestUtil.getSourceBaseDir( testClass ).getAbsolutePath() + File.separator + testClass.getName()
 				.replace( PACKAGE_SEPARATOR, File.separator ) + ".java";
 	}

tooling/metamodel-generator/src/test/java/org/hibernate/processor/test/util/TestUtil.java

@@ -351,9 +351,9 @@ public static File getMetaModelSourceFileFor(String className) {
 	}
 
 	private static String getMetaModelClassName(Class<?> clazz, boolean prefix) {
-		return prefix
-				? clazz.getPackageName() + '.' + META_MODEL_CLASS_POSTFIX + clazz.getSimpleName()
-				: clazz.getName() + META_MODEL_CLASS_POSTFIX;
+		final String packageName = clazz.getPackageName();
+		return prefix ? packageName + '.' + META_MODEL_CLASS_POSTFIX + clazz.getSimpleName()
+				: packageName + clazz.getName().substring( packageName.length() ).replace( '$', '_' ) + META_MODEL_CLASS_POSTFIX;
 	}
 
 	private static String getMetaModelClassName(String className) {