Checkstyle: force package-info.java for all packages

ect/checkstyle-suppressions.xml

@@ -5,14 +5,18 @@
 	<!-- Suppress formatting warnings of auto-generated code -->
 	<suppress files="[\\/]src-generated[\\/]"
 		checks="(.*Whitespace.*|MethodParamPad|LineLength|LeftCurly|SeparatorWrap)" />
+	<!-- The generated sources are added to non-generated package in which there is package-info.java -->
+	<suppress files="[\\/]src-generated[\\/]"
+		checks="(JavadocPackage)" />
+
 
 	<!-- No need for javadoc for com.jgalgo.internal.** -->
 	<suppress files="com[\\/]jgalgo[\\/]internal[\\/]"
-		checks="(MissingJavadocMethod|MissingJavadocType)" />
+		checks="(MissingJavadocMethod|MissingJavadocType|JavadocPackage)" />
 
 	<!-- Benchmarks are not released, suppress a lot of checks -->
 	<suppress files="com[\\/]jgalgo[\\/]bench[\\/]"
-		checks="(MissingJavadocMethod|MissingJavadocType|MethodName)" />
+		checks="(MissingJavadocMethod|MissingJavadocType|MethodName|JavadocPackage)" />
 	<!-- Completely ignore JMH generated sources -->
 	<suppress files="[\\/]jmh_generated[\\/]" checks="[a-zA-Z0-9]*" />
 

ect/checkstyle.xml

@@ -23,6 +23,10 @@
     <!-- See http://checkstyle.sf.net/config_misc.html#NewlineAtEndOfFile -->
     <module name="NewlineAtEndOfFile"/>
 
+    <!-- Checks that a package-info.java file exists for each package.     -->
+    <!-- See http://checkstyle.sf.net/config_javadoc.html#JavadocPackage -->
+    <module name="JavadocPackage"/>
+
 	<module name="LineLength">
 		<property name="fileExtensions" value="java" />
 		<property name="max" value="120" />