--- jsr166/build.xml	2018/03/21 23:10:39	1.269
+++ jsr166/build.xml	2018/06/22 18:55:33	1.274
@@ -104,7 +104,7 @@
     <property name="jdk@{v}.src.dir" location="${jdk@{v}.src.home}/jdk/src/share/classes"
       unless:set="have.java.base"/>
     <local name="modules"/>
-    <available property="modules" file="${jdk@{v}.home}/jmods" type="dir"/>
+    <available property="modules" file="${jdk@{v}.home}/lib/modules" type="file"/>
     <local name="boot.jar.dir"/>
     <property name="boot.jar.dir"   location="${jdk@{v}.home}/jre/lib" unless:set="modules"/>
     <path id="bootclasspath@{v}" unless:set="modules">
@@ -240,7 +240,7 @@
 
     <local name="modules"/>
     <condition property="modules">
-      <available file="${jdk@{compile-target}.home}/jmods" type="dir"/>
+      <available file="${jdk@{compile-target}.home}/lib/modules" type="file"/>
     </condition>
 
     <local name="use-doclint"/>
@@ -346,7 +346,7 @@
 
     <local name="modules"/>
     <condition property="modules">
-      <available file="${jdk@{target}.home}/jmods" type="dir"/>
+      <available file="${jdk@{target}.home}/lib/modules" type="file"/>
     </condition>
 
     <delete dir="@{workdir}/JTwork"   quiet="true"/>
@@ -492,8 +492,7 @@
       <arg value="-tag"/> <arg value="${javadoc.jls.option}"/>
       <arg value="-tag"/> <arg value="implSpec:a:Implementation Requirements:"/>
       <arg value="-tag"/> <arg value="implNote:a:Implementation Note:"/>
-<!-- @apiNote tag currently unused -->
-<!--  <arg value="-tag"/> <arg value="apiNote:a:API Note:"/> -->
+      <arg value="-tag"/> <arg value="apiNote:a:API Note:"/>
 <!-- tags added in jdk9: currently unused -->
 <!--  <arg value="-tag"/> <arg value="revised:X"/> -->
 <!--  <arg value="-tag"/> <arg value="spec:X"/> -->
@@ -1389,7 +1388,7 @@
 <!-- ==============================================================
   Experimental errorprone support - http://errorprone.info
 =================================================================== -->
-  <property name="errorprone.jar" location="${lib.dir}/error_prone_ant-2.2.0.jar"/>
+  <property name="errorprone.jar" location="${lib.dir}/error_prone_ant-2.3.1.jar"/>
   <property name="errorprone.jsr166.user.flags" value=""/>
   <property name="errorprone.jsr166.flags"
             value="-Xep:HashtableContains:OFF
@@ -1433,6 +1432,8 @@
            fork="true">
 
       <include name="**/*.java"/>
+      <!-- Needed to silence -Xep:FutureReturnValueIgnored -->
+      <compilerarg value="-J--illegal-access=permit"/>
       <compilerarg value="-XDcompilePolicy=simple"/>
       <compilerarg line="-processorpath ${errorprone.jar}"/>
       <compilerarg value="-Xplugin:ErrorProne
@@ -1455,6 +1456,8 @@
       workdir="${build.dir}"
       classes="${product.jar}">
       <javac-elements>
+        <!-- Needed to silence -Xep:FutureReturnValueIgnored -->
+        <compilerarg value="-J--illegal-access=permit"/>
         <compilerarg value="-XDcompilePolicy=simple"/>
         <compilerarg line="-processorpath ${errorprone.jar}"/>
         <compilerarg value="-Xplugin:ErrorProne
@@ -1483,6 +1486,7 @@
         <arg value="-javacoption:-Xplugin:ErrorProne
                             ${errorprone.jsr166.flags}
                             ${errorprone.jsr166.test.flags}
+                            -Xep:MultipleTopLevelClasses:WARN
                             -Xep:NonAtomicVolatileUpdate:OFF"/>
       </jtreg-elements>
     </run-jtreg-tests>