Index: build.xml
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- build.xml	(date 1511643656000)
+++ build.xml	(revision )
@@ -1772,10 +1772,11 @@
       encoding="UTF-8"
       docencoding="UTF-8"
       charset="UTF-8"
+      source="${compile.source}"
       additionalparam="-breakiterator -notimestamp"
       maxmemory="512m"
       failonerror="true"
-      failonwarning="true">
+      failonwarning="false">
       <classpath>
         <path refid="compile.classpath"/>
         <path refid="tomcat.webservices.classpath"/>
@@ -1793,10 +1794,11 @@
       encoding="UTF-8"
       docencoding="UTF-8"
       charset="UTF-8"
+      source="${compile.source}"
       additionalparam="-breakiterator -notimestamp"
       maxmemory="512m"
       failonerror="true"
-      failonwarning="true">
+      failonwarning="false">
       <classpath>
         <path refid="compile.classpath"/>
         <path refid="tomcat.webservices.classpath"/>
@@ -1814,10 +1816,11 @@
       encoding="UTF-8"
       docencoding="UTF-8"
       charset="UTF-8"
+      source="${compile.source}"
       additionalparam="-breakiterator -notimestamp"
       maxmemory="512m"
       failonerror="true"
-      failonwarning="true">
+      failonwarning="false">
       <classpath>
         <path refid="compile.classpath"/>
         <path refid="tomcat.webservices.classpath"/>
@@ -1835,10 +1838,11 @@
       encoding="UTF-8"
       docencoding="UTF-8"
       charset="UTF-8"
+      source="${compile.source}"
       additionalparam="-breakiterator -notimestamp"
       maxmemory="512m"
       failonerror="true"
-      failonwarning="true">
+      failonwarning="false">
       <classpath>
         <path refid="compile.classpath"/>
         <path refid="tomcat.webservices.classpath"/>
@@ -1855,10 +1859,11 @@
       encoding="UTF-8"
       docencoding="UTF-8"
       charset="UTF-8"
-      additionalparam="-breakiterator -notimestamp ${java9.add.modules}"
+      source="${compile.source}"
+      additionalparam="-breakiterator -notimestamp"
       maxmemory="512m"
       failonerror="true"
-      failonwarning="true">
+      failonwarning="false">
       <classpath>
         <path refid="compile.classpath"/>
         <path refid="tomcat.webservices.classpath"/>
@@ -1868,9 +1873,6 @@
       <link href="../jspapi"/>
       <link href="../elapi"/>
       <link href="../websocketapi"/>
-      <link href="http://docs.oracle.com/javase/8/docs/api/"/>
-      <link href="http://commons.apache.org/proper/commons-io/javadocs/api-release/"/>
-      <link href="https://javaee.github.io/javaee-spec/javadocs/"/>
       <packageset dir="${tomcat.dist}/src/java/">
         <include name="org/**"/>
         <exclude name="org/apache/el/parser/**"/>