Author: markt
Date: Thu Jan 11 21:06:44 2018
New Revision: 1820932

URL: http://svn.apache.org/viewvc?rev=1820932&view=rev
Log:
Fix https://bz.apache.org/bugzilla/show_bug.cgi?id=43925
Add a new system property 
(org.apache.jasper.runtime.BodyContentImpl.BUFFER_SIZE) to control the size of 
the buffer used by Jasper when buffering tag bodies.

Modified:
    tomcat/trunk/java/org/apache/jasper/runtime/BodyContentImpl.java
    tomcat/trunk/webapps/docs/changelog.xml
    tomcat/trunk/webapps/docs/config/systemprops.xml

Modified: tomcat/trunk/java/org/apache/jasper/runtime/BodyContentImpl.java
URL: 
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/jasper/runtime/BodyContentImpl.java?rev=1820932&r1=1820931&r2=1820932&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/jasper/runtime/BodyContentImpl.java (original)
+++ tomcat/trunk/java/org/apache/jasper/runtime/BodyContentImpl.java Thu Jan 11 
21:06:44 2018
@@ -40,7 +40,12 @@ import org.apache.jasper.Constants;
 public class BodyContentImpl extends BodyContent {
 
     private static final boolean LIMIT_BUFFER =
-        
Boolean.parseBoolean(System.getProperty("org.apache.jasper.runtime.BodyContentImpl.LIMIT_BUFFER",
 "false"));
+            Boolean.parseBoolean(System.getProperty(
+                    "org.apache.jasper.runtime.BodyContentImpl.LIMIT_BUFFER", 
"false"));
+
+    private static final int TAG_BUFFER_SIZE =
+            
Integer.getInteger("org.apache.jasper.runtime.BodyContentImpl.BUFFER_SIZE",
+                    Constants.DEFAULT_TAG_BUFFER_SIZE).intValue();
 
     private char[] cb;
     private int nextChar;
@@ -57,7 +62,7 @@ public class BodyContentImpl extends Bod
      */
     public BodyContentImpl(JspWriter enclosingWriter) {
         super(enclosingWriter);
-        cb = new char[Constants.DEFAULT_TAG_BUFFER_SIZE];
+        cb = new char[TAG_BUFFER_SIZE];
         bufferSize = cb.length;
         nextChar = 0;
         closed = false;
@@ -512,8 +517,8 @@ public class BodyContentImpl extends Bod
             throw new IOException();
         } else {
             nextChar = 0;
-            if (LIMIT_BUFFER && (cb.length > 
Constants.DEFAULT_TAG_BUFFER_SIZE)) {
-                cb = new char[Constants.DEFAULT_TAG_BUFFER_SIZE];
+            if (LIMIT_BUFFER && (cb.length > TAG_BUFFER_SIZE)) {
+                cb = new char[TAG_BUFFER_SIZE];
                 bufferSize = cb.length;
             }
         }

Modified: tomcat/trunk/webapps/docs/changelog.xml
URL: 
http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1820932&r1=1820931&r2=1820932&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Thu Jan 11 21:06:44 2018
@@ -45,6 +45,16 @@
   issues do not "pop up" wrt. others).
 -->
 <section name="Tomcat 9.0.4 (markt)" rtext="in development">
+  <subsection name="Jasper">
+    <changelog>
+      <add>
+        <bug>43925</bug>: Add a new system property
+        (<code>org.apache.jasper.runtime.BodyContentImpl.BUFFER_SIZE</code>) to
+        control the size of the buffer used by Jasper when buffering tag 
bodies.
+        (markt)
+      </add>
+    </changelog>
+  </subsection>
 </section>
 <section name="Tomcat 9.0.3 (markt)" rtext="release in progress">
   <subsection name="Catalina">

Modified: tomcat/trunk/webapps/docs/config/systemprops.xml
URL: 
http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/config/systemprops.xml?rev=1820932&r1=1820931&r2=1820932&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/config/systemprops.xml (original)
+++ tomcat/trunk/webapps/docs/config/systemprops.xml Thu Jan 11 21:06:44 2018
@@ -154,10 +154,17 @@
       <code>true</code> will be used.</p>
     </property>
 
+    <property name="org.apache.jasper.runtime. BodyContentImpl.BUFFER_SIZE">
+      <p>The size (in characters) to use when creating a tag buffer.</p>
+      <p>If not specified, the default value of
+      <code>org.apache.jasper.Constants.DEFAULT_TAG_BUFFER_SIZE</code> (512)
+      will be used.</p>
+    </property>
+
     <property name="org.apache.jasper.runtime. BodyContentImpl.LIMIT_BUFFER">
       <p>If <code>true</code>, any tag buffer that expands beyond
-      <code>org.apache.jasper.Constants.DEFAULT_TAG_BUFFER_SIZE</code> will be
-      destroyed and a new buffer created of the default size.</p>
+      <code>org.apache.jasper.runtime.BodyContentImpl.BUFFER_SIZE</code> will 
be
+      destroyed and a new buffer created.</p>
       <p>If not specified, the default value of <code>false</code> will be 
used.</p>
     </property>
 



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