diff --git a/platform/util/src/com/intellij/util/io/BaseOutputReader.java b/platform/util/src/com/intellij/util/io/BaseOutputReader.java
index 3995151ba89d..b45d04e3101b 100644
--- a/platform/util/src/com/intellij/util/io/BaseOutputReader.java
+++ b/platform/util/src/com/intellij/util/io/BaseOutputReader.java
@@ -33,6 +33,7 @@ public abstract class BaseOutputReader {
   protected volatile boolean isStopped = false;
 
   private final char[] myBuffer = new char[8192];
+  private final StringBuilder myTextBuffer = new StringBuilder();
   private boolean skipLF = false;
 
   private Future<?> myFinishedFuture = null;
@@ -78,12 +79,12 @@ public abstract class BaseOutputReader {
 
   protected synchronized boolean readAvailable() throws IOException {
     char[] buffer = myBuffer;
-    StringBuilder token = new StringBuilder();
+    StringBuilder token = myTextBuffer;
+    token.setLength(0);
 
     boolean read = false;
-    while (myReader.ready()) {
-      int n = myReader.read(buffer);
-      if (n <= 0) break;
+    int n;
+    while ((n = myReader.read(buffer)) > 0) {
       read = true;
 
       for (int i = 0; i < n; i++) {