diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovMerge.java b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovMerge.java
index b3f862ae8..306e265f6 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovMerge.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovMerge.java
@@ -160,7 +160,7 @@ public class CovMerge extends Task {
         if (home == null || !home.isDirectory()) {
             throw new BuildException("Invalid home directory. Must point to JProbe home directory");
         }
-        home = new File(home, "Coverage");
+        home = new File(home, "coverage");
         File jar = new File(home, "coverage.jar");
         if (!jar.exists()) {
             throw new BuildException("Cannot find Coverage directory: " + home);
@@ -207,16 +207,17 @@ public class CovMerge extends Task {
             // last file is the output snapshot
             pw.println(project.resolveFile(tofile.getPath()));
             pw.flush();
-            return file;
         } catch (IOException e) {
+            throw new BuildException("I/O error while writing to " + file, e);
+        } finally {
             if (fw != null) {
                 try {
                     fw.close();
                 } catch (IOException ignored) {
                 }
             }
-            throw new BuildException("I/O error while writing to " + file, e);
         }
+        return file;
     }
 
     /** create a temporary file in the current dir (For JDK1.1 support) */
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovReport.java b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovReport.java
index ed87658e2..3969f9f98 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovReport.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/CovReport.java
@@ -256,7 +256,7 @@ public class CovReport extends Task {
         if (home == null) {
             throw new BuildException("'home' attribute must be set to JProbe home directory");
         }
-        home = new File(home, "Coverage");
+        home = new File(home, "coverage");
         File jar = new File(home, "coverage.jar");
         if (!jar.exists()) {
             throw new BuildException("Cannot find Coverage directory: " + home);
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/Coverage.java b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/Coverage.java
index 0cb883926..140ac087d 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/Coverage.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/Coverage.java
@@ -297,7 +297,7 @@ public class Coverage extends Task {
         if (home == null || !home.isDirectory()) {
             throw new BuildException("Invalid home directory. Must point to JProbe home directory");
         }
-        home = new File(home, "Coverage");
+        home = new File(home, "coverage");
         File jar = new File(home, "coverage.jar");
         if (!jar.exists()) {
             throw new BuildException("Cannot find Coverage directory: " + home);
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/XMLReport.java b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/XMLReport.java
index cb54e3f51..f5e537262 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/XMLReport.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/sitraka/XMLReport.java
@@ -210,7 +210,7 @@ public class XMLReport {
         DocumentBuilder dbuilder = newBuilder();
         InputSource is = new InputSource(new FileInputStream(file));
         if (jprobeHome != null) {
-            File dtdDir = new File(jprobeHome, "Dtd");
+            File dtdDir = new File(jprobeHome, "dtd");
             is.setSystemId("file:///" + dtdDir.getAbsolutePath() + "/");
         }
         report = dbuilder.parse(is);
@@ -324,7 +324,10 @@ public class XMLReport {
         // create the class element
         Element classElem = report.createElement("class");
         classElem.setAttribute("name", classFile.getName());
-        classElem.setAttribute("source", classFile.getSourceFile());
+        // source file possibly does not exist in the bytecode
+        if ( null != classFile.getSourceFile() ){
+            classElem.setAttribute("source", classFile.getSourceFile());
+        }
         // create the cov.data elem
         Element classData = report.createElement("cov.data");
         classElem.appendChild(classData);