Merge pull request #1043 from apache/fix/WW-5458-stack-trace

WW-5458 Replaces e.printStackTrace() with proper logger

core/src/main/java/com/opensymphony/xwork2/mock/MockObjectTypeDeterminer.java

@@ -21,6 +21,8 @@ package com.opensymphony.xwork2.mock;
 import com.opensymphony.xwork2.conversion.ObjectTypeDeterminer;
 import ognl.OgnlException;
 import ognl.OgnlRuntime;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import java.util.Map;
 
@@ -31,6 +33,8 @@ import java.util.Map;
  */
 public class MockObjectTypeDeterminer implements ObjectTypeDeterminer {
 
+    private static final Logger LOG = LogManager.getLogger(MockObjectTypeDeterminer.class);
+
     private Class keyClass;
     private Class elementClass;
     private String keyProperty;
@@ -69,10 +73,9 @@ public class MockObjectTypeDeterminer implements ObjectTypeDeterminer {
     public boolean shouldCreateIfNew(Class parentClass, String property,
                                      Object target, String keyProperty, boolean isIndexAccessed) {
         try {
-            System.out.println("ognl:"+OgnlRuntime.getPropertyAccessor(Map.class)+" this:"+this);
+            LOG.info("Ognl: {} this: {}", OgnlRuntime.getPropertyAccessor(Map.class), this);
         } catch (OgnlException e) {
-            // TODO Auto-generated catch block
-            e.printStackTrace();
+            LOG.error("Call to shouldCreateIfNew has failed!", e);
         }
         return isShouldCreateIfNew();
     }

core/src/main/java/com/opensymphony/xwork2/util/ClassPathFinder.java

@@ -18,6 +18,8 @@
  */
 package com.opensymphony.xwork2.util;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.apache.struts2.StrutsException;
 
 import java.io.File;
@@ -41,6 +43,8 @@ import java.util.zip.ZipInputStream;
  */
 public class ClassPathFinder {
 
+    private static final Logger LOG = LogManager.getLogger(ClassPathFinder.class);
+
     /**
      * The String pattern to test against.
      */
@@ -106,7 +110,7 @@ public class ClassPathFinder {
                         }
                     }
                 } catch (IOException e) {
-                    e.printStackTrace();
+                    LOG.warn("Error reading zip file: {}", entry, e);
                 }
             } else {
                 Vector<String> results = checkEntries(entry.list(), entry, "");

core/src/main/java/com/opensymphony/xwork2/util/PropertiesReader.java

@@ -18,6 +18,9 @@
  */
 package com.opensymphony.xwork2.util;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
 import java.io.IOException;
 import java.io.LineNumberReader;
 import java.io.Reader;
@@ -40,6 +43,9 @@ import java.util.List;
  * </p>
  */
 public class PropertiesReader extends LineNumberReader {
+
+    private static final Logger LOG = LogManager.getLogger(PropertiesReader.class);
+
     /**
      * Stores the comment lines for the currently processed property.
      */
@@ -451,7 +457,7 @@ public class PropertiesReader extends LineNumberReader {
             return writer.toString();
         } catch (IOException ioe) {
             // this should never ever happen while writing to a StringWriter
-            ioe.printStackTrace();
+            LOG.warn("Call to unescape java string failed!", ioe);
             return null;
         }
     }

core/src/main/java/org/apache/struts2/interceptor/debugging/DebuggingInterceptor.java

@@ -203,7 +203,7 @@ public class DebuggingInterceptor extends AbstractInterceptor {
                          ServletActionContext.getResponse().getWriter()) {
                     writer.print(stack.findValue(cmd));
                 } catch (IOException ex) {
-                    ex.printStackTrace();
+                    LOG.warn("Interceptor in: {} mode has failed!", COMMAND_MODE, ex);
                 }
                 cont = false;
             } else if (BROWSER_MODE.equals(type)) {
@@ -286,7 +286,7 @@ public class DebuggingInterceptor extends AbstractInterceptor {
             printContext(writer);
             writer.close();
         } catch (IOException ex) {
-            ex.printStackTrace();
+            LOG.warn("Call to PrettyPrintWriter failed!", ex);
         }
     }