diff --git a/java/src/processing/mode/java/JavaProblem.java b/java/src/processing/mode/java/JavaProblem.java
index 6097be42b..232063d2f 100644
--- a/java/src/processing/mode/java/JavaProblem.java
+++ b/java/src/processing/mode/java/JavaProblem.java
@@ -30,35 +30,30 @@ import processing.app.Problem;
  * according to its tab, including the original IProblem object
  */
 public class JavaProblem implements Problem {
-  /**
-   * The tab number to which the error belongs to
-   */
-  private int tabIndex;
-  /**
-   * Line number(pde code) of the error
-   */
-  private int lineNumber;
+  /** Error Message. Processed form of IProblem.getMessage() */
+  private final String message;
+
+  /** The type of error - WARNING or ERROR. */
+  private final int type;
+
+  /** The tab number the error belongs to. */
+  private final int tabIndex;
+
+  /** Line number (pde code) of the error */
+  private final int lineNumber;
 
   private int startOffset;
 
   private int stopOffset;
 
-  /**
-   * Error Message. Processed form of IProblem.getMessage()
-   */
-  private String message;
-
-  /**
-   * The type of error - WARNING or ERROR.
-   */
-  private int type;
-
   /**
    * If the error is a 'cannot find type' contains the list of suggested imports
    */
   private String[] importSuggestions;
 
-  public static final int ERROR = 1, WARNING = 2;
+  static final int ERROR = 1;
+  static final int WARNING = 2;
+
 
   public JavaProblem(String message, int type, int tabIndex, int lineNumber) {
     this.message = message;
@@ -67,17 +62,17 @@ public class JavaProblem implements Problem {
     this.lineNumber = lineNumber;
   }
 
+
   /**
-   *
    * @param iProblem - The IProblem which is being wrapped
    * @param tabIndex - The tab number to which the error belongs to
    * @param lineNumber - Line number(pde code) of the error
    * @param badCode - The code iProblem refers to.
    */
-  public static JavaProblem fromIProblem(IProblem iProblem,
-      int tabIndex, int lineNumber, String badCode) {
+  static public JavaProblem fromIProblem(IProblem iProblem, int tabIndex,
+                                         int lineNumber, String badCode) {
     int type = 0;
-    if(iProblem.isError()) {
+    if (iProblem.isError()) {
       type = ERROR;
     } else if (iProblem.isWarning()) {
       type = WARNING;
@@ -86,59 +81,69 @@ public class JavaProblem implements Problem {
     return new JavaProblem(message, type, tabIndex, lineNumber);
   }
 
+
   public void setPDEOffsets(int startOffset, int stopOffset){
     this.startOffset = startOffset;
     this.stopOffset = stopOffset;
   }
 
+
   @Override
   public int getStartOffset() {
     return startOffset;
   }
 
+
   @Override
   public int getStopOffset() {
     return stopOffset;
   }
 
+
   @Override
   public boolean isError() {
     return type == ERROR;
   }
 
+
   @Override
   public boolean isWarning() {
     return type == WARNING;
   }
 
+
   @Override
   public String getMessage() {
     return message;
   }
 
+
   @Override
   public int getTabIndex() {
     return tabIndex;
   }
 
+
   @Override
   public int getLineNumber() {
     return lineNumber;
   }
 
+
   public String[] getImportSuggestions() {
     return importSuggestions;
   }
 
+
   public void setImportSuggestions(String[] a) {
     importSuggestions = a;
   }
 
+
   @Override
   public String toString() {
     return "TAB " + tabIndex + ",LN " + lineNumber + "LN START OFF: "
         + startOffset + ",LN STOP OFF: " + stopOffset + ",PROB: "
         + message;
   }
-
 }