Refactor exception generation by JsonParser (#1179)

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/core/JsonParseException.java

@@ -18,14 +18,9 @@ public class JsonParseException
 {
     private static final long serialVersionUID = 2L; // 2.7
 
-    @Deprecated // since 2.7
-    public JsonParseException(String msg, JsonLocation loc) {
-        super(msg, loc, null);
-    }
-
-    @Deprecated // since 2.7
-    public JsonParseException(String msg, JsonLocation loc, Throwable root) {
-        super(msg, loc, root);
+    // @since 2.15
+    public JsonParseException(String msg) {
+        this(null, msg, null, null);
     }
 
     /**
@@ -39,27 +34,33 @@ public JsonParseException(String msg, JsonLocation loc, Throwable root) {
      * @since 2.7
      */
     public JsonParseException(JsonParser p, String msg) {
-        super(p, msg);
+        this(p, msg, _currentLocation(p), null);
     }
 
     // @since 2.7
-    public JsonParseException(JsonParser p, String msg, Throwable root) {
-        super(p, msg, root);
+    public JsonParseException(JsonParser p, String msg, Throwable rootCause) {
+        this(p, msg, _currentLocation(p), rootCause);
     }
 
     // @since 2.7
     public JsonParseException(JsonParser p, String msg, JsonLocation loc) {
-        super(p, msg, loc);
+        this(p, msg, loc, null);
     }
 
+    // Canonical constructor
     // @since 2.7
-    public JsonParseException(JsonParser p, String msg, JsonLocation loc, Throwable root) {
-        super(p, msg, loc, root);
+    public JsonParseException(JsonParser p, String msg, JsonLocation loc, Throwable rootCause) {
+        super(p, msg, loc, rootCause);
     }
 
-    // @since 2.15
-    public JsonParseException(String msg) {
-        super(msg);
+    @Deprecated // since 2.7
+    public JsonParseException(String msg, JsonLocation loc) {
+        this(null, msg, loc, null);
+    }
+
+    @Deprecated // since 2.7
+    public JsonParseException(String msg, JsonLocation loc, Throwable rootCause) {
+        this(null, msg, loc, rootCause);
     }
 
     /**

src/main/java/com/fasterxml/jackson/core/base/ParserMinimalBase.java

@@ -774,7 +774,7 @@ protected final void _throwInternal() {
     }
 
     protected final JsonParseException _constructError(String msg, Throwable t) {
-        return new JsonParseException(this, msg, t);
+        return new JsonParseException(this, msg, currentLocation(), t);
     }
 
     @Deprecated // since 2.11

src/main/java/com/fasterxml/jackson/core/exc/StreamReadException.java

@@ -26,37 +26,35 @@ public abstract class StreamReadException
      */
     protected RequestPayload _requestPayload;
 
+    // @since 2.15
+    protected StreamReadException(String msg) {
+        this(null, msg, null, null);
+    }
+
     protected StreamReadException(JsonParser p, String msg) {
-        super(msg, (p == null) ? null : p.currentLocation());
-        _processor = p;
+        this(p, msg, _currentLocation(p), null);
     }
 
-    protected StreamReadException(JsonParser p, String msg, Throwable root) {
-        super(msg, (p == null) ? null : p.currentLocation(), root);
-        _processor = p;
+    protected StreamReadException(JsonParser p, String msg, Throwable rootCause) {
+        this(p, msg, _currentLocation(p), rootCause);
     }
 
     protected StreamReadException(JsonParser p, String msg, JsonLocation loc) {
-        super(msg, loc, null);
-        _processor = p;
+        this(p, msg, loc, null);
+    }
+
+    protected StreamReadException(String msg, JsonLocation loc, Throwable rootCause) {
+        this(null, msg, loc, rootCause);
     }
 
+    // Canonical constructor
     // @since 2.13
     protected StreamReadException(JsonParser p, String msg, JsonLocation loc,
             Throwable rootCause) {
         super(msg, loc, rootCause);
         _processor = p;
     }
 
-    protected StreamReadException(String msg, JsonLocation loc, Throwable rootCause) {
-        super(msg, loc, rootCause);
-    }
-
-    // @since 2.15
-    protected StreamReadException(String msg) {
-        super(msg);
-    }
-
     /**
      * Fluent method that may be used to assign originating {@link JsonParser},
      * to be accessed using {@link #getProcessor()}.
@@ -117,4 +115,9 @@ public String getMessage() {
         }
         return msg;
     }
+
+    // @since 2.17
+    protected static JsonLocation _currentLocation(JsonParser p) {
+        return (p == null) ? null : p.currentLocation();
+    }
 }