1 files changed, 62 insertions, 47 deletions

diff --git a/src/main/java/junit/framework/TestFailure.java b/src/main/java/junit/framework/TestFailure.java
index 6662b1f..6168b58 100644
--- a/src/main/java/junit/framework/TestFailure.java
+++ b/src/main/java/junit/framework/TestFailure.java
@@ -5,54 +5,69 @@ import java.io.StringWriter;
 
 
 /**
- * A <code>TestFailure</code> collects a failed test together with
+ * A {@code TestFailure} collects a failed test together with
  * the caught exception.
+ *
  * @see TestResult
  */
-public class TestFailure extends Object {
-	protected Test fFailedTest;
-	protected Throwable fThrownException;
-	
-
-	/**
-	 * Constructs a TestFailure with the given test and exception.
-	 */
-	public TestFailure(Test failedTest, Throwable thrownException) {
-		fFailedTest= failedTest;
-		fThrownException= thrownException;
-	}
-	/**
-	 * Gets the failed test.
-	 */
-	public Test failedTest() {
-	    return fFailedTest;
-	}
-	/**
-	 * Gets the thrown exception.
-	 */
-	public Throwable thrownException() {
-	    return fThrownException;
-	}
-	/**
-	 * Returns a short description of the failure.
-	 */
-	@Override
-	public String toString() {
-	    StringBuffer buffer= new StringBuffer();
-	    buffer.append(fFailedTest+": "+fThrownException.getMessage());
-	    return buffer.toString();
-	}
-	public String trace() {
-		StringWriter stringWriter= new StringWriter();
-		PrintWriter writer= new PrintWriter(stringWriter);
-		thrownException().printStackTrace(writer);
-		StringBuffer buffer= stringWriter.getBuffer();
-		return buffer.toString();
-	}
-	public String exceptionMessage() {
-		return thrownException().getMessage();
-	}
-	public boolean isFailure() {
-		return thrownException() instanceof AssertionFailedError;
-	}
+public class TestFailure {
+    protected Test fFailedTest;
+    protected Throwable fThrownException;
+
+    /**
+     * Constructs a TestFailure with the given test and exception.
+     */
+    public TestFailure(Test failedTest, Throwable thrownException) {
+        fFailedTest = failedTest;
+        fThrownException = thrownException;
+    }
+
+    /**
+     * Gets the failed test.
+     */
+    public Test failedTest() {
+        return fFailedTest;
+    }
+
+    /**
+     * Gets the thrown exception.
+     */
+    public Throwable thrownException() {
+        return fThrownException;
+    }
+
+    /**
+     * Returns a short description of the failure.
+     */
+    @Override
+    public String toString() {
+        return fFailedTest + ": " + fThrownException.getMessage();
+    }
+    
+    /**
+     * Returns a String containing the stack trace of the error
+     * thrown by TestFailure.
+     */
+    public String trace() {
+        StringWriter stringWriter = new StringWriter();
+        PrintWriter writer = new PrintWriter(stringWriter);
+        thrownException().printStackTrace(writer);
+        return stringWriter.toString();
+    }
+
+    /**
+     * Returns a String containing the message from the thrown exception.
+     */
+    public String exceptionMessage() {
+        return thrownException().getMessage();
+    }
+
+    /**
+     * Returns {@code true} if the error is considered a failure
+     * (i.e. if it is an instance of {@code AssertionFailedError}),
+     * {@code false} otherwise.
+     */
+    public boolean isFailure() {
+        return thrownException() instanceof AssertionFailedError;
+    }
 }
\ No newline at end of file