Clean up checkstyle and JavaDoc errors in core project

stratosphere-core/src/main/java/eu/stratosphere/api/common/operators/base/BulkIterationBase.java

@@ -145,7 +145,7 @@ public class BulkIterationBase<T> extends SingleInputOperator<T, T, AbstractFunc
 	}
 	
 	/**
-	 * @throws Exception
+	 * @throws InvalidProgramException
 	 */
 	public void validate() throws InvalidProgramException {
 		if (this.input == null) {

stratosphere-core/src/main/java/eu/stratosphere/api/common/typeutils/TypeComparator.java

@@ -40,7 +40,7 @@ import eu.stratosphere.core.memory.MemorySegment;
  * @see java.lang.Object#equals(Object)
  * @see java.util.Comparator#compare(Object, Object)
  * 
- * @param T The data type that the comparator works on.
+ * @param <T> The data type that the comparator works on.
  */
 public abstract class TypeComparator<T> implements Serializable {
 	
@@ -192,7 +192,7 @@ public abstract class TypeComparator<T> implements Serializable {
 
 	/**
 	 * Gets the number of bytes that the normalized key would maximally take. A value of
-	 * {@link java.lang.Integer.MAX_VALUE} is interpreted as infinite.
+	 * {@link java.lang.Integer}.MAX_VALUE is interpreted as infinite.
 	 * 
 	 * @return The number of bytes that the normalized key would maximally take.
 	 */

stratosphere-core/src/main/java/eu/stratosphere/core/memory/DataInputView.java

@@ -30,7 +30,6 @@ public interface DataInputView extends DataInput {
 	 * 
 	 * @param numBytes The number of bytes to skip.
 	 * 
-	 * @throws EOFException Thrown, when less then {@code numBytes} remain in the input.
 	 * @throws IOException Thrown, if any I/O related problem occurred such that the input could not
 	 *                     be advanced to the desired position.
 	 */

stratosphere-core/src/main/java/eu/stratosphere/core/memory/InputViewDataInputStreamWrapper.java

@@ -108,6 +108,7 @@ public class InputViewDataInputStreamWrapper implements DataInputView {
 		return in.readDouble();
 	}
 
+	@SuppressWarnings("deprecation")
 	@Override
 	public String readLine() throws IOException {
 		return in.readLine();

stratosphere-core/src/main/java/eu/stratosphere/core/memory/InputViewObjectInputStreamWrapper.java

@@ -108,6 +108,7 @@ public class InputViewObjectInputStreamWrapper implements DataInputView {
 		return in.readDouble();
 	}
 
+	@SuppressWarnings("deprecation")
 	@Override
 	public String readLine() throws IOException {
 		return in.readLine();

stratosphere-core/src/main/java/eu/stratosphere/core/memory/SeekableDataInputView.java

@@ -23,9 +23,6 @@ public interface SeekableDataInputView extends DataInputView {
 	 * Sets the read pointer to the given position.
 	 * 
 	 * @param position The new read position.
-	 * 
-	 * @throws IOException Thrown, if any I/O related problem occurred such that the input could not
-	 *                     be sought to the desired position.
 	 */
 	public void setReadPosition(long position);
 }

stratosphere-core/src/main/java/eu/stratosphere/types/NormalizableKey.java

@@ -32,11 +32,11 @@ public interface NormalizableKey<T> extends Key<T> {
 	
 	/**
 	 * Gets the maximal length of normalized keys that the data type would produce to determine
-	 * the order of instances solely by the normalized key. A value of {@link java.lang.Integer.MAX_VALUE}
+	 * the order of instances solely by the normalized key. A value of {@link java.lang.Integer}.MAX_VALUE
 	 * is interpreted as infinite. 
 	 * <p>
 	 * For example, 32 bit integers return four, while Strings (potentially unlimited in length) return
-	 * {@link java.lang.Integer.MAX_VALUE}.
+	 * {@link java.lang.Integer}.MAX_VALUE.
 	 * 
 	 * @return The maximal length of normalized keys.
 	 */

stratosphere-core/src/main/java/eu/stratosphere/types/Record.java

@@ -344,7 +344,7 @@ public final class Record implements Value, CopyableValue<Record> {
 	 * @param positions The positions of the fields to get.
 	 * @param targets The values into which the content of the fields is put.
 	 * 
-	 * @throws A NullKeyFieldException in case of a failing field read. 
+	 * @throws NullKeyFieldException in case of a failing field read.
 	 */
 	public void getFieldsIntoCheckingNull(int[] positions, Value[] targets) {
 		for (int i = 0; i < positions.length; i++) {

stratosphere-core/src/test/java/eu/stratosphere/types/RecordTest.java

@@ -16,9 +16,7 @@ package eu.stratosphere.types;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
-import java.io.DataInput;
 import java.io.DataInputStream;
-import java.io.DataOutput;
 import java.io.DataOutputStream;
 import java.io.IOException;
 import java.io.PipedInputStream;