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 /* Soot - a J*va Optimization Framework
  * Copyright (C) 2003 Ondrej Lhotak
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
package soot.options;
import java.util.*;

Option parser for Null Pointer Checker.
public class NPCOptions
    private Map options;
    public NPCOptionsMap options ) {
        this. = options;
Enabled -- .
    public boolean enabled() {
        return soot.PhaseOptions.getBoolean"enabled" );
Only Array Ref -- Annotate only array references. Annotate only array-referencing instructions, instead of all instructions that need null pointer checks.
    public boolean only_array_ref() {
        return soot.PhaseOptions.getBoolean"only-array-ref" );
Profiling -- Insert instructions to count safe pointer accesses. Insert profiling instructions that at runtime count the number of eliminated safe null pointer checks. The inserted profiling code assumes the existence of a MultiCounter class implementing the methods invoked. For details, see the NullPointerChecker source code.
    public boolean profiling() {
        return soot.PhaseOptions.getBoolean"profiling" );
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