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A Java Optimization Framework
There is a newer version: 4.6.0
package soot.options;

/*-
 * #%L
 * Soot - a J*va Optimization Framework
 * %%
 * Copyright (C) 2003 Ondrej Lhotak
 * %%
 * This program 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 program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

/* THIS FILE IS AUTO-GENERATED FROM soot_options.xml. DO NOT MODIFY. */

import java.util.*;

/** Option parser for Static Inliner. */
@javax.annotation.Generated(value = "Saxonica v3.0", comments = "from soot_options.xml")
public class SIOptions {

    private Map options;

    public SIOptions(Map options) {
        this.options = options;
    }

    /**
     * Enabled
     */
    public boolean enabled() {
        return soot.PhaseOptions.getBoolean(options, "enabled");
    }

    /**
     * Reconstruct Jimple body after inlining
     * When a method with array parameters is inlined, its variables 
     * may need to be assigned different types than they had in the 
     * original method to produce compilable code. When this option is 
     * set, Soot re-runs the Jimple Body pack on each method body which 
     * has had another method inlined into it so that the typing 
     * algorithm can reassign the types.
     */
    public boolean rerun_jb() {
        return soot.PhaseOptions.getBoolean(options, "rerun-jb");
    }

    /**
     * Insert Null Checks
     * Insert, before the inlined body of the target method, a check 
     * that throws a NullPointerException if the receiver object is 
     * null. This ensures that inlining will not eliminate exceptions 
     * which would have occurred in its absence.
     */
    public boolean insert_null_checks() {
        return soot.PhaseOptions.getBoolean(options, "insert-null-checks");
    }

    /**
     * Insert Redundant Casts
     * Insert extra casts for the Java bytecode verifier. The verifier 
     * may complain if the inlined method uses this and the declared 
     * type of the receiver of the call being inlined is different from 
     * the type implementing the target method being inlined. Say, for 
     * example, that Singer is an interface declaring the sing() method 
     * and that the call graph shows that all receiver objects at a 
     * particular call site, singer.sing() (with singer declared as a 
     * Singer) are in fact Bird objects ( Bird being a class that 
     * implements Singer). The implementation of Bird.sing() may 
     * perform operations on this which are only allowed on Birds, 
     * rather than Singers. The Insert Redundant Casts option ensures 
     * that this cannot lead to verification errors, by inserting a 
     * cast of bird to the Bird type before inlining the body of 
     * Bird.sing().
     */
    public boolean insert_redundant_casts() {
        return soot.PhaseOptions.getBoolean(options, "insert-redundant-casts");
    }

    /**
     * Max Container Size
     * Determines the maximum number of Jimple statements for a 
     * container method. If a method has more than this number of 
     * Jimple statements, then no methods will be inlined into it.
     */
    public int max_container_size() {
        return soot.PhaseOptions.getInt(options, "max-container-size");
    }

    /**
     * Max Inlinee Size
     * Determines the maximum number of Jimple statements for an 
     * inlinee method. If a method has more than this number of Jimple 
     * statements, then it will not be inlined into other methods.
     */
    public int max_inlinee_size() {
        return soot.PhaseOptions.getInt(options, "max-inlinee-size");
    }

    /**
     * Expansion Factor
     * Determines the maximum allowed expansion of a method. Inlining 
     * will cause the method to grow by a factor of no more than the 
     * Expansion Factor.
     */
    public float expansion_factor() {
        return soot.PhaseOptions.getFloat(options, "expansion-factor");
    }

    public static final int allowed_modifier_changes_unsafe = 1;
    public static final int allowed_modifier_changes_safe = 2;
    public static final int allowed_modifier_changes_none = 3;

    /**
     * Allowed Modifier Changes
     * Specify which changes in visibility modifiers are allowed.
     */
    public int allowed_modifier_changes() {
        String s = soot.PhaseOptions.getString(options, "allowed-modifier-changes");
        if (s == null || s.isEmpty())
        	return allowed_modifier_changes_unsafe;
	
        if (s.equalsIgnoreCase("unsafe"))
            return allowed_modifier_changes_unsafe;
        if (s.equalsIgnoreCase("safe"))
            return allowed_modifier_changes_safe;
        if (s.equalsIgnoreCase("none"))
            return allowed_modifier_changes_none;

        throw new RuntimeException(String.format("Invalid value %s of phase option allowed-modifier-changes", s));
    }

}