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Avoid OOM with incorrect property sizes
Add allocation check to verify size >= 0 and < 1mio Also reformat code to match general coding style Fixes https://issues.oss-fuzz.com/issues/485091380
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@ -33,6 +33,7 @@ public class TestSlideIdListing extends BaseTestPPTIterating {
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-5306877435838464.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-5306877435838464.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6360479850954752.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6360479850954752.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6028723156746240.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6028723156746240.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-4983252485210112.ppt");
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}
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}
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@Test
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@Test
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@ -33,6 +33,7 @@ public class TestSlideShowRecordDumper extends BaseTestPPTIterating {
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static {
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static {
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6360479850954752.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6360479850954752.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6028723156746240.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6028723156746240.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-4983252485210112.ppt");
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}
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}
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@Test
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@Test
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@ -32,6 +32,7 @@ public class TestUserEditAndPersistListing extends BaseTestPPTIterating {
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static {
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static {
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6360479850954752.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6360479850954752.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6028723156746240.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6028723156746240.ppt");
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LOCAL_EXCLUDED.add("clusterfuzz-testcase-minimized-POIHSLFFuzzer-4983252485210112.ppt");
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}
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}
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@Test
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@Test
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@ -23,6 +23,7 @@ import java.util.Map;
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import java.util.function.Supplier;
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import java.util.function.Supplier;
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import org.apache.poi.util.GenericRecordUtil;
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import org.apache.poi.util.GenericRecordUtil;
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import org.apache.poi.util.IOUtils;
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import org.apache.poi.util.LittleEndian;
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import org.apache.poi.util.LittleEndian;
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/**
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/**
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@ -30,6 +31,9 @@ import org.apache.poi.util.LittleEndian;
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* {@link EscherTertiaryOptRecord}
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* {@link EscherTertiaryOptRecord}
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*/
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*/
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public abstract class AbstractEscherOptRecord extends EscherRecord {
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public abstract class AbstractEscherOptRecord extends EscherRecord {
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// arbitrary limit, can be adjusted if it turns out to be too low
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private static final int MAX_PROPERTY_SIZE = 1_000_000;
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private final List<EscherProperty> properties = new ArrayList<>();
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private final List<EscherProperty> properties = new ArrayList<>();
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protected AbstractEscherOptRecord() {}
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protected AbstractEscherOptRecord() {}
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@ -39,21 +43,17 @@ public abstract class AbstractEscherOptRecord extends EscherRecord {
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properties.addAll(other.properties);
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properties.addAll(other.properties);
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}
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}
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/**
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/**
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* Add a property to this record.
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* Add a property to this record.
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*
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*
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* @param prop the escher property to add
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* @param prop the escher property to add
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*/
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*/
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public void addEscherProperty( EscherProperty prop )
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public void addEscherProperty( EscherProperty prop ) {
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{
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properties.add( prop );
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properties.add( prop );
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}
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}
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@Override
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@Override
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public int fillFields( byte[] data, int offset,
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public int fillFields( byte[] data, int offset, EscherRecordFactory recordFactory ) {
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EscherRecordFactory recordFactory )
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{
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int bytesRemaining = readHeader( data, offset );
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int bytesRemaining = readHeader( data, offset );
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if (bytesRemaining < 0) {
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if (bytesRemaining < 0) {
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throw new IllegalStateException("Invalid value for bytesRemaining: " + bytesRemaining);
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throw new IllegalStateException("Invalid value for bytesRemaining: " + bytesRemaining);
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@ -72,8 +72,7 @@ public abstract class AbstractEscherOptRecord extends EscherRecord {
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*
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*
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* @return the list of properties
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* @return the list of properties
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*/
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*/
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public List<EscherProperty> getEscherProperties()
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public List<EscherProperty> getEscherProperties() {
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{
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return properties;
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return properties;
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}
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}
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@ -83,26 +82,23 @@ public abstract class AbstractEscherOptRecord extends EscherRecord {
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* @param index the ordinal index of the property
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* @param index the ordinal index of the property
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* @return the escher property
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* @return the escher property
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*/
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*/
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public EscherProperty getEscherProperty( int index )
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public EscherProperty getEscherProperty( int index ) {
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{
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return properties.get( index );
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return properties.get( index );
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}
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}
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private int getPropertiesSize() {
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private int getPropertiesSize()
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{
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int totalSize = 0;
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int totalSize = 0;
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for ( EscherProperty property : properties )
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for ( EscherProperty property : properties ) {
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{
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int propertySize = property.getPropertySize();
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totalSize += property.getPropertySize();
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IOUtils.safelyAllocateCheck(propertySize, MAX_PROPERTY_SIZE);
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totalSize += propertySize;
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}
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}
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return totalSize;
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return totalSize;
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}
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}
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@Override
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@Override
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public int getRecordSize()
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public int getRecordSize() {
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{
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return 8 + getPropertiesSize();
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return 8 + getPropertiesSize();
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}
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}
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@ -116,9 +112,7 @@ public abstract class AbstractEscherOptRecord extends EscherRecord {
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}
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}
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@Override
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@Override
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public int serialize( int offset, byte[] data,
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public int serialize( int offset, byte[] data, EscherSerializationListener listener ) {
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EscherSerializationListener listener )
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{
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listener.beforeRecordSerialize( offset, getRecordId(), this );
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listener.beforeRecordSerialize( offset, getRecordId(), this );
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LittleEndian.putShort( data, offset, getOptions() );
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LittleEndian.putShort( data, offset, getOptions() );
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@ -70,8 +70,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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*
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*
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* @see #fillFields(byte[], int, org.apache.poi.ddf.EscherRecordFactory)
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* @see #fillFields(byte[], int, org.apache.poi.ddf.EscherRecordFactory)
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*/
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*/
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protected int fillFields( byte[] data, EscherRecordFactory f )
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protected int fillFields( byte[] data, EscherRecordFactory f ) {
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{
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return fillFields( data, 0, f );
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return fillFields( data, 0, f );
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}
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}
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@ -154,8 +153,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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* @return The options field for this record. All records have one.
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* @return The options field for this record. All records have one.
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*/
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*/
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@Internal
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@Internal
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public short getOptions()
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public short getOptions() {
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{
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return _options;
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return _options;
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}
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}
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@ -183,8 +181,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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* @return the serialized record.
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* @return the serialized record.
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* @see #serialize(int, byte[])
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* @see #serialize(int, byte[])
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*/
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*/
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public byte[] serialize()
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public byte[] serialize() {
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{
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byte[] retval = new byte[getRecordSize()];
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byte[] retval = new byte[getRecordSize()];
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serialize( 0, retval );
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serialize( 0, retval );
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@ -201,8 +198,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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*
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*
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* @see #serialize(int, byte[], org.apache.poi.ddf.EscherSerializationListener)
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* @see #serialize(int, byte[], org.apache.poi.ddf.EscherSerializationListener)
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*/
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*/
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public int serialize( int offset, byte[] data)
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public int serialize( int offset, byte[] data) {
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{
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return serialize( offset, data, new NullEscherSerializationListener() );
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return serialize( offset, data, new NullEscherSerializationListener() );
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}
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}
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@ -252,7 +248,9 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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*
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*
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* @see EscherContainerRecord
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* @see EscherContainerRecord
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*/
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*/
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public List<EscherRecord> getChildRecords() { return Collections.emptyList(); }
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public List<EscherRecord> getChildRecords() {
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return Collections.emptyList();
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}
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/**
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/**
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* Sets the child records for this record. By default this will throw
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* Sets the child records for this record. By default this will throw
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@ -281,8 +279,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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* @param w The print writer to output to.
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* @param w The print writer to output to.
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* @param indent The current indent level.
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* @param indent The current indent level.
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*/
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*/
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public void display(PrintWriter w, int indent)
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public void display(PrintWriter w, int indent) {
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{
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for (int i = 0; i < indent * 4; i++) {
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for (int i = 0; i < indent * 4; i++) {
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w.print(' ');
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w.print(' ');
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}
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}
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@ -301,8 +298,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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*
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*
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* @return The instance part of the record
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* @return The instance part of the record
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*/
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*/
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public short getInstance()
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public short getInstance() {
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{
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return fInstance.getShortValue( _options );
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return fInstance.getShortValue( _options );
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}
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}
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@ -311,8 +307,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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*
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*
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* @param value instance part value
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* @param value instance part value
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*/
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*/
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public void setInstance( short value )
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public void setInstance( short value ) {
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{
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_options = fInstance.setShortValue( _options, value );
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_options = fInstance.setShortValue( _options, value );
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}
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}
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@ -321,8 +316,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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*
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*
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* @return The version part of the option record
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* @return The version part of the option record
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*/
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*/
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public short getVersion()
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public short getVersion() {
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{
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return fVersion.getShortValue( _options );
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return fVersion.getShortValue( _options );
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}
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}
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@ -331,12 +325,11 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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*
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*
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* @param value version part value
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* @param value version part value
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*/
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*/
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public void setVersion( short value )
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public void setVersion( short value ) {
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{
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_options = fVersion.setShortValue( _options, value );
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_options = fVersion.setShortValue( _options, value );
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}
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}
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public String toXml(){
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public String toXml() {
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return toXml("");
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return toXml("");
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}
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}
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@ -344,7 +337,7 @@ public abstract class EscherRecord implements Duplicatable, GenericRecord {
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* @param tab - each children must be indented right relative to its parent
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* @param tab - each children must be indented right relative to its parent
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* @return xml representation of this record
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* @return xml representation of this record
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*/
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*/
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public final String toXml(String tab){
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public final String toXml(String tab) {
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return GenericRecordXmlWriter.marshal(this);
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return GenericRecordXmlWriter.marshal(this);
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}
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}
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