This is an automated email from the ASF dual-hosted git repository.
remm pushed a commit to branch 10.1.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git
The following commit(s) were added to refs/heads/10.1.x by this push:
new 1b1591a02e Javadoc cleanup for Coyote
1b1591a02e is described below
commit 1b1591a02ebc819bc3ccc8aa5c921fce76352ce2
Author: remm <r...@apache.org>
AuthorDate: Thu May 2 14:46:37 2024 +0200
Javadoc cleanup for Coyote
---
java/org/apache/coyote/AbstractProcessor.java | 43 ++++++++++++++++++++++
java/org/apache/coyote/AbstractProcessorLight.java | 8 ++++
java/org/apache/coyote/AbstractProtocol.java | 3 --
java/org/apache/coyote/ActionCode.java | 12 ++++++
java/org/apache/coyote/Adapter.java | 16 +++++++-
java/org/apache/coyote/Processor.java | 3 ++
java/org/apache/coyote/ajp/AjpProcessor.java | 6 ---
.../apache/coyote/http11/Http11InputBuffer.java | 4 ++
.../apache/coyote/http11/Http11OutputBuffer.java | 9 +----
java/org/apache/coyote/http11/Http11Processor.java | 3 --
.../coyote/http11/filters/ChunkedInputFilter.java | 15 --------
.../coyote/http11/filters/GzipOutputFilter.java | 6 +--
.../coyote/http11/filters/IdentityInputFilter.java | 14 +------
.../http11/filters/SavedRequestInputFilter.java | 11 ++----
.../coyote/http11/filters/VoidInputFilter.java | 22 -----------
.../http11/upgrade/InternalHttpUpgradeHandler.java | 26 +++++++++++++
.../apache/coyote/http2/AbstractNonZeroStream.java | 13 +++++++
java/org/apache/coyote/http2/AbstractStream.java | 38 +++++++++++++++++++
.../tomcat/util/net/ApplicationBufferHandler.java | 11 ++++++
19 files changed, 181 insertions(+), 82 deletions(-)
diff --git a/java/org/apache/coyote/AbstractProcessor.java
b/java/org/apache/coyote/AbstractProcessor.java
index c61be06dd6..49a7882712 100644
--- a/java/org/apache/coyote/AbstractProcessor.java
+++ b/java/org/apache/coyote/AbstractProcessor.java
@@ -721,27 +721,60 @@ public abstract class AbstractProcessor extends
AbstractProcessorLight implement
}
+ /**
+ * When committing the response, we have to validate the set of headers,
as well as setup the response filters.
+ * @throws IOException IO exception during commit
+ */
protected abstract void prepareResponse() throws IOException;
+ /**
+ * Finish the current response.
+ * @throws IOException IO exception during the write
+ */
protected abstract void finishResponse() throws IOException;
+ /**
+ * Process acknowledgment of the request.
+ * @param continueResponseTiming specifies when an acknowledgment should
be sent
+ */
protected abstract void ack(ContinueResponseTiming continueResponseTiming);
+ /**
+ * Callback to write data from the buffer.
+ * @throws IOException IO exception during the write
+ */
protected abstract void flush() throws IOException;
+ /**
+ * Queries if bytes are available in buffers.
+ * @param doRead {@code true} to perform a read when no bytes are availble
+ * @return the amount of bytes that are known to be available
+ */
protected abstract int available(boolean doRead);
+ /**
+ * Set the specified byte chunk as the request body that will be read.
This allows saving and
+ * processing requests.
+ * @param body the byte chunk containing all the request bytes
+ */
protected abstract void setRequestBody(ByteChunk body);
+ /**
+ * The response is finished and no additional bytes need to be sent to the
client.
+ */
protected abstract void setSwallowResponse();
+ /**
+ * Swallowing bytes is required for pipelining requests, so this allows to
avoid doing extra operations
+ * in case an error occurs and the connection is to be closed instead.
+ */
protected abstract void disableSwallowRequest();
@@ -844,12 +877,22 @@ public abstract class AbstractProcessor extends
AbstractProcessorLight implement
}
+ /**
+ * @return {@code true} if it is known that the request body has been
fully read
+ */
protected abstract boolean isRequestBodyFullyRead();
+ /**
+ * When using non blocking IO, register to get a callback when polling
determines that bytes
+ * are available for reading.
+ */
protected abstract void registerReadInterest();
+ /**
+ * @return {@code true} if bytes can be written without blocking
+ */
protected abstract boolean isReadyForWrite();
diff --git a/java/org/apache/coyote/AbstractProcessorLight.java
b/java/org/apache/coyote/AbstractProcessorLight.java
index 8948f145e2..5ff9c5f79b 100644
--- a/java/org/apache/coyote/AbstractProcessorLight.java
+++ b/java/org/apache/coyote/AbstractProcessorLight.java
@@ -185,7 +185,15 @@ public abstract class AbstractProcessorLight implements
Processor {
*/
protected abstract SocketState dispatch(SocketEvent status) throws
IOException;
+ /**
+ * Calls the post process of the async state machine.
+ *
+ * @return The state the caller should put the socket in when this method
returns
+ */
protected abstract SocketState asyncPostProcess();
+ /**
+ * @return the logger associated with this processor type
+ */
protected abstract Log getLog();
}
diff --git a/java/org/apache/coyote/AbstractProtocol.java
b/java/org/apache/coyote/AbstractProtocol.java
index 3a05b01dcf..95179c0d2a 100644
--- a/java/org/apache/coyote/AbstractProtocol.java
+++ b/java/org/apache/coyote/AbstractProtocol.java
@@ -1107,9 +1107,6 @@ public abstract class AbstractProtocol<S> implements
ProtocolHandler, MBeanRegis
}
- /**
- * Expected to be used by the Endpoint to release resources on socket
close, errors etc.
- */
@Override
public void release(SocketWrapperBase<S> socketWrapper) {
Processor processor = (Processor)
socketWrapper.takeCurrentProcessor();
diff --git a/java/org/apache/coyote/ActionCode.java
b/java/org/apache/coyote/ActionCode.java
index 308d3b3eee..6a24345ed2 100644
--- a/java/org/apache/coyote/ActionCode.java
+++ b/java/org/apache/coyote/ActionCode.java
@@ -26,8 +26,20 @@ package org.apache.coyote;
* @author Remy Maucherat
*/
public enum ActionCode {
+
+ /**
+ * Acknowledge request, most often used for HTTP expectations.
+ */
ACK,
+
+ /**
+ * Regular close.
+ */
CLOSE,
+
+ /**
+ * Response commit, which means any initial bytes part of the response are
going to be sent.
+ */
COMMIT,
/**
diff --git a/java/org/apache/coyote/Adapter.java
b/java/org/apache/coyote/Adapter.java
index f85b1f2e8e..93c7657326 100644
--- a/java/org/apache/coyote/Adapter.java
+++ b/java/org/apache/coyote/Adapter.java
@@ -28,7 +28,7 @@ import org.apache.tomcat.util.net.SocketEvent;
public interface Adapter {
/**
- * Call the service method, and notify all listeners
+ * Call the service method, and notify all listeners.
*
* @param req The request object
* @param res The response object
@@ -59,8 +59,22 @@ public interface Adapter {
*/
boolean prepare(Request req, Response res) throws Exception;
+ /**
+ * Dispatch asynchronous event.
+ * @param req the request object
+ * @param res the response object
+ * @param status the event being processed
+ * @return {@code true} if the dispatch was successful
+ * @throws Exception If the processing fails unexpectedly
+ */
boolean asyncDispatch(Request req, Response res, SocketEvent status)
throws Exception;
+ /**
+ * Callback to allow logging access outside of the execution of the
regular service.
+ * @param req the request object
+ * @param res the response object
+ * @param time time taken to process the request/response in milliseconds
(use 0 if not known)
+ */
void log(Request req, Response res, long time);
/**
diff --git a/java/org/apache/coyote/Processor.java
b/java/org/apache/coyote/Processor.java
index ad41bc4880..64192f474d 100644
--- a/java/org/apache/coyote/Processor.java
+++ b/java/org/apache/coyote/Processor.java
@@ -56,6 +56,9 @@ public interface Processor {
*/
boolean isUpgrade();
+ /**
+ * @return {@code true} if the Processor state is async, otherwise {@code
false}
+ */
boolean isAsync();
/**
diff --git a/java/org/apache/coyote/ajp/AjpProcessor.java
b/java/org/apache/coyote/ajp/AjpProcessor.java
index d13e32635c..2b85097dd8 100644
--- a/java/org/apache/coyote/ajp/AjpProcessor.java
+++ b/java/org/apache/coyote/ajp/AjpProcessor.java
@@ -1010,9 +1010,6 @@ public class AjpProcessor extends AbstractProcessor {
}
- /**
- * Callback to write data from the buffer.
- */
@Override
protected final void flush() throws IOException {
// Calling code should ensure that there is no data in the buffers for
@@ -1028,9 +1025,6 @@ public class AjpProcessor extends AbstractProcessor {
}
- /**
- * Finish AJP response.
- */
@Override
protected final void finishResponse() throws IOException {
if (responseFinished) {
diff --git a/java/org/apache/coyote/http11/Http11InputBuffer.java
b/java/org/apache/coyote/http11/Http11InputBuffer.java
index 9390c3b8f1..e03d7628d7 100644
--- a/java/org/apache/coyote/http11/Http11InputBuffer.java
+++ b/java/org/apache/coyote/http11/Http11InputBuffer.java
@@ -579,6 +579,8 @@ public class Http11InputBuffer implements InputBuffer,
ApplicationBufferHandler
/**
* Parse the HTTP headers.
+ *
+ * @throws IOException an underlying I/O error occurred
*/
boolean parseHeaders() throws IOException {
if (!parsingHeader) {
@@ -656,6 +658,7 @@ public class Http11InputBuffer implements InputBuffer,
ApplicationBufferHandler
/**
* Available bytes in the buffers for the current request. Note that when
requests are pipelined, the data in
* byteBuffer may relate to the next request rather than this one.
+ * @return the amount of bytes available, 0 if none, and 1 if there was an
IO error to trigger a read
*/
int available(boolean read) {
int available;
@@ -698,6 +701,7 @@ public class Http11InputBuffer implements InputBuffer,
ApplicationBufferHandler
/**
* Has all of the request body been read? There are subtle differences
between this and available() > 0 primarily
* because of having to handle faking non-blocking reads with the blocking
IO connector.
+ * @return {@code true} if the request has been fully read
*/
boolean isFinished() {
// The active filters have the definitive information on whether or not
diff --git a/java/org/apache/coyote/http11/Http11OutputBuffer.java
b/java/org/apache/coyote/http11/Http11OutputBuffer.java
index 0b9bf29b20..bcdc89c9c6 100644
--- a/java/org/apache/coyote/http11/Http11OutputBuffer.java
+++ b/java/org/apache/coyote/http11/Http11OutputBuffer.java
@@ -207,11 +207,7 @@ public class Http11OutputBuffer implements
HttpOutputBuffer {
// ----------------------------------------------- HttpOutputBuffer Methods
- /**
- * Flush the response.
- *
- * @throws IOException an underlying I/O error occurred
- */
+
@Override
public void flush() throws IOException {
if (lastActiveFilter == -1) {
@@ -528,9 +524,6 @@ public class Http11OutputBuffer implements HttpOutputBuffer
{
*/
protected class SocketOutputBuffer implements HttpOutputBuffer {
- /**
- * Write chunk.
- */
@Override
public int doWrite(ByteBuffer chunk) throws IOException {
try {
diff --git a/java/org/apache/coyote/http11/Http11Processor.java
b/java/org/apache/coyote/http11/Http11Processor.java
index c75243e369..b9e65ad6bb 100644
--- a/java/org/apache/coyote/http11/Http11Processor.java
+++ b/java/org/apache/coyote/http11/Http11Processor.java
@@ -867,9 +867,6 @@ public class Http11Processor extends AbstractProcessor {
}
- /**
- * When committing the response, we have to validate the set of headers,
as well as setup the response filters.
- */
@Override
protected final void prepareResponse() throws IOException {
diff --git a/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java
b/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java
index f350487771..0f988328ec 100644
--- a/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java
+++ b/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java
@@ -167,18 +167,12 @@ public class ChunkedInputFilter implements InputFilter,
ApplicationBufferHandler
// ---------------------------------------------------- InputFilter Methods
- /**
- * Read the content length from the request.
- */
@Override
public void setRequest(Request request) {
// NO-OP - Request is fixed and passed to constructor.
}
- /**
- * End the current request.
- */
@Override
public long end() throws IOException {
long swallowed = 0;
@@ -199,9 +193,6 @@ public class ChunkedInputFilter implements InputFilter,
ApplicationBufferHandler
}
- /**
- * Amount of bytes still available in a buffer.
- */
@Override
public int available() {
int available = 0;
@@ -217,18 +208,12 @@ public class ChunkedInputFilter implements InputFilter,
ApplicationBufferHandler
}
- /**
- * Set the next buffer in the filter pipeline.
- */
@Override
public void setBuffer(InputBuffer buffer) {
this.buffer = buffer;
}
- /**
- * Make the filter ready to process the next request.
- */
@Override
public void recycle() {
remaining = 0;
diff --git a/java/org/apache/coyote/http11/filters/GzipOutputFilter.java
b/java/org/apache/coyote/http11/filters/GzipOutputFilter.java
index 14c68db9a5..16243b0cf2 100644
--- a/java/org/apache/coyote/http11/filters/GzipOutputFilter.java
+++ b/java/org/apache/coyote/http11/filters/GzipOutputFilter.java
@@ -88,7 +88,8 @@ public class GzipOutputFilter implements OutputFilter {
// --------------------------------------------------- OutputFilter Methods
/**
- * Added to allow flushing to happen for the gzip'ed outputstream
+ * {@inheritDoc}
+ * Added to allow flushing to happen for the gzip'ed outputstream.
*/
@Override
public void flush() throws IOException {
@@ -131,9 +132,6 @@ public class GzipOutputFilter implements OutputFilter {
}
- /**
- * Make the filter ready to process the next request.
- */
@Override
public void recycle() {
// Set compression stream to null
diff --git a/java/org/apache/coyote/http11/filters/IdentityInputFilter.java
b/java/org/apache/coyote/http11/filters/IdentityInputFilter.java
index f89cee5eec..ef494a5614 100644
--- a/java/org/apache/coyote/http11/filters/IdentityInputFilter.java
+++ b/java/org/apache/coyote/http11/filters/IdentityInputFilter.java
@@ -126,6 +126,7 @@ public class IdentityInputFilter implements InputFilter,
ApplicationBufferHandle
/**
+ * {@inheritDoc}
* Read the content length from the request.
*/
@Override
@@ -166,9 +167,6 @@ public class IdentityInputFilter implements InputFilter,
ApplicationBufferHandle
}
- /**
- * Amount of bytes still available in a buffer.
- */
@Override
public int available() {
// No data buffered here. Try the next filter in the chain.
@@ -176,18 +174,12 @@ public class IdentityInputFilter implements InputFilter,
ApplicationBufferHandle
}
- /**
- * Set the next buffer in the filter pipeline.
- */
@Override
public void setBuffer(InputBuffer buffer) {
this.buffer = buffer;
}
- /**
- * Make the filter ready to process the next request.
- */
@Override
public void recycle() {
contentLength = -1;
@@ -195,10 +187,6 @@ public class IdentityInputFilter implements InputFilter,
ApplicationBufferHandle
}
- /**
- * Return the name of the associated encoding; Here, the value is
- * "identity".
- */
@Override
public ByteChunk getEncodingName() {
return ENCODING;
diff --git a/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java
b/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java
index d9a8c152e2..fb3b8638eb 100644
--- a/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java
+++ b/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java
@@ -58,6 +58,7 @@ public class SavedRequestInputFilter implements InputFilter {
}
/**
+ * {@inheritDoc}
* Set the content length on the request.
*/
@Override
@@ -65,16 +66,13 @@ public class SavedRequestInputFilter implements InputFilter
{
request.setContentLength(input.getLength());
}
- /**
- * Make the filter ready to process the next request.
- */
@Override
public void recycle() {
input = null;
}
/**
- * Return the name of the associated encoding; here, the value is null.
+ * @return null
*/
@Override
public ByteChunk getEncodingName() {
@@ -83,15 +81,13 @@ public class SavedRequestInputFilter implements InputFilter
{
/**
* Set the next buffer in the filter pipeline (has no effect).
+ * @param buffer ignored
*/
@Override
public void setBuffer(InputBuffer buffer) {
// NOOP since this filter will be providing the request body
}
- /**
- * Amount of bytes still available in a buffer.
- */
@Override
public int available() {
return input.getLength();
@@ -99,6 +95,7 @@ public class SavedRequestInputFilter implements InputFilter {
/**
* End the current request (has no effect).
+ * @return 0
*/
@Override
public long end() throws IOException {
diff --git a/java/org/apache/coyote/http11/filters/VoidInputFilter.java
b/java/org/apache/coyote/http11/filters/VoidInputFilter.java
index 0784d7bd01..5db6fac975 100644
--- a/java/org/apache/coyote/http11/filters/VoidInputFilter.java
+++ b/java/org/apache/coyote/http11/filters/VoidInputFilter.java
@@ -58,52 +58,30 @@ public class VoidInputFilter implements InputFilter {
// ---------------------------------------------------- InputFilter Methods
- /**
- * Set the associated request.
- */
@Override
public void setRequest(Request request) {
// NOOP: Request isn't used so ignore it
}
- /**
- * Set the next buffer in the filter pipeline.
- */
@Override
public void setBuffer(InputBuffer buffer) {
// NOOP: No body to read
}
- /**
- * Make the filter ready to process the next request.
- */
@Override
public void recycle() {
// NOOP
}
- /**
- * Return the name of the associated encoding; Here, the value is
- * "void".
- */
@Override
public ByteChunk getEncodingName() {
return ENCODING;
}
- /**
- * End the current request. It is acceptable to write extra bytes using
- * buffer.doWrite during the execution of this method.
- *
- * @return Should return 0 unless the filter does some content length
- * delimitation, in which case the number is the amount of extra bytes or
- * missing bytes, which would indicate an error.
- * Note: It is recommended that extra bytes be swallowed by the filter.
- */
@Override
public long end() throws IOException {
return 0;
diff --git
a/java/org/apache/coyote/http11/upgrade/InternalHttpUpgradeHandler.java
b/java/org/apache/coyote/http11/upgrade/InternalHttpUpgradeHandler.java
index 3151d95c8d..7ed2e14700 100644
--- a/java/org/apache/coyote/http11/upgrade/InternalHttpUpgradeHandler.java
+++ b/java/org/apache/coyote/http11/upgrade/InternalHttpUpgradeHandler.java
@@ -30,20 +30,46 @@ import org.apache.tomcat.util.net.SocketWrapperBase;
*/
public interface InternalHttpUpgradeHandler extends HttpUpgradeHandler {
+ /**
+ * Process the specified event.
+ * @param status the event
+ * @return the status following the event
+ */
SocketState upgradeDispatch(SocketEvent status);
+ /**
+ * Check for a possible timeout.
+ * @param now the time to use for the timeout check
+ */
void timeoutAsync(long now);
+ /**
+ * Associate with the specified socket.
+ * @param wrapper the socket
+ */
void setSocketWrapper(SocketWrapperBase<?> wrapper);
+ /**
+ * Associate with the specified SSL support.
+ * @param sslSupport the SSL support
+ */
void setSslSupport(SSLSupport sslSupport);
+ /**
+ * Pause processing for the connection.
+ */
void pause();
+ /**
+ * @return {@code true} if able to process asynchronous IO, default is
{@code false}
+ */
default boolean hasAsyncIO() {
return false;
}
+ /**
+ * @return the associated upgrade information used to collect statistics
for the connection
+ */
default UpgradeInfo getUpgradeInfo() {
return null;
}
diff --git a/java/org/apache/coyote/http2/AbstractNonZeroStream.java
b/java/org/apache/coyote/http2/AbstractNonZeroStream.java
index aae614f42c..333e33e5e3 100644
--- a/java/org/apache/coyote/http2/AbstractNonZeroStream.java
+++ b/java/org/apache/coyote/http2/AbstractNonZeroStream.java
@@ -41,11 +41,19 @@ abstract class AbstractNonZeroStream extends AbstractStream
{
}
+ /**
+ * @return {@code true} if the state indicates a close
+ */
final boolean isClosedFinal() {
return state.isClosedFinal();
}
+ /**
+ * Check the frame type against the state
+ * @param frameType the type
+ * @throws Http2Exception if an error is detected
+ */
final void checkState(FrameType frameType) throws Http2Exception {
state.checkFrameType(frameType);
}
@@ -59,5 +67,10 @@ abstract class AbstractNonZeroStream extends AbstractStream {
*/
abstract ByteBuffer getInputByteBuffer();
+ /**
+ * Notify that some data has been received.
+ * @param payloadSize the byte count
+ * @throws Http2Exception if an error is detected
+ */
abstract void receivedData(int payloadSize) throws Http2Exception;
}
diff --git a/java/org/apache/coyote/http2/AbstractStream.java
b/java/org/apache/coyote/http2/AbstractStream.java
index 367e764232..35aa402730 100644
--- a/java/org/apache/coyote/http2/AbstractStream.java
+++ b/java/org/apache/coyote/http2/AbstractStream.java
@@ -50,21 +50,34 @@ abstract class AbstractStream {
}
+ /**
+ * @return the stream identifier
+ */
final Integer getIdentifier() {
return identifier;
}
+ /**
+ * @return the stream identifier as a String
+ */
final String getIdAsString() {
return idAsString;
}
+ /**
+ * @return the stream identifier
+ */
final int getIdAsInt() {
return identifier.intValue();
}
+ /**
+ * Set the window size for this stream.
+ * @param windowSize the value
+ */
final void setWindowSize(long windowSize) {
windowAllocationLock.lock();
try {
@@ -75,6 +88,9 @@ abstract class AbstractStream {
}
+ /**
+ * @return the window size
+ */
final long getWindowSize() {
windowAllocationLock.lock();
try {
@@ -120,6 +136,11 @@ abstract class AbstractStream {
}
+ /**
+ * Decrement window size.
+ *
+ * @param decrement The amount by which the window size should be decreased
+ */
final void decrementWindowSize(int decrement) {
windowAllocationLock.lock();
try {
@@ -137,11 +158,18 @@ abstract class AbstractStream {
}
+ /**
+ * @return the requested amount of resources requested
+ */
final int getConnectionAllocationRequested() {
return connectionAllocationRequested;
}
+ /**
+ * Set the amount of requested resources.
+ * @param connectionAllocationRequested the value
+ */
final void setConnectionAllocationRequested(int
connectionAllocationRequested) {
log.trace(sm.getString("abstractStream.setConnectionAllocationRequested",
getConnectionId(), getIdAsString(),
Integer.toString(this.connectionAllocationRequested),
Integer.toString(connectionAllocationRequested)));
@@ -149,11 +177,18 @@ abstract class AbstractStream {
}
+ /**
+ * @return the allocation that was made at the connection level
+ */
final int getConnectionAllocationMade() {
return connectionAllocationMade;
}
+ /**
+ * Set the allocation made at the connection level.
+ * @param connectionAllocationMade the value
+ */
final void setConnectionAllocationMade(int connectionAllocationMade) {
log.trace(sm.getString("abstractStream.setConnectionAllocationMade",
getConnectionId(), getIdAsString(),
Integer.toString(this.connectionAllocationMade),
Integer.toString(connectionAllocationMade)));
@@ -161,5 +196,8 @@ abstract class AbstractStream {
}
+ /**
+ * @return the connection id
+ */
abstract String getConnectionId();
}
diff --git a/java/org/apache/tomcat/util/net/ApplicationBufferHandler.java
b/java/org/apache/tomcat/util/net/ApplicationBufferHandler.java
index d0a41b466c..0e8873c796 100644
--- a/java/org/apache/tomcat/util/net/ApplicationBufferHandler.java
+++ b/java/org/apache/tomcat/util/net/ApplicationBufferHandler.java
@@ -39,10 +39,21 @@ public interface ApplicationBufferHandler {
}
};
+ /**
+ * Set the byte buffer.
+ * @param buffer the byte buffer
+ */
void setByteBuffer(ByteBuffer buffer);
+ /**
+ * @return the byte buffer
+ */
ByteBuffer getByteBuffer();
+ /**
+ * Expand the byte buffer to at least the given size. Some implementations
may not implement this.
+ * @param size the desired size
+ */
void expand(int size);
}
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