Jersey 2.0 Content-Length not set

Jersey 2.0 Content-Length not set

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Jersey 2.0 Content-Length not set
Tag : java , By : keird
Date : November 24 2020, 05:47 AM

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Content-Length-Header not set in Jersey Client request

Tag : java , By : James Lupiani
Date : March 29 2020, 07:55 AM
seems to work fine The content length of a call is computed by Jersey Client, it cannot be set. Paul Sandoz — a well known commiter on the project — have answered a similar question:

Jersey Client doesn't set Content-Length

Tag : java , By : Star Gryphon
Date : March 29 2020, 07:55 AM
Hope that helps This is known "issue" and actually intended behavior.
Problem here is that entity is processed AFTER headers are written out to "the wire", thus Content-Length header value is not know when headers are serialized. If you need to have it, you have several options (with various complexity):

Jersey Client (2.4) - PUT InputStream but Content-Length = 0

Tag : java , By : woxorz
Date : March 29 2020, 07:55 AM
like below fixes the issue Just to answer this:
This is a problem with the ApacheConnector, which will always return -1 for the size of the content, ensuring this value is never set. (This is hardcoded in the getHttpEntity method)

Best way to make Jersey 2.x refuse requests with incorrect Content-Length?

Tag : java , By : user183825
Date : March 29 2020, 07:55 AM
Does that help If you don't want to buffer the incoming entity (input stream) I'd take a look at ReaderInterceptor interface. Instances of this contract are invoked only in cases when incoming requests contain an entity (typically POST, PUT). In the interceptor you can pretty much do anything with entity. A simple snippet (not covering all cases) could look like:
public class MyInterceptor implements ReaderInterceptor {

    public Object aroundReadFrom(final ReaderInterceptorContext context) throws IOException, WebApplicationException {
        final InputStream old = context.getInputStream();
        final String first = context.getHeaders().getFirst("Content-Length");
        final Long declared = first == null ? -1 : Long.valueOf(first);

        context.setInputStream(new InputStream() {

            private long length = 0;
            private int mark = 0;

            public int read() throws IOException {
                final int read = old.read();
                readAndCheck(read != -1 ? 1 : 0);
                return read;

            public int read(final byte[] b) throws IOException {
                final int read = old.read(b);
                readAndCheck(read != -1 ? read : 0);
                return read;

            public int read(final byte[] b, final int off, final int len) throws IOException {
                final int read = old.read(b, off, len);
                readAndCheck(read != -1 ? read : 0);
                return read;

            public long skip(final long n) throws IOException {
                final long skip = old.skip(n);
                readAndCheck(skip != -1 ? skip : 0);
                return skip;

            public int available() throws IOException {
                return old.available();

            public void close() throws IOException {

            public synchronized void mark(final int readlimit) {
                mark += readlimit;

            public synchronized void reset() throws IOException {
                this.length = 0;

            public boolean markSupported() {
                return old.markSupported();

            private void readAndCheck(final long read) {
                this.length += read;

                if (this.length > declared) {
                    throw new WebApplicationException(
                                    .entity("No content-length provided.")

        final Object entity = context.proceed();


        return entity;

How do I set Content-Length when returning large objects in Jersey JAX-RS server

Tag : development , By : DotNetWise
Date : March 29 2020, 07:55 AM
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