On 06/12/2020 21:49, Rainer Jung wrote: <snip/>
> I don't know, whether this is new, but I observe a loop when running > at > java.util.concurrent.CountDownLatch.await(CountDownLatch.java:236) > at org.apache.tomcat.util.net.TestSsl.testPost(TestSsl.java:153) <snip/> > The loop happens in > > "Thread-8" prio=3 tid=0x00692800 nid=0x43 runnable [0xe5bff000] > java.lang.Thread.State: RUNNABLE > at sun.security.ssl.AppInputStream.read(AppInputStream.java:92) > - locked <0xed614d38> (a sun.security.ssl.AppInputStream) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:69) > - locked <0xed614d38> (a sun.security.ssl.AppInputStream) > at org.apache.tomcat.util.net.TestSsl$1.run(TestSsl.java:128) > > "Thread-8" prio=3 tid=0x00692800 nid=0x43 runnable [0xe5bff000] > java.lang.Thread.State: RUNNABLE > at org.apache.tomcat.util.net.TestSsl$1.run(TestSsl.java:128) > > > Another stack I captured was: > > Thread t@67: (state = IN_JAVA) > - java.lang.StringBuilder.append(java.lang.String) @bci=2, line=132 > (Compiled frame; information may be imprecise) > - sun.security.ssl.SSLSocketImpl.checkEOF() @bci=96, line=1496 > (Compiled frame) > - sun.security.ssl.AppInputStream.read(byte[], int, int) @bci=46, > line=92 (Compiled frame) > - sun.security.ssl.AppInputStream.read() @bci=7, line=69 (Compiled frame) > - org.apache.tomcat.util.net.TestSsl$1.run() @bci=151, line=128 > (Compiled frame) > > The test loops using a lot of CPU, it is not just a hang. <snip/> The code in question is: while (found != endOfHeaders.length) { if (is.read() == endOfHeaders[found]) { found++; } else { found = 0; } } If the read receives EOF before it reaches the end of the headers that is going to trigger an infinite loop. I see references to EOF in the thread dump so I am guess something went wrong that truncated the response and triggered the infinite loop. I'll look at fixing the test. Mark --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org