test java/net/httpclient/websocket/ConnectionHandover.java gets timed out for solaris-x64 architecture.

See log snippet:
CLASSPATH=/scratch/jenkins/workspace/9-dev/testresults/solaris-x64/jdk_test.tier2/jtreg/JTwork/classes/3/java/net/httpclient/websocket:/scratch/jenkins/workspace/9-dev/jdk/test/java/net/httpclient/websocket:/scratch/jenkins/workspace/mach5data/install/java/re/jtreg/4.2/promoted/all/b07/bundles/jtreg_bin-4.2.zip/jtreg/lib/javatest.jar:/scratch/jenkins/workspace/mach5data/install/java/re/jtreg/4.2/promoted/all/b07/bundles/jtreg_bin-4.2.zip/jtreg/lib/jtreg.jar \\
    /scratch/jenkins/workspace/9-dev/build/jdk/bin/java \\
        -Dtest.class.path.prefix=/scratch/jenkins/workspace/9-dev/testresults/solaris-x64/jdk_test.tier2/jtreg/JTwork/classes/3/java/net/httpclient/websocket:/scratch/jenkins/workspace/9-dev/jdk/test/java/net/httpclient/websocket \\
        -Dtest.src=/scratch/jenkins/workspace/9-dev/jdk/test/java/net/httpclient/websocket \\
        -Dtest.src.path=/scratch/jenkins/workspace/9-dev/jdk/test/java/net/httpclient/websocket \\
        -Dtest.classes=/scratch/jenkins/workspace/9-dev/testresults/solaris-x64/jdk_test.tier2/jtreg/JTwork/classes/3/java/net/httpclient/websocket \\
        -Dtest.class.path=/scratch/jenkins/workspace/9-dev/testresults/solaris-x64/jdk_test.tier2/jtreg/JTwork/classes/3/java/net/httpclient/websocket \\
        -Dtest.vm.opts='-ea -esa -Xmx512m' \\
        -Dtest.tool.vm.opts='-J-ea -J-esa -J-Xmx512m' \\
        -Dtest.compiler.opts= \\
        -Dtest.java.opts= \\
        -Dtest.jdk=/scratch/jenkins/workspace/9-dev/build/jdk \\
        -Dcompile.jdk=/scratch/jenkins/workspace/9-dev/build/jdk \\
        -Dtest.timeout.factor=5.0 \\
        -Dtest.modules=jdk.incubator.httpclient \\
        --add-modules jdk.incubator.httpclient \\
        -ea \\
        -esa \\
        -Xmx512m \\
        -Djdk.httpclient.HttpClient.log=trace \\
        com.sun.javatest.regtest.agent.MainWrapper /scratch/jenkins/workspace/9-dev/testresults/solaris-x64/jdk_test.tier2/jtreg/JTwork/java/net/httpclient/websocket/ConnectionHandover.d/main.0.jta
result: Error. Program `/scratch/jenkins/workspace/9-dev/build/jdk/bin/java' timed out (timeout set to 600000ms, elapsed time including timeout handling was 600541ms).