7903733: Fixed an issue with incorrect coverage line statistics

[Accelerator1996]

The hited lines will be removed if isHit is false the next time the coverage is calculated, which will cause the actual number to be inconsistent with the green lines displayed in the coverage HTML report.

<meth name="&lt;init&gt;" vmsig="(IIJ)V" flags=' public' access="131073" cons="true" length="49">
				<bl s="0" e="48">
					<methenter s="0" e="48" id="636775" count="0"/>
					<exit s="48" e="48" opcode="return"/>
				</bl>
				<lt>0=138;4=94;15=111;22=139;28=140;42=141;48=142;</lt>
			</meth>
			<meth name="&lt;init&gt;" vmsig="(IJ)V" flags=' public' access="1" cons="true" length="35">
				<bl s="0" e="34">
					<methenter s="0" e="34" id="636776" count="107"/>
					<exit s="34" e="34" opcode="return"/>
				</bl>
				<lt>0=148;4=94;15=111;22=149;28=150;34=151;</lt>
			</meth>
			<meth name="&lt;init&gt;" vmsig="(J)V" flags=' public' access="1" cons="true" length="29">
				<bl s="0" e="28">
					<methenter s="0" e="28" id="636777" count="0"/>
					<exit s="28" e="28" opcode="return"/>
				</bl>
				<lt>0=156;4=94;15=111;22=157;28=158;</lt>
			</meth>

The above xml is taken from the test result xml file generated by jcov. It can be seen that in the three init, line 94 is run once, but the code will reduce the covered value by 1.

The problem is shown in the figure below. The line coverage is 55/101, but there are actually 59 green lines in the HTML report.

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Progress

• [x] Change must not contain extraneous whitespace

Error

 ⚠️ OCA signatory status must be verified

Integration blocker

 ⚠️ Title mismatch between PR and JBS for issue CODETOOLS-7903733

Issue

• CODETOOLS-7903733: [jcov]The number of covered lines displayed by jcov statistics is incorrect (Bug - P4) ⚠️ Title mismatch between PR and JBS.

Reviewing

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https://git.openjdk.org/jcov/pull/49.diff