forked from spotbugs/spotbugs
-
Notifications
You must be signed in to change notification settings - Fork 0
/
FindEmptySynchronizedBlock.java
44 lines (36 loc) · 1.58 KB
/
FindEmptySynchronizedBlock.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
/*
* FindBugs - Find bugs in Java programs
* Copyright (C) 2005-2006 University of Maryland
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.umd.cs.findbugs.detect;
import org.apache.bcel.Const;
import edu.umd.cs.findbugs.BugInstance;
import edu.umd.cs.findbugs.BugReporter;
import edu.umd.cs.findbugs.BytecodeScanningDetector;
public class FindEmptySynchronizedBlock extends BytecodeScanningDetector {
BugReporter bugReporter;
public FindEmptySynchronizedBlock(BugReporter bugReporter) {
this.bugReporter = bugReporter;
}
@Override
public void sawOpcode(int seen) {
if (seen == Const.MONITOREXIT && (getPrevOpcode(2) == Const.MONITORENTER || getPrevOpcode(1) == Const.MONITORENTER)) {
bugReporter.reportBug(new BugInstance(this, "ESync_EMPTY_SYNC", NORMAL_PRIORITY).addClassAndMethod(this)
.addSourceLine(this));
}
}
}