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CatchIllegalMonitorStateExceptionCheck.java
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CatchIllegalMonitorStateExceptionCheck.java
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/*
* SonarQube Java
* Copyright (C) 2012-2024 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program 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 3 of the License, or (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.java.checks;
import org.sonar.check.Rule;
import org.sonar.plugins.java.api.IssuableSubscriptionVisitor;
import org.sonar.plugins.java.api.tree.CatchTree;
import org.sonar.plugins.java.api.tree.Tree;
import org.sonar.plugins.java.api.tree.Tree.Kind;
import org.sonar.plugins.java.api.tree.TypeTree;
import org.sonar.plugins.java.api.tree.UnionTypeTree;
import java.util.Collections;
import java.util.List;
@Rule(key = "S2235")
public class CatchIllegalMonitorStateExceptionCheck extends IssuableSubscriptionVisitor {
@Override
public List<Kind> nodesToVisit() {
return Collections.singletonList(Tree.Kind.CATCH);
}
@Override
public void visitNode(Tree tree) {
CatchTree catchTree = (CatchTree) tree;
TypeTree parameterTypeTree = catchTree.parameter().type();
if (parameterTypeTree.is(Kind.UNION_TYPE)) {
UnionTypeTree unionTypeTree = (UnionTypeTree) parameterTypeTree;
for (TypeTree exceptionTypeTree : unionTypeTree.typeAlternatives()) {
checkExceptionType(exceptionTypeTree);
}
} else {
checkExceptionType(parameterTypeTree);
}
}
private void checkExceptionType(TypeTree exceptionTypeTree) {
if (exceptionTypeTree.symbolType().is("java.lang.IllegalMonitorStateException")) {
reportIssue(exceptionTypeTree, "Refactor this piece of code to not catch IllegalMonitorStateException");
}
}
}