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add final modifier
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@@ -45,9 +45,9 @@ public final class ConnectionHolder {
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private final List<Statement> statementTrace = new ArrayList<Statement>();
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private boolean defaultReadOnly;
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private int defaultHoldability;
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private int defaultTransactionIsolation;
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private final boolean defaultReadOnly;
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private final int defaultHoldability;
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private final int defaultTransactionIsolation;
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public ConnectionHolder(DruidAbstractDataSource dataSource, Connection conn) throws SQLException{
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this.dataSource = dataSource;
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@@ -121,7 +121,7 @@ public final class ConnectionHolder {
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conn.setReadOnly(defaultReadOnly);
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conn.setHoldability(defaultHoldability);
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conn.setTransactionIsolation(defaultTransactionIsolation);
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connectionEventListeners.clear();
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statementEventListeners.clear();
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