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Verify Error: Inconsistent args_size for opc_invokeinterface
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created by <a href="http://community.jboss.org/people/kingpin">kingpin</a> in <i>Javassist</i> - <a href="http://community.jboss.org/message/579700#579700">View the full discussion</a>
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<div class="jive-rendered-content"><p>I have been trying to generate some dynamic codes (Using Javassist) but program fails at a certain point when involving a double array or float array. The code is as follows</p><pre class="lang-java prettyprint"><code><span class="pln"> </span></code><pre class="jive-pre"><code class="jive-code jive-java">Class c = Customers.class; <font color="darkgreen">// called in main & Customer class just has a double[] Dubs = new double[10]</font>
CreateType(c); <font color="darkgreen">// Main</font>
 
 
<font color="navy"><b>public</b></font> <font color="navy"><b>static</b></font> Object CreateType(Class genericType)
<font color="navy">{</font>
        <font color="darkgreen">// some preReq declarations</font>
        CtMethod writeCode = dyn.getDeclaredMethod(<font color="red">"processCode"</font>);
 
        generateCode(genericType, Code, <font color="red">"temp"</font>); <font color="darkgreen">// Code is a StringBuilder class</font>
 
        System.out.println(Code);
 
        writeCode.insertAt(1, Code.toString()); <font color="darkgreen">// Compilation is successful</font>
 
        Class c = dyn.toClass();
 
        Dynamic h;
        Constructor[] ctorlist = <font color="navy"><b>null</b></font>;
 
        ctorlist =  c.getDeclaredConstructors(); <font color="darkgreen">// Problem is here</font>
 
        h = (DynamicSurrogate) ctorlist[0].newInstance(genericType);
 
        <font color="navy"><b>return</b></font> h;
<font color="navy">}</font>
 
 
</code></pre>
</pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Generated code is as follows</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="lang-java prettyprint"><code><span class="pln"> </span><pre class="jive-pre"><code class="jive-code jive-java">testapp1.Customers temp=(testapp1.Customers)graph;
    output.processDouble(temp.Dubs[1]);
</code></pre>
<span class="pln"> </span></code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>But problem arises when getDeclaredConstructors is called c.getDeclaredConstructors() ... it throws the following error</p><p>Exception in thread "main" java.lang.VerifyError: (class: testapp1/Dyn, method: processDouble signature: (Lsomething/Output;Ljava/lang/Object;)V) Inconsistent args_size for opc_invokeinterface</p><p>A workaround exists but does not make any sense, i.e. everything works fine if i simply create a copy of the double array and pass it on to processDouble in dynamic codei.e. if the dynamic code is </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="lang-java prettyprint"><code><span class="pln"> </span><pre class="jive-pre"><code class="jive-code jive-java">testapp1.Customers temp=(testapp1.Customers)graph;
    <font color="navy"><b>double</b></font>[] d = temp.Dubs;
    output.processDouble(d);
</code></pre>
<span class="pln"> </span></code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>n short , exception Unhandled is thrown by getDeclaredConstructor but it actually has nothing to do with a constructor because it doesnt matter if i create one or not</p><p>Hopefully my problem and code is clear enough, if any confusion please do tell, Thankyou in advance <span> :) </span></p></div>
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<p style="margin: 0;">Reply to this message by <a href="http://community.jboss.org/message/579700#579700">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in Javassist at <a href="http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2062">Community</a></p>
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