{"record":{"id":"f3951624184549ec","repo":"oracle/graal","slug":"no-instance-of-interop-can-be-created","errorCode":null,"errorMessage":"No instance of Interop can be created","messagePattern":"No instance of Interop can be created","errorType":"exception","errorClass":"RuntimeException","httpStatus":null,"severity":"error","filePath":"espresso/src/com.oracle.truffle.espresso.polyglot/src/com/oracle/truffle/espresso/polyglot/Interop.java","lineNumber":62,"sourceCode":"import java.nio.ByteOrder;\n\n/**\n * Provides access to the interoperability message protocol between Truffle languages. Every method\n * represents one message specified by the protocol. In the following text we will abbreviate\n * interoperability with interop. This class provides access to a <b>strict subset</b> of Truffle's\n * interop protocol.\n * \n * <p>\n * Foreign objects will always have a Java type in Espresso, how a Java type is attached to a\n * foreign object remains an implementation detail.\n * \n * @see Polyglot\n * @since 21.0\n */\npublic final class Interop {\n\n    private Interop() {\n        throw new RuntimeException(\"No instance of Interop can be created\");\n    }\n\n    // region Null Messages\n\n    /**\n     * Returns <code>true</code> if the receiver represents a <code>null</code> like value, else\n     * <code>false</code>. Most object oriented languages have one or many values representing null\n     * values. Invoking this message does not cause any observable side-effects.\n     *\n     * Foreign objects for which this method returns <code>true</code> behave the same as Java\n     * <code>null</code>, but its identity is preserved.\n     *\n     * @since 21.0\n     */\n    public static native boolean isNull(Object receiver);\n\n    // region Null Messages\n","sourceCodeStart":44,"sourceCodeEnd":80,"githubUrl":"https://github.com/oracle/graal/blob/a66e9ccd1d7bf2552883939aa0788dfd0e294aab/espresso/src/com.oracle.truffle.espresso.polyglot/src/com/oracle/truffle/espresso/polyglot/Interop.java#L44-L80","documentation":"Error \"No instance of Interop can be created\" thrown in oracle/graal.","triggerScenarios":"Thrown at espresso/src/com.oracle.truffle.espresso.polyglot/src/com/oracle/truffle/espresso/polyglot/Interop.java:62 when the library encounters an invalid state.","commonSituations":"Occurs when a caller violates the contract guarded by this check: No instance of Interop can be created","solutions":["Fix the condition reported by the error: No instance of Interop can be created","Check the throwing call site and ensure its documented preconditions (argument values, types, environment, or configuration) are satisfied before the call."],"exampleFix":"Validate inputs and environment so that the failing condition does not occur: No instance of Interop can be created","handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"a66e9ccd1d7bf2552883939aa0788dfd0e294aab","analyzedAt":"2026-08-14T13:58:47.161Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}