java: Fix typo in DOM API JNI initialization.
java: Fix typo in DOM API JNI initialization.

Bug was introduced in commit a2bcbc5e7abc141a3614d42c02f81493d658eade.

ArtifexSoftware/mupdf,ArtifexSoftware/mupdf,ArtifexSoftware/mupdf,ArtifexSoftware/mupdf,ArtifexSoftware/mupdf,ArtifexSoftware/mupdf,ArtifexSoftware/mupdf,ArtifexSoftware/mupdf